6.19.12-rc1 review
Subsystems (5)
Greg Kroah-Hartman
maintainercover 6.19.12-rc1 review
This is the start of the stable review cycle for the 6.19.12 release. There are 311 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Fri, 10 Apr 2026 17:58:42 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at:
https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.19.12-rc1.gz
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.19.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <[email protected]>
Linux 6.19.12-rc1
Alexander Popov <[email protected]>
wifi: virt_wifi: remove SET_NETDEV_DEV to avoid use-after-free
Petr Mladek <[email protected]>
kallsyms: prevent module removal when printing module name and buildid
Petr Mladek <[email protected]>
kallsyms: cleanup code for appending the module buildid
Petr Mladek <[email protected]>
kallsyms: clean up modname and modbuildid initialization in kallsyms_lookup_buildid()
Petr Mladek <[email protected]>
kallsyms: clean up @namebuf initialization in kallsyms_lookup_buildid()
Taegu Ha <[email protected]>
usb: gadget: f_uac1_legacy: validate control request size
Michael Zimmermann <[email protected]>
usb: gadget: f_hid: move list and spinlock inits from bind to alloc
Kuen-Han Tsai <[email protected]>
usb: gadget: f_rndis: Fix net_device lifecycle with device_move
Kuen-Han Tsai <[email protected]>
usb: gadget: f_subset: Fix net_device lifecycle with device_move
Kuen-Han Tsai <[email protected]>
usb: gadget: f_eem: Fix net_device lifecycle with device_move
Kuen-Han Tsai <[email protected]>
usb: gadget: f_ecm: Fix net_device lifecycle with device_move
Kuen-Han Tsai <[email protected]>
usb: gadget: f_rndis: Protect RNDIS options with mutex
Kuen-Han Tsai <[email protected]>
usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
Jimmy Hu <[email protected]>
usb: gadget: uvc: fix NULL pointer dereference during unbind race
Kuen-Han Tsai <[email protected]>
usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo
Kuen-Han Tsai <[email protected]>
usb: gadget: u_ether: Fix race between gether_disconnect and eth_stop
Aditya Garg <[email protected]>
HID: appletb-kbd: add .resume method in PM
Nathan Rebello <[email protected]>
usb: typec: ucsi: validate connector number in ucsi_notify_common()
Sebastian Urban <[email protected]>
usb: gadget: dummy_hcd: fix premature URB completion when ZLP follows partial transfer
Alan Stern <[email protected]>
USB: dummy-hcd: Fix interrupt synchronization error
Alan Stern <[email protected]>
USB: dummy-hcd: Fix locking/synchronization error
Konrad Dybcio <[email protected]>
thunderbolt: Fix property read in nhi_wake_supported()
Andrei Kuchynski <[email protected]>
usb: typec: thunderbolt: Set enter_vdo during initialization
Xingjing Deng <[email protected]>
misc: fastrpc: check qcom_scm_assign_mem() return in rpmsg_probe
Xingjing Deng <[email protected]>
misc: fastrpc: possible double-free of cctx->remote_heap
Rafael J. Wysocki <[email protected]>
thermal: core: Fix thermal zone device registration error path
Rafael J. Wysocki <[email protected]>
thermal: core: Address thermal zone removal races with resume
Tzung-Bi Shih <[email protected]>
gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()
Shenwei Wang <[email protected]>
gpio: mxc: map Both Edge pad wakeup to Rising Edge
Andrea Righi <[email protected]>
sched_ext: Fix stale direct dispatch state in ddsp_dsq_id
Changwoo Min <[email protected]>
sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
Guangshuo Li <[email protected]>
cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path
Srujana Challa <[email protected]>
virtio_net: clamp rss_max_key_size to NETDEV_RSS_KEY_LEN
Jason Gunthorpe <[email protected]>
iommupt: Fix short gather if the unmap goes into a large mapping
Sven Eckelmann (Plasma Cloud) <[email protected]>
net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled
Yufan Chen <[email protected]>
net: ftgmac100: fix ring allocation unwind on open failure
Yang Yang <[email protected]>
vxlan: validate ND option lengths in vxlan_na_create
Eric Biggers <[email protected]>
crypto: tegra - Add missing CRYPTO_ALG_ASYNC
Cosmin Tanislav <[email protected]>
counter: rz-mtu3-cnt: do not use struct rz_mtu3_channel's dev member
Cosmin Tanislav <[email protected]>
counter: rz-mtu3-cnt: prevent counter from being toggled multiple times
Nicolas Pitre <[email protected]>
vt: resize saved unicode buffer on alt screen exit after resize
Liav Mordouch <[email protected]>
vt: discard stale unicode buffer on alt screen exit after resize
Dave Penkler <[email protected]>
gpib: Fix fluke driver s390 compile issue
Yifan Wu <[email protected]>
netfilter: ipset: drop logically empty buckets in mtype_del
Ivan Vera <[email protected]>
nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy
Christian Eggers <[email protected]>
nvmem: imx: assign nvmem_cell_info::raw_len
Changwoo Min <[email protected]>
PM: EM: Fix NULL pointer dereference when perf domain ID is not found
Guangshuo Li <[email protected]>
reset: gpio: fix double free in reset_add_gpio_aux_device() error path
Thomas Richter <[email protected]>
s390/cpum_sf: Cap sampling rate to prevent lsctl exception
Harald Freudenberger <[email protected]>
s390/zcrypt: Fix memory leak with CCA cards used as accelerator
Emanuele Ghidoli <[email protected]>
spi: cadence-qspi: Fix exec_mem_op error handling
Xu Yang <[email protected]>
dt-bindings: connector: add pd-disable dependency
Conor Dooley <[email protected]>
firmware: microchip: fail auto-update probe if no flash found
Ian Abbott <[email protected]>
comedi: me4000: Fix potential overrun of firmware buffer
Ian Abbott <[email protected]>
comedi: me_daq: Fix potential overrun of firmware buffer
Ian Abbott <[email protected]>
comedi: ni_atmio16d: Fix invalid clean-up after failed attach
Ian Abbott <[email protected]>
comedi: Reinit dev->spinlock between attachments to low-level drivers
Edward Adam Davis <[email protected]>
comedi: runflags cannot determine whether to reclaim chanlist
Deepanshu Kartikey <[email protected]>
comedi: dt2815: add hardware detection to prevent crash
Oliver Neukum <[email protected]>
cdc-acm: new quirk for EPSON HMD
Yang Yang <[email protected]>
bridge: br_nd_send: validate ND option lengths
Guangshuo Li <[email protected]>
auxdisplay: line-display: fix NULL dereference in linedisp_release
Jens Axboe <[email protected]>
io_uring: protect remaining lockless ctx->rings accesses with RCU
Dmitry Torokhov <[email protected]>
x86/platform/geode: Fix on-stack property data use-after-return bug
Guan-Yu Lin <[email protected]>
usb: core: use dedicated spinlock for offload state
Yongchao Wu <[email protected]>
usb: cdns3: gadget: fix state inconsistency on gadget init failure
Yongchao Wu <[email protected]>
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
Gabor Juhos <[email protected]>
usb: core: phy: avoid double use of 'usb3-phy'
Juno Choi <[email protected]>
usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop()
Justin Chen <[email protected]>
usb: ehci-brcm: fix sleep during atomic
Guan-Yu Lin <[email protected]>
usb: host: xhci-sideband: delegate offload_usage tracking to class drivers
Felix Gu <[email protected]>
usb: misc: usbio: Fix URB memory leak on submit failure
Heitor Alves de Siqueira <[email protected]>
usb: usbtmc: Flush anchored URBs in usbtmc_release
Guangshuo Li <[email protected]>
usb: ulpi: fix double free in ulpi_register_interface() error path
Miao Li <[email protected]>
usb: quirks: add DELAY_INIT quirk for another Silicon Motion flash drive
Johan Hovold <[email protected]>
gpib: lpvo_usb: fix memory leak on disconnect
Alexander Usyskin <[email protected]>
mei: me: reduce the scope on unexpected reset
Ethan Tidmore <[email protected]>
iio: gyro: mpu3050: Fix out-of-sequence free_irq()
Ethan Tidmore <[email protected]>
iio: gyro: mpu3050: Move iio_device_register() to correct location
Ethan Tidmore <[email protected]>
iio: gyro: mpu3050: Fix irq resource leak
Ethan Tidmore <[email protected]>
iio: gyro: mpu3050: Fix incorrect free_irq() variable
Francesco Lavra <[email protected]>
iio: imu: st_lsm6dsx: Set buffer sampling frequency for accelerometer only
Francesco Lavra <[email protected]>
iio: imu: st_lsm6dsx: Set FIFO ODR for accelerometer and gyroscope only
Josh Poimboeuf <[email protected]>
iio: imu: bmi160: Remove potential undefined behavior in bmi160_config_pin()
Aldo Conte <[email protected]>
iio: light: veml6070: fix veml6070_read() return value
David Lechner <[email protected]>
iio: light: vcnl4035: fix scan buffer on big-endian
Antoniu Miclaus <[email protected]>
iio: imu: adis16550: fix swapped gyro/accel filter functions
Antoniu Miclaus <[email protected]>
iio: dac: ad5770r: fix error return in ad5770r_read_raw()
Antoniu Miclaus <[email protected]>
iio: accel: adxl313: add missing error check in predisable
Antoniu Miclaus <[email protected]>
iio: accel: adxl380: fix FIFO watermark bit 8 always written as 0
Valek Andrej <[email protected]>
iio: accel: fix ADXL355 temperature signature value
Billy Tsai <[email protected]>
iio: adc: aspeed: clear reference voltage bits before configuring vref
Antoniu Miclaus <[email protected]>
iio: adc: ade9000: move mutex init before IRQ registration
Giorgi Tchankvetadze <[email protected]>
iio: adc: ade9000: fix wrong register in CALIBBIAS case for active power
Giorgi Tchankvetadze <[email protected]>
iio: adc: ade9000: fix wrong return type in streaming push
Dmitry Torokhov <[email protected]>
iio: adc: ti-ads7950: do not clobber gpio state in ti_ads7950_get()
Dmitry Torokhov <[email protected]>
iio: adc: ti-ads7950: normalize return value of gpio_get
Zoltan Illes <[email protected]>
Input: xpad - add support for Razer Wolverine V3 Pro
Shengyu Qu <[email protected]>
Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode
Liam Mitchell <[email protected]>
Input: bcm5974 - recover from failed mode switch
Christoffer Sandberg <[email protected]>
Input: i8042 - add TUXEDO InfinityBook Max 16 Gen10 AMD to i8042 quirk table
Bart Van Assche <[email protected]>
Input: synaptics-rmi4 - fix a locking bug in an error path
JP Hein <[email protected]>
USB: core: add NO_LPM quirk for Razer Kiyo Pro webcam
Wanquan Zhong <[email protected]>
USB: serial: option: add support for Rolling Wireless RW135R-GL
Frej Drejhammar <[email protected]>
USB: serial: io_edgeport: add support for Blackbox IC135A
Alex Deucher <[email protected]>
drm/amdgpu/pm: drop SMU driver if version not matched messages
Donet Tom <[email protected]>
drm/amdgpu: Change AMDGPU_VA_RESERVED_TRAP_SIZE to 64KB
Junrui Luo <[email protected]>
drm/amdgpu: validate doorbell_offset in user queue creation
Lijo Lazar <[email protected]>
drm/amdgpu: Fix wait after reset sequence in S4
Ville Syrjälä <[email protected]>
drm/i915/cdclk: Do the full CDCLK dance for min_voltage_level changes
Ville Syrjälä <[email protected]>
drm/i915/dp: Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
Ville Syrjälä <[email protected]>
drm/i915/dsi: Don't do DSC horizontal timing adjustments in command mode
Thomas Zimmermann <[email protected]>
drm/ast: dp501: Fix initialization of SCU2C
Felix Gu <[email protected]>
iio: adc: ti-ads1119: Replace IRQF_ONESHOT with IRQF_NO_THREAD
Felix Gu <[email protected]>
iio: adc: ti-ads1119: Reinit completion before wait_for_completion_timeout()
Felix Gu <[email protected]>
iio: adc: ti-ads1119: Fix unbalanced pm reference count in ds1119_single_conversion()
David Lechner <[email protected]>
iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()
David Lechner <[email protected]>
iio: adc: ti-adc161s626: fix buffer read on big-endian
David Lechner <[email protected]>
iio: orientation: hid-sensor-rotation: add timestamp hack to not break userspace
David Lechner <[email protected]>
iio: orientation: hid-sensor-rotation: fix quaternion alignment
David Lechner <[email protected]>
iio: add IIO_DECLARE_QUATERNION() macro
Adam Crosser <[email protected]>
gpib: fix use-after-free in IO ioctl handlers
Prike Liang <[email protected]>
drm/amdgpu: fix the idr allocation flags
Aleksandr Nogikh <[email protected]>
x86/kexec: Disable KCOV instrumentation after load_segments()
Stefan Wiehler <[email protected]>
mips: mm: Allocate tlb_vpn array atomically
Sanman Pradhan <[email protected]>
hwmon: (occ) Fix division by zero in occ_show_power_1()
Maciej W. Rozycki <[email protected]>
MIPS: Fix the GCC version check for `__multi3' workaround
Maciej W. Rozycki <[email protected]>
MIPS: SiByte: Bring back cache initialisation
Asim Viladi Oglu Manizada <[email protected]>
ksmbd: fix OOB write in QUERY_INFO for compound requests
Oleh Konko <[email protected]>
Bluetooth: hci_event: move wake reason storage into validated event handlers
hkbinbin <[email protected]>
Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync
Oleh Konko <[email protected]>
Bluetooth: SMP: force responder MITM requirements before building the pairing response
Oleh Konko <[email protected]>
Bluetooth: SMP: derive legacy responder STK authentication from MITM state
Junxi Qian <[email protected]>
io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs()
Zhang Heng <[email protected]>
ALSA: hda/realtek: change quirk for HP OmniBook 7 Laptop 16-bh0xxx
Sourav Nayak <[email protected]>
ALSA: hda/realtek: add quirk for HP Victus 15-fb0xxx
Zhang Heng <[email protected]>
ALSA: hda/realtek: Add quirk for ASUS ROG Strix SCAR 15
Zhang Heng <[email protected]>
ALSA: hda/realtek: add quirk for Acer Swift SFG14-73
Takashi Iwai <[email protected]>
ALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization
Takashi Iwai <[email protected]>
ALSA: ctxfi: Fix missing SPDIFI1 index handling
Takashi Iwai <[email protected]>
ALSA: ctxfi: Check the error for index mapping
Berk Cem Goksel <[email protected]>
ALSA: caiaq: fix stack out-of-bounds read in init_card
Tejun Heo <[email protected]>
sched_ext: Fix SCX_KICK_WAIT deadlock by deferring wait to balance callback
Eric Biggers <[email protected]>
lib/crypto: chacha: Zeroize permuted_state before it leaves scope
Cheng-Yang Chou <[email protected]>
sched_ext: Fix inconsistent NUMA node lookup in scx_select_cpu_dfl()
Srinivasan Shanmugam <[email protected]>
drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw()
Ernestas Kulik <[email protected]>
USB: serial: option: add MeiG Smart SRM825WN
Alexey Velichayshiy <[email protected]>
wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
Yasuaki Torimaru <[email protected]>
wifi: wilc1000: fix u8 overflow in SSID scan buffer size calculation
Alice Ryhl <[email protected]>
rust_binder: use AssertSync for BINDER_VM_OPS
Greg Kroah-Hartman <[email protected]>
drm/ioc32: stop speculation on the drm_compat_ioctl path
Sunil V L <[email protected]>
ACPI: RIMT: Add dependency between iommu and devices
Zishun Yi <[email protected]>
riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set
Paul Walmsley <[email protected]>
riscv: kgdb: fix several debug register assignment bugs
Ian Rogers <[email protected]>
perf/x86: Fix potential bad container_of in intel_pmu_hw_config
Peter Zijlstra <[email protected]>
sched/debug: Fix avg_vruntime() usage
Peter Zijlstra <[email protected]>
sched/fair: Fix zero_vruntime tracking fix
Shiji Yang <[email protected]>
mips: ralink: update CPU clock index
Corey Hickey <[email protected]>
hwmon: (asus-ec-sensors) Fix T_Sensor for PRIME X670E-PRO WIFI
Chen Ni <[email protected]>
drm/sysfb: Fix efidrm error handling and memory type mismatch
Jessica Liu <[email protected]>
irqchip/riscv-aplic: Restrict genpd notifier to device tree only
Sanman Pradhan <[email protected]>
hwmon: (occ) Fix missing newline in occ_show_extended()
Felix Gu <[email protected]>
spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback
Sanman Pradhan <[email protected]>
hwmon: (tps53679) Fix device ID comparison and printing in tps53676_identify()
Daniele Ceraolo Spurio <[email protected]>
drm/xe/pxp: Clear restart flag in pxp_start after jumping back
Daniele Ceraolo Spurio <[email protected]>
drm/xe/pxp: Remove incorrect handling of impossible state during suspend
Daniele Ceraolo Spurio <[email protected]>
drm/xe/pxp: Clean up termination status on failure
Jonathan Cavitt <[email protected]>
drm/xe/xe_pagefault: Disallow writes to read-only VMAs
Felix Gu <[email protected]>
spi: stm32-ospi: Fix reset control leak on probe error
Felix Gu <[email protected]>
spi: stm32-ospi: Fix resource leak in remove() callback
Jamie Gibbons <[email protected]>
dt-bindings: gpio: fix microchip #interrupt-cells
Bartosz Golaszewski <[email protected]>
gpio: shared: shorten the critical section in gpiochip_setup_shared()
Sanman Pradhan <[email protected]>
hwmon: (ltc4286) Add missing MODULE_IMPORT_NS("PMBUS")
Sanman Pradhan <[email protected]>
hwmon: (pxe1610) Check return value of page-select write in probe
Sanman Pradhan <[email protected]>
hwmon: (tps53679) Fix array access with zero-length block read
Qi Tang <[email protected]>
io_uring/rsrc: reject zero-length fixed buffer import
Youssef Samir <[email protected]>
accel/qaic: Handle DBC deactivation if the owner went away
Liu Ying <[email protected]>
drm/bridge: Fix refcount shown via debugfs for encoder_bridges_show()
Felix Gu <[email protected]>
gpio: qixis-fpga: Fix error handling for devm_regmap_init_mmio()
Bartosz Golaszewski <[email protected]>
gpio: shared: handle pins shared by child nodes of devices
Bartosz Golaszewski <[email protected]>
gpio: shared: call gpio_chip::of_xlate() if set
Vladimir Zapolskiy <[email protected]>
interconnect: qcom: sm8450: Fix NULL pointer dereference in icc_link_nodes()
Barnabás Pőcze <[email protected]>
gpiolib: clear requested flag if line is invalid
David Lechner <[email protected]>
iio: imu: bno055: fix BNO055_SCAN_CH_COUNT off by one
Maarten Lankhorst <[email protected]>
Revert "drm: Fix use-after-free on framebuffers and property blobs when calling drm_dev_unplug"
Daniel Borkmann <[email protected]>
bpf: Fix incorrect pruning due to atomic fetch precision tracking
Varun R Mallya <[email protected]>
bpf: Reject sleepable kprobe_multi programs at attach time
Qi Tang <[email protected]>
bpf: reject direct access to nullable PTR_TO_BUF pointers
Dimitri Daskalakis <[email protected]>
eth: fbnic: Increase FBNIC_QUEUE_SIZE_MIN to 64
Eric Dumazet <[email protected]>
ipv6: avoid overflows in ip6_datagram_send_ctl()
Luka Gejak <[email protected]>
net: hsr: fix VLAN add unwind on slave errors
Xiang Mei <[email protected]>
net/sched: cls_flow: fix NULL pointer dereference on shared blocks
Xiang Mei <[email protected]>
net/sched: cls_fw: fix NULL pointer dereference on shared blocks
Martin Schiller <[email protected]>
net/x25: Fix overflow when accumulating packets
Martin Schiller <[email protected]>
net/x25: Fix potential double free of skb
Pavan Chebbi <[email protected]>
bnxt_en: Restore default stat ctxs for ULP when resource is available
Michael Chan <[email protected]>
bnxt_en: Don't assume XDP is never enabled in bnxt_init_dflt_ring_mode()
Michael Chan <[email protected]>
bnxt_en: Refactor some basic ring setup and adjustment logic
Saeed Mahameed <[email protected]>
net/mlx5: Fix switchdev mode rollback in case of failure
Saeed Mahameed <[email protected]>
net/mlx5: Avoid "No data available" when FW version queries fail
Shay Drory <[email protected]>
net/mlx5: lag: Check for LAG device before creating debugfs
Fedor Pchelkin <[email protected]>
net: macb: properly unregister fixed rate clocks
Fedor Pchelkin <[email protected]>
net: macb: fix clk handling on PCI glue driver removal
Yucheng Lu <[email protected]>
net/sched: sch_netem: fix out-of-bounds access in packet corruption
Kuniyuki Iwashima <[email protected]>
bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().
Weiming Shi <[email protected]>
rds: ib: reject FRMR registration before IB connection is established
Keenan Dong <[email protected]>
Bluetooth: MGMT: validate mesh send advertising payload length
Pauli Virtanen <[email protected]>
Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
Pauli Virtanen <[email protected]>
Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync
Keenan Dong <[email protected]>
Bluetooth: MGMT: validate LTK enc_size on load
Jonathan Rissanen <[email protected]>
Bluetooth: hci_h4: Fix race during initialization
Luiz Augusto von Dentz <[email protected]>
Bluetooth: hci_sync: Fix UAF in le_read_features_complete
Pauli Virtanen <[email protected]>
Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails
Pauli Virtanen <[email protected]>
Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists
Luiz Augusto von Dentz <[email protected]>
Bluetooth: L2CAP: Add support for setting BT_PHY
Cen Zhang <[email protected]>
Bluetooth: SCO: fix race conditions in sco_sock_connect()
Pauli Virtanen <[email protected]>
Bluetooth: hci_sync: call destroy in hci_cmd_sync_run if immediate
Pablo Neira Ayuso <[email protected]>
netfilter: nf_tables: reject immediate NF_QUEUE verdict
Pablo Neira Ayuso <[email protected]>
netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP
Pablo Neira Ayuso <[email protected]>
netfilter: ctnetlink: ignore explicit helper on new expectations
Pablo Neira Ayuso <[email protected]>
netfilter: nf_conntrack_expect: store netns and zone in expectation
Pablo Neira Ayuso <[email protected]>
netfilter: nf_conntrack_expect: use expect->helper
Pablo Neira Ayuso <[email protected]>
netfilter: nf_conntrack_expect: honor expectation helper field
Qi Tang <[email protected]>
netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent
Qi Tang <[email protected]>
netfilter: nf_conntrack_helper: pass helper to expect cleanup
Florian Westphal <[email protected]>
netfilter: ipset: use nla_strcmp for IPSET_ATTR_NAME attr
Florian Westphal <[email protected]>
netfilter: x_tables: ensure names are nul-terminated
Florian Westphal <[email protected]>
netfilter: nfnetlink_log: account for netlink header size
Pablo Neira Ayuso <[email protected]>
netfilter: flowtable: strictly check for maximum number of actions
Geoffrey D. Bennett <[email protected]>
ALSA: usb-audio: Exclude Scarlett 2i2 1st Gen (8016) from SKIP_IFACE_SETUP
Michal Piekos <[email protected]>
net: stmmac: skip VLAN restore when VLAN hash ops are missing
Li Xiasong <[email protected]>
mptcp: fix soft lockup in mptcp_recvmsg()
Geliang Tang <[email protected]>
mptcp: add eat_recv_skb helper
Zhengchuan Liang <[email protected]>
net: ipv6: flowlabel: defer exclusive option free until RCU teardown
Alexei Starovoitov <[email protected]>
bpf: Fix regsafe() for pointers to packet
Xiang Mei <[email protected]>
bridge: mrp: reject zero test interval to avoid OOM panic
Julian Braha <[email protected]>
ASoC: Intel: boards: fix unmet dependency on PINCTRL
Suraj Gupta <[email protected]>
net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets
Suraj Gupta <[email protected]>
net: xilinx: axienet: Correct BD length masks to match AXIDMA IP spec
Pengpeng Hou <[email protected]>
NFC: pn533: bound the UART receive buffer
Xiang Mei <[email protected]>
net: bonding: fix use-after-free in bond_xmit_broadcast()
Herbert Xu <[email protected]>
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
Herbert Xu <[email protected]>
crypto: algif_aead - Revert to operating out-of-place
Pengpeng Hou <[email protected]>
bnxt_en: set backing store type from query type
Yochai Eisenrich <[email protected]>
net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
Guoyu Su <[email protected]>
net: use skb_header_pointer() for TCPv4 GSO frag_off check
Paolo Abeni <[email protected]>
net: introduce mangleid_features
Lorenzo Bianconi <[email protected]>
net: airoha: Add missing cleanup bits in airoha_qdma_cleanup_rx_queue()
Paolo Abeni <[email protected]>
ipv6: prevent possible UaF in addrconf_permanent_addr()
Jihed Chaibi <[email protected]>
ASoC: ep93xx: Fix unchecked clk_prepare_enable() and add rollback on failure
Dag Smedberg <[email protected]>
ALSA: usb-audio: Exclude Scarlett Solo 1st Gen from SKIP_IFACE_SETUP
Wei Fang <[email protected]>
net: enetc: do not allow VF to configure the RSS key
Wei Fang <[email protected]>
net: enetc: check whether the RSS algorithm is Toeplitz
Marek Behún <[email protected]>
net: sfp: Fix Ubiquiti U-Fiber Instant SFP module on mvneta
Xiang Mei <[email protected]>
net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()
Yang Yang <[email protected]>
bridge: br_nd_send: linearize skb before parsing ND options
Dimitri Daskalakis <[email protected]>
eth: fbnic: Account for page fragments when updating BDQ tail
Eric Dumazet <[email protected]>
ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
Eric Dumazet <[email protected]>
ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
David Carlier <[email protected]>
net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatch
Thomas Bogendoerfer <[email protected]>
tg3: Fix race for querying speed/duplex
Pengpeng Hou <[email protected]>
net/ipv6: ioam6: prevent schema length wraparound in trace fill
Sherry Yang <[email protected]>
iommupt/amdv1: mark amdv1pt_install_leaf_entry as __always_inline
Yochai Eisenrich <[email protected]>
net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
Jiayuan Chen <[email protected]>
net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak
Wei Fang <[email protected]>
net: enetc: do not access non-existent registers on pseudo MAC
Wei Fang <[email protected]>
net: enetc: add graceful stop to safely reinitialize the TX Ring
Wei Fang <[email protected]>
net: enetc: reset PIR and CIR if they are not equal when initializing TX ring
Buday Csaba <[email protected]>
net: fec: fix the PTP periodic output sysfs interface
Qingfang Deng <[email protected]>
netdevsim: fix build if SKB_EXTENSIONS=n
Dipayaan Roy <[email protected]>
net: mana: Fix RX skb truesize accounting
Sabrina Dubroca <[email protected]>
mpls: add seqcount to protect the platform_label{,s} pair
Norbert Szetei <[email protected]>
crypto: af-alg - fix NULL pointer dereference in scatterwalk
Mikulas Patocka <[email protected]>
crypto: deflate - fix spurious -ENOSPC
Horia Geantă <[email protected]>
crypto: caam - fix overflow on long hmac keys
Horia Geantă <[email protected]>
crypto: caam - fix DMA corruption on long hmac keys
Tejun Heo <[email protected]>
cgroup: Fix cgroup_drain_dying() testing the wrong condition
Tejun Heo <[email protected]>
selftests/cgroup: Don't require synchronous populated update on task exit
Tejun Heo <[email protected]>
cgroup: Wait for dying tasks to leave on rmdir
Reshma Immaculate Rajkumar <[email protected]>
wifi: ath11k: Pass the correct value of each TID during a stop AMPDU session
Johannes Berg <[email protected]>
wifi: iwlwifi: mld: correctly set wifi generation data
Emmanuel Grumbach <[email protected]>
wifi: iwlwifi: mvm: don't send a 6E related command when not supported
Pagadala Yesu Anjaneyulu <[email protected]>
wifi: iwlwifi: mld: Fix MLO scan timing
Frank Li <[email protected]>
dt-bindings: auxdisplay: ht16k33: Use unevaluatedProperties to fix common property warning
Stanislav Kinsburskii <[email protected]>
mshv: Fix error handling in mshv_region_pin
Praveen Talari <[email protected]>
spi: geni-qcom: Check DMA interrupts early in ISR
Paulo Alcantara <[email protected]>
smb: client: fix generic/694 due to wrong ->i_blocks
Alex Hung <[email protected]>
drm/amd/display: Fix gamma 2.2 colorop TFs
ZhengYuan Huang <[email protected]>
btrfs: reject root items with drop_progress and zero drop_level
Mikko Perttunen <[email protected]>
i2c: tegra: Don't mark devices with pins as IRQ safe
Filipe Manana <[email protected]>
btrfs: reserve enough transaction items for qgroup ioctls
Lee Jones <[email protected]>
HID: multitouch: Check to ensure report responses match the request
Joe Lawrence <[email protected]>
objtool/klp: fix mkstemp() failure with long paths
Lee Jones <[email protected]>
HID: core: Mitigate potential OOB by removing bogus memset()
Lee Jones <[email protected]>
HID: logitech-hidpp: Prevent use-after-free on force feedback initialisation failure
Josh Poimboeuf <[email protected]>
objtool: Fix Clang jump table detection
Paul SAGE <[email protected]>
tg3: replace placeholder MAC address with device property
Johannes Thumshirn <[email protected]>
btrfs: don't take device_list_mutex when querying zone info
Deepanshu Kartikey <[email protected]>
atm: lec: fix use-after-free in sock_def_readable()
Benoît Sevens <[email protected]>
HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
Deepanshu Kartikey <[email protected]>
wifi: mac80211: check tdls flag in ieee80211_tdls_oper
Adrian Freund <[email protected]>
HID: logitech-hidpp: Enable MX Master 4 over bluetooth
Pepper Gray <[email protected]>
arm64/scs: Fix handling of advance_loc4
Long Li <[email protected]>
xfs: close crash window in attr dabtree inactivation
Long Li <[email protected]>
xfs: factor out xfs_attr3_leaf_init
Long Li <[email protected]>
xfs: factor out xfs_attr3_node_entry_remove
Josef Bacik <[email protected]>
scsi: target: tcm_loop: Drain commands in target_reset handler
Thinh Nguyen <[email protected]>
scsi: target: file: Use kzalloc_flex for aio_cmd
Guangshuo Li <[email protected]>
net: mana: fix use-after-free in add_adev() error path
Willem de Bruijn <[email protected]>
net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback
Yang Wang <[email protected]>
drm/amd/pm: disable OD_FAN_CURVE if temp or pwm range invalid for smu v13
-------------
Diffstat:
.../bindings/auxdisplay/holtek,ht16k33.yaml | 2 +- .../bindings/connector/usb-connector.yaml | 1 + .../bindings/gpio/microchip,mpfs-gpio.yaml | 4 +- Makefile | 4 +- arch/arm64/kernel/pi/patch-scs.c | 8 + arch/mips/lib/multi3.c | 6 +- arch/mips/mm/cache.c | 3 +- arch/mips/mm/tlb-r4k.c | 2 +- arch/mips/ralink/clk.c | 8 +- arch/riscv/kernel/kgdb.c | 7 +- arch/riscv/kernel/process.c | 4 +- arch/s390/kernel/perf_cpum_sf.c | 6 +- arch/x86/events/intel/core.c | 6 +- arch/x86/kernel/Makefile | 14 ++ arch/x86/mm/Makefile | 2 + arch/x86/platform/geode/geode-common.c | 24 ++- crypto/af_alg.c | 53 ++---- crypto/algif_aead.c | 100 ++--------- crypto/algif_skcipher.c | 6 +- crypto/authencesn.c | 50 +++--- crypto/deflate.c | 11 +- drivers/accel/qaic/qaic_control.c | 47 ++++- drivers/acpi/riscv/rimt.c | 7 + drivers/android/binder/page_range.rs | 8 +- drivers/android/binder/rust_binder_main.rs | 2 +- drivers/auxdisplay/line-display.c | 2 +- drivers/bluetooth/hci_h4.c | 3 - drivers/comedi/comedi_fops.c | 8 +- drivers/comedi/drivers.c | 8 + drivers/comedi/drivers/dt2815.c | 12 ++ drivers/comedi/drivers/me4000.c | 16 +- drivers/comedi/drivers/me_daq.c | 35 ++-- drivers/comedi/drivers/ni_atmio16d.c | 3 +- drivers/counter/rz-mtu3-cnt.c | 67 +++---- drivers/cpufreq/cpufreq_governor.c | 6 +- drivers/crypto/caam/caamalg_qi2.c | 3 +- drivers/crypto/caam/caamhash.c | 3 +- drivers/crypto/tegra/tegra-se-aes.c | 11 +- drivers/crypto/tegra/tegra-se-hash.c | 30 ++-- drivers/firmware/microchip/mpfs-auto-update.c | 10 +- drivers/gpib/Kconfig | 1 + drivers/gpib/common/gpib_os.c | 96 +++++++--- drivers/gpib/include/gpib_types.h | 8 + drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c | 4 +- drivers/gpio/gpio-mxc.c | 10 +- drivers/gpio/gpio-qixis-fpga.c | 4 +- drivers/gpio/gpiolib-shared.c | 57 ++++-- drivers/gpio/gpiolib-shared.h | 11 +- drivers/gpio/gpiolib.c | 135 +++++++------- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 5 +- drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 7 + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 2 +- drivers/gpu/drm/amd/amdgpu/psp_v11_0.c | 3 +- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 4 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 6 +- .../drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 17 +- drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 1 - drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c | 1 - .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 33 +++- .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 33 +++- drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c | 1 - drivers/gpu/drm/ast/ast_dp501.c | 2 +- drivers/gpu/drm/drm_bridge.c | 16 +- drivers/gpu/drm/drm_file.c | 5 +- drivers/gpu/drm/drm_ioc32.c | 2 + drivers/gpu/drm/drm_mode_config.c | 9 +- drivers/gpu/drm/i915/display/g4x_dp.c | 2 +- drivers/gpu/drm/i915/display/icl_dsi.c | 4 +- drivers/gpu/drm/i915/display/intel_cdclk.c | 54 ++++++ drivers/gpu/drm/sysfb/efidrm.c | 46 +++-- drivers/gpu/drm/xe/xe_pagefault.c | 6 + drivers/gpu/drm/xe/xe_pxp.c | 11 +- drivers/hid/hid-appletb-kbd.c | 5 +- drivers/hid/hid-core.c | 7 +- drivers/hid/hid-logitech-hidpp.c | 6 +- drivers/hid/hid-multitouch.c | 7 + drivers/hid/wacom_wac.c | 10 ++ drivers/hv/mshv_regions.c | 6 +- drivers/hwmon/asus-ec-sensors.c | 7 +- drivers/hwmon/occ/common.c | 19 +- drivers/hwmon/pmbus/ltc4286.c | 1 + drivers/hwmon/pmbus/pxe1610.c | 5 +- drivers/hwmon/pmbus/tps53679.c | 10 +- drivers/i2c/busses/Kconfig | 2 + drivers/i2c/busses/i2c-tegra.c | 5 +- drivers/iio/accel/adxl313_core.c | 2 + drivers/iio/accel/adxl355_core.c | 2 +- drivers/iio/accel/adxl380.c | 2 +- drivers/iio/adc/ade9000.c | 12 +- drivers/iio/adc/aspeed_adc.c | 1 + drivers/iio/adc/ti-adc161s626.c | 41 +++-- drivers/iio/adc/ti-ads1119.c | 11 +- drivers/iio/adc/ti-ads7950.c | 8 +- drivers/iio/dac/ad5770r.c | 2 +- drivers/iio/gyro/mpu3050-core.c | 32 ++-- drivers/iio/imu/adis16550.c | 8 +- drivers/iio/imu/bmi160/bmi160_core.c | 15 +- drivers/iio/imu/bno055/bno055.c | 2 +- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 15 +- drivers/iio/light/vcnl4035.c | 18 +- drivers/iio/light/veml6070.c | 4 +- drivers/iio/orientation/hid-sensor-rotation.c | 24 ++- drivers/input/joystick/xpad.c | 5 + drivers/input/mouse/bcm5974.c | 42 ++++- drivers/input/rmi4/rmi_f54.c | 4 +- drivers/input/serio/i8042-acpipnpio.h | 7 + drivers/interconnect/qcom/sm8450.c | 4 +- drivers/iommu/generic_pt/fmt/amdv1.h | 2 +- drivers/iommu/generic_pt/iommu_pt.h | 2 +- drivers/irqchip/irq-riscv-aplic-main.c | 4 +- drivers/misc/fastrpc.c | 5 +- drivers/misc/mei/hw-me.c | 14 +- drivers/net/bonding/bond_main.c | 2 +- drivers/net/ethernet/airoha/airoha_eth.c | 18 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 76 +++++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 5 +- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 5 +- drivers/net/ethernet/broadcom/tg3.c | 13 +- drivers/net/ethernet/cadence/macb_pci.c | 10 +- drivers/net/ethernet/faraday/ftgmac100.c | 28 ++- drivers/net/ethernet/freescale/enetc/enetc.c | 13 +- drivers/net/ethernet/freescale/enetc/enetc4_hw.h | 11 ++ drivers/net/ethernet/freescale/enetc/enetc4_pf.c | 118 +++++++++++-- .../net/ethernet/freescale/enetc/enetc_ethtool.c | 10 +- drivers/net/ethernet/freescale/fec_ptp.c | 3 - drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 21 ++- drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 4 +- .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 2 + drivers/net/ethernet/mellanox/mlx5/core/fw.c | 49 ++++-- .../net/ethernet/mellanox/mlx5/core/lag/debugfs.c | 3 + .../net/ethernet/mellanox/mlx5/core/mlx5_core.h | 4 +- drivers/net/ethernet/meta/fbnic/fbnic_txrx.c | 6 +- drivers/net/ethernet/meta/fbnic/fbnic_txrx.h | 2 +- drivers/net/ethernet/microsoft/mana/mana_en.c | 13 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 14 +- drivers/net/ethernet/ti/icssg/icssg_common.c | 2 +- drivers/net/ethernet/xilinx/xilinx_axienet.h | 4 +- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 9 +- drivers/net/phy/sfp.c | 7 +- drivers/net/virtio_net.c | 20 +-- drivers/net/vxlan/vxlan_core.c | 6 +- drivers/net/wireless/ath/ath11k/dp_rx.c | 15 +- .../net/wireless/intel/iwlwifi/fw/api/commands.h | 5 + drivers/net/wireless/intel/iwlwifi/fw/api/scan.h | 10 ++ drivers/net/wireless/intel/iwlwifi/mld/iface.c | 101 +++++++---- drivers/net/wireless/intel/iwlwifi/mld/mac80211.c | 19 ++ drivers/net/wireless/intel/iwlwifi/mld/mld.c | 1 + drivers/net/wireless/intel/iwlwifi/mld/mlo.c | 4 +- drivers/net/wireless/intel/iwlwifi/mld/notif.c | 5 + drivers/net/wireless/intel/iwlwifi/mld/scan.c | 30 +++- drivers/net/wireless/intel/iwlwifi/mld/scan.h | 9 +- drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 2 +- drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 3 +- drivers/net/wireless/microchip/wilc1000/hif.c | 2 +- drivers/net/wireless/virtual/virt_wifi.c | 1 - drivers/nfc/pn533/uart.c | 3 + drivers/nvmem/imx-ocotp-ele.c | 1 + drivers/nvmem/imx-ocotp.c | 1 + drivers/nvmem/zynqmp_nvmem.c | 8 +- drivers/reset/core.c | 1 - drivers/s390/crypto/zcrypt_msgtype6.c | 32 ++-- drivers/spi/spi-amlogic-spifc-a4.c | 12 ++ drivers/spi/spi-cadence-quadspi.c | 17 +- drivers/spi/spi-geni-qcom.c | 9 +- drivers/spi/spi-stm32-ospi.c | 9 +- drivers/target/loopback/tcm_loop.c | 52 +++++- drivers/target/target_core_file.c | 2 +- drivers/thermal/thermal_core.c | 32 +++- drivers/thunderbolt/nhi.c | 2 +- drivers/tty/vt/vt.c | 18 ++ drivers/usb/cdns3/cdns3-gadget.c | 4 + drivers/usb/class/cdc-acm.c | 9 + drivers/usb/class/cdc-acm.h | 1 + drivers/usb/class/usbtmc.c | 3 + drivers/usb/common/ulpi.c | 5 +- drivers/usb/core/driver.c | 23 ++- drivers/usb/core/offload.c | 102 ++++++----- drivers/usb/core/phy.c | 12 +- drivers/usb/core/quirks.c | 3 + drivers/usb/core/usb.c | 1 + drivers/usb/dwc2/gadget.c | 2 + drivers/usb/gadget/function/f_ecm.c | 35 ++-- drivers/usb/gadget/function/f_eem.c | 59 ++++--- drivers/usb/gadget/function/f_hid.c | 19 +- drivers/usb/gadget/function/f_rndis.c | 49 ++++-- drivers/usb/gadget/function/f_subset.c | 63 ++++--- drivers/usb/gadget/function/f_uac1_legacy.c | 47 +++-- drivers/usb/gadget/function/f_uvc.c | 39 +++- drivers/usb/gadget/function/u_ecm.h | 21 ++- drivers/usb/gadget/function/u_eem.h | 21 ++- drivers/usb/gadget/function/u_ether.c | 16 +- drivers/usb/gadget/function/u_gether.h | 22 ++- drivers/usb/gadget/function/u_rndis.h | 31 +++- drivers/usb/gadget/function/uvc.h | 3 + drivers/usb/gadget/function/uvc_v4l2.c | 5 +- drivers/usb/gadget/udc/dummy_hcd.c | 42 +++-- drivers/usb/host/ehci-brcm.c | 4 +- drivers/usb/host/xhci-sideband.c | 18 +- drivers/usb/misc/usbio.c | 7 +- drivers/usb/serial/io_edgeport.c | 3 + drivers/usb/serial/io_usbvend.h | 1 + drivers/usb/serial/option.c | 4 + drivers/usb/typec/altmodes/thunderbolt.c | 44 ++--- drivers/usb/typec/ucsi/ucsi.c | 9 +- fs/btrfs/ioctl.c | 12 +- fs/btrfs/tree-checker.c | 17 ++ fs/btrfs/zoned.c | 6 +- fs/smb/client/cifsglob.h | 6 + fs/smb/client/file.c | 1 - fs/smb/client/inode.c | 21 +-- fs/smb/client/smb2ops.c | 20 +-- fs/smb/server/smb2pdu.c | 121 +++++++++---- fs/smb/server/smbacl.c | 43 +++++ fs/smb/server/smbacl.h | 2 + fs/xfs/libxfs/xfs_attr_leaf.c | 22 +++ fs/xfs/libxfs/xfs_attr_leaf.h | 3 + fs/xfs/libxfs/xfs_da_btree.c | 53 ++++-- fs/xfs/libxfs/xfs_da_btree.h | 2 + fs/xfs/xfs_attr_inactive.c | 99 ++++++----- include/crypto/if_alg.h | 5 +- include/linux/cgroup-defs.h | 3 + include/linux/iio/iio.h | 12 ++ include/linux/netdevice.h | 3 + include/linux/netfilter/ipset/ip_set.h | 2 +- include/linux/skbuff.h | 1 + include/linux/usb.h | 10 +- include/net/bluetooth/bluetooth.h | 39 ++-- include/net/bluetooth/hci.h | 9 + include/net/bluetooth/hci_core.h | 1 + include/net/bluetooth/hci_sync.h | 3 + include/net/netfilter/nf_conntrack_expect.h | 20 ++- include/net/netns/mpls.h | 1 + io_uring/io_uring.c | 62 ++++--- io_uring/io_uring.h | 34 +++- io_uring/net.c | 4 + io_uring/rsrc.c | 4 + kernel/bpf/verifier.c | 37 +++- kernel/cgroup/cgroup.c | 88 ++++++++- kernel/kallsyms.c | 64 +++++-- kernel/power/em_netlink.c | 2 + kernel/sched/debug.c | 4 +- kernel/sched/ext.c | 144 +++++++++++---- kernel/sched/ext_idle.c | 33 ++-- kernel/sched/fair.c | 10 +- kernel/sched/sched.h | 3 + kernel/trace/bpf_trace.c | 4 + lib/crypto/chacha-block-generic.c | 4 + net/atm/lec.c | 72 +++++--- net/atm/lec.h | 2 +- net/bluetooth/hci_conn.c | 113 +++++++++++- net/bluetooth/hci_event.c | 153 ++++++++-------- net/bluetooth/hci_sync.c | 152 +++++++++++++--- net/bluetooth/l2cap_sock.c | 20 ++- net/bluetooth/mgmt.c | 17 +- net/bluetooth/sco.c | 30 +++- net/bluetooth/smp.c | 11 +- net/bridge/br_arp_nd_proxy.c | 18 +- net/bridge/br_mrp_netlink.c | 4 +- net/core/dev.c | 38 +++- net/core/skmsg.c | 13 +- net/hsr/hsr_device.c | 32 ++-- net/ipv6/addrconf.c | 6 +- net/ipv6/datagram.c | 10 ++ net/ipv6/icmp.c | 3 + net/ipv6/ioam6.c | 4 +- net/ipv6/ip6_flowlabel.c | 5 - net/ipv6/ip6_tunnel.c | 5 + net/ipv6/ndisc.c | 3 + net/mac80211/tdls.c | 2 +- net/mpls/af_mpls.c | 29 ++- net/mptcp/protocol.c | 30 ++-- net/netfilter/ipset/ip_set_core.c | 4 +- net/netfilter/ipset/ip_set_hash_gen.h | 2 +- net/netfilter/ipset/ip_set_list_set.c | 4 +- net/netfilter/nf_conntrack_broadcast.c | 8 +- net/netfilter/nf_conntrack_expect.c | 25 ++- net/netfilter/nf_conntrack_h323_main.c | 12 +- net/netfilter/nf_conntrack_helper.c | 13 +- net/netfilter/nf_conntrack_netlink.c | 87 +++------ net/netfilter/nf_conntrack_sip.c | 4 +- net/netfilter/nf_flow_table_offload.c | 196 ++++++++++++++------- net/netfilter/nf_tables_api.c | 7 +- net/netfilter/nfnetlink_log.c | 2 +- net/netfilter/x_tables.c | 23 +++ net/netfilter/xt_cgroup.c | 6 + net/netfilter/xt_rateest.c | 5 + net/qrtr/af_qrtr.c | 31 ++-- net/rds/ib_rdma.c | 7 +- net/sched/cls_api.c | 1 + net/sched/cls_flow.c | 10 +- net/sched/cls_fw.c | 14 +- net/sched/sch_hfsc.c | 4 +- net/sched/sch_netem.c | 5 +- net/x25/x25_in.c | 9 +- net/x25/x25_subr.c | 1 + sound/hda/codecs/realtek/alc269.c | 12 +- sound/pci/ctxfi/ctatc.c | 10 +- sound/pci/ctxfi/ctdaio.c | 82 +++++---- sound/soc/cirrus/ep93xx-i2s.c | 34 ++-- sound/soc/intel/boards/Kconfig | 2 - sound/usb/caiaq/device.c | 2 +- sound/usb/qcom/qc_audio_offload.c | 10 +- sound/usb/quirks.c | 2 + tools/objtool/check.c | 5 +- tools/objtool/elf.c | 23 +-- tools/testing/selftests/cgroup/lib/cgroup_util.c | 15 ++ .../selftests/cgroup/lib/include/cgroup_util.h | 2 + tools/testing/selftests/cgroup/test_core.c | 3 +- tools/testing/selftests/cgroup/test_kill.c | 7 +- 311 files changed, 3926 insertions(+), 1765 deletions(-)
Greg Kroah-Hartman
maintainerPATCH 1/311 drm/amd/pm: disable OD_FAN_CURVE if temp or pwm range invalid for smu v13
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yang Wang <[email protected]>
[ Upstream commit 3e6dd28a11083e83e11a284d99fcc9eb748c321c ]
Forcibly disable the OD_FAN_CURVE feature when temperature or PWM range is invalid, otherwise PMFW will reject this configuration on smu v13.0.x
example:
$ sudo cat /sys/bus/pci/devices/<BDF>/gpu_od/fan_ctrl/fan_curve
OD_FAN_CURVE:
0: 0C 0%
1: 0C 0%
2: 0C 0%
3: 0C 0%
4: 0C 0%OD_RANGE:FAN_CURVE(hotspot temp): 0C 0CFAN_CURVE(fan speed): 0% 0%
$ echo "0 50 40" | sudo tee fan_curve
kernel log:
[ 756.442527] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) must be within [0, 0]! [ 777.345800] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) must be within [0, 0]!
--- drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 33 ++++++++++++++++++- drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 33 ++++++++++++++++++- 2 files changed, 64 insertions(+), 2 deletions(-)
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c +32 -1
@@ -59,6 +59,10 @@#define to_amdgpu_device (x) (container_of(x, struct amdgpu_device, pm.smu_i2c)) +static void smu_v13_0_0_get_od_setting_limits (struct smu_context *smu, +int od_feature_bit, +int32_t *min,int32_t *max); +#define FEATURE_MASK (feature) (1ULL << feature)#define SMC_DPM_FEATURE ( \ FEATURE_MASK(FEATURE_DPM_GFXCLK_BIT) | \
@@ -1061,8 +1065,35 @@ static bool smu_v13_0_0_is_od_feature_suPPTable_t *pptable = smu->smu_table.driver_pptable;const OverDriveLimits_t *const overdrive_upperlimits = &pptable->SkuTable.OverDriveLimitsBasicMax; +int32_t min_value, max_value; +bool feature_enabled; + +switch (od_feature_bit) { +case PP_OD_FEATURE_FAN_CURVE_BIT : + feature_enabled = !!(overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit)); +if (feature_enabled) { +smu_v13_0_0_get_od_setting_limits (smu,PP_OD_FEATURE_FAN_CURVE_TEMP , + &min_value, &max_value); +if (!min_value && !max_value) { + feature_enabled = false; + goto out; + } + +smu_v13_0_0_get_od_setting_limits (smu,PP_OD_FEATURE_FAN_CURVE_PWM , + &min_value, &max_value); +if (!min_value && !max_value) { + feature_enabled = false; + goto out; + } + } +break ; +default : + feature_enabled = !!(overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit)); +break ; + } -return overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit); +out: +return feature_enabled; } static void smu_v13_0_0_get_od_setting_limits(struct smu_context *smu,
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c +32 -1
@@ -59,6 +59,10 @@#define to_amdgpu_device (x) (container_of(x, struct amdgpu_device, pm.smu_i2c)) +static void smu_v13_0_7_get_od_setting_limits (struct smu_context *smu, +int od_feature_bit, +int32_t *min,int32_t *max); +#define FEATURE_MASK (feature) (1ULL << feature)#define SMC_DPM_FEATURE ( \ FEATURE_MASK(FEATURE_DPM_GFXCLK_BIT) | \
@@ -1050,8 +1054,35 @@ static bool smu_v13_0_7_is_od_feature_suPPTable_t *pptable = smu->smu_table.driver_pptable;const OverDriveLimits_t *const overdrive_upperlimits = &pptable->SkuTable.OverDriveLimitsBasicMax; +int32_t min_value, max_value; +bool feature_enabled; + +switch (od_feature_bit) { +case PP_OD_FEATURE_FAN_CURVE_BIT : + feature_enabled = !!(overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit)); +if (feature_enabled) { +smu_v13_0_7_get_od_setting_limits (smu,PP_OD_FEATURE_FAN_CURVE_TEMP , + &min_value, &max_value); +if (!min_value && !max_value) { + feature_enabled = false; + goto out; + } + +smu_v13_0_7_get_od_setting_limits (smu,PP_OD_FEATURE_FAN_CURVE_PWM , + &min_value, &max_value); +if (!min_value && !max_value) { + feature_enabled = false; + goto out; + } + } +break ; +default : + feature_enabled = !!(overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit)); +break ; + } -return overdrive_upperlimits->FeatureCtrlMask & (1U << od_feature_bit); +out: +return feature_enabled; } static void smu_v13_0_7_get_od_setting_limits(struct smu_context *smu,
Re: [PATCH 6.19 001/311] drm/amd/pm: disable OD_FAN_CURVE if temp or pwm range invalid for smu v13
Quoted 7 lines · Greg Kroah-Hartman
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yang Wang <[email protected]>
[ Upstream commit
3e6dd28a11083e83e11a284d99fcc9eb748c321c]
This appears to break 6.19.12 wrt fan speed on Radeon Pro W7700:
https://bugzilla.suse.com/show_bug.cgi?id=1263854
7.0 is broken the same way.
They say:
Quoted 44 lines
As mentioned in the summary, lact fails to control the fan speed on my AMD Radeon PRO W7700 graphic card. It worked perfectly until kernel 6.19.11 but failed after upgrading to kernel 6.19.12 and also fails with actual kernel 7.0.2.
I assume the problem is related to the following kernel commit to kernel 6.19.12:
commit
9b96266a2d469ca6576fd0a071a48e71a9436686Author: Yang Wang <[email protected]> Date: Wed Apr 1 12:16:37 2026 -0400Since kernel 6.19.12 the "gpu_od"-Folder under
/sys/class/drm/card1/device/does no longer exist, so lactd fails to read/write data within that folder and beyond.
My problem is that the 'sensors' utility reports high memory temperatures on my W7700. Even when idle the memory stays above 75°C and and rises up to 102°C when watching an AV1-encoded movie.
The fan is now controlled solely by the Radeon firmware. The fan runs at ~600 rpm (30%) and does not speed up when the memory temperature approaches the critical value of 105°C.
The current situation, with temperatures running very high, is likely to have a negative impact on the graphics card's lifespan.
# sensors amdgpu-pci-e300 amdgpu-pci-e300 Adapter: PCI adapter vddgfx: 179.00 mV fan1: 596 RPM (min = 0 RPM, max = 5300 RPM) edge: +63.0°C (crit = +100.0°C, hyst = -273.1°C) (emerg = +105.0°C) junction: +70.0°C (crit = +105.0°C, hyst = -273.1°C) (emerg = +110.0°C) mem: +84.0°C (crit = +105.0°C, hyst = -273.1°C) <=== idle+) (emerg = +110.0°C) PPT: 49.00 W (cap = 150.00 W) pwm1: 38% sclk: 15 MHz mclk: 772 MHz
Quoted 6 lines
+) i noticed that e.g. the firefox browser has a negative impact on the mlck value and the therefore the mem temperature.
The possibility to set the fan min to 900-1000 rpm with lact has helped to keep the temperatures below 65°C when idle and below 85°C when playing an AV1-encoded movie.
Any ideas?
Quoted 22 lines
Forcibly disable the
OD_FAN_CURVEfeature when temperature or PWM range is invalid, otherwise PMFW will reject this configuration on smu v13.0.xexample:
$ sudo cat /sys/bus/pci/devices/<BDF>/gpu_od/fan_ctrl/fan_curve
OD_FAN_CURVE:
0: 0C 0%
1: 0C 0%
2: 0C 0%
3: 0C 0%
4: 0C 0%OD_RANGE:FAN_CURVE(hotspot temp): 0C 0CFAN_CURVE(fan speed): 0% 0%$ echo "0 50 40" | sudo tee fan_curvekernel log:
[ 756.442527] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) must be within [0, 0]! [ 777.345800] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) must be within [0, 0]!
Quoted 9 lines
Signed-off-by Yang Wang <[email protected]>Acked-by Alex Deucher <[email protected]>Signed-off-by Alex Deucher <[email protected]>(cherry picked from commit 470891606c5a97b1d0d937e0aa67a3bed9fcb056)[ adapted forward declaration placement to existing FEATURE_MASK macro ]Signed-off-by Sasha Levin <[email protected]>Signed-off-by Greg Kroah-Hartman <[email protected]>
thanks,
Signature · 2 lines
js suse labs
Greg Kroah-Hartman
maintainerRe: [PATCH 6.19 001/311] drm/amd/pm: disable OD_FAN_CURVE if temp or pwm range invalid for smu v13
Quoted 5 lines · Jiri Slaby
Quoted 4 lines · Greg Kroah-Hartman
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
Quoted 8 lines
Quoted 3 lines
From: Yang Wang <[email protected]>
[ Upstream commit
3e6dd28a11083e83e11a284d99fcc9eb748c321c]This appears to break 6.19.12 wrt fan speed on Radeon Pro W7700:
https://bugzilla.suse.com/show_bug.cgi?id=12638547.0 is broken the same way.
I am guessing that 7.1-rc2 is also broken this way?
thanks,
greg k-h
RE: [PATCH 6.19 001/311] drm/amd/pm: disable OD_FAN_CURVE if temp or pwm range invalid for smu v13
In reply to Jiri SlabyAMD General
Quoted 75 lines
-----Original Message-----
From: Jiri Slaby <[email protected]>
Sent: Monday, May 4, 2026 14:16
To: Greg Kroah-Hartman <[email protected]>; [email protected]
Cc: [email protected]; Wang, Yang(Kevin) <[email protected]>; Deucher, Alexander <[email protected]>; Sasha Levin <[email protected]>
Subject: Re: [PATCH 6.19 001/311] drm/amd/pm: disableOD_FAN_CURVEif temp or pwm range invalid for smu v13Quoted 7 lines · Greg Kroah-Hartman
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yang Wang <[email protected]>
[ Upstream commit
3e6dd28a11083e83e11a284d99fcc9eb748c321c]This appears to break 6.19.12 wrt fan speed on Radeon Pro W7700:
https://bugzilla.suse.com/show_bug.cgi?id=12638547.0 is broken the same way.
They say:
Quoted 50 lines
As mentioned in the summary, lact fails to control the fan speed on my AMD Radeon PRO W7700 graphic card. It worked perfectly until kernel 6.19.11 but failed after upgrading to kernel 6.19.12 and also fails with actual kernel 7.0.2.
I assume the problem is related to the following kernel commit to kernel 6.19.12:
commit
9b96266a2d469ca6576fd0a071a48e71a9436686Author: Yang Wang <[email protected]> Date: Wed Apr 1 12:16:37 2026 -0400Since kernel 6.19.12 the "gpu_od"-Folder under
/sys/class/drm/card1/device/does no longer exist, so lactd fails to read/write data within that folder and beyond.
My problem is that the 'sensors' utility reports high memory temperatures on my W7700. Even when idle the memory stays above 75°C and and rises up to 102°C when watching an AV1-encoded movie.
The fan is now controlled solely by the Radeon firmware. The fan runs at ~600 rpm (30%) and does not speed up when the memory temperature approaches the critical value of 105°C.
The current situation, with temperatures running very high, is likely to have a negative impact on the graphics card's lifespan.
# sensors amdgpu-pci-e300 amdgpu-pci-e300 Adapter: PCI adapter vddgfx: 179.00 mV fan1: 596 RPM (min = 0 RPM, max = 5300 RPM) edge: +63.0°C (crit = +100.0°C, hyst = -273.1°C) (emerg = +105.0°C) junction: +70.0°C (crit = +105.0°C, hyst = -273.1°C) (emerg = +110.0°C) mem: +84.0°C (crit = +105.0°C, hyst = -273.1°C) <=== idle+) (emerg = +110.0°C) PPT: 49.00 W (cap = 150.00 W) pwm1: 38% sclk: 15 MHz mclk: 772 MHz(quoted diff) +2
-0+) i noticed that e.g. the firefox browser has a negative impact on +themlck value and the therefore the mem temperature.
Quoted 6 lines
Quoted 3 lines
The possibility to set the fan min to 900-1000 rpm with lact has helped to keep the temperatures below 65°C when idle and below 85°C when playing an AV1-encoded movie.
Any ideas?
There is a known issue here:
https://github.com/ROCm/amdgpu/issues/208
The amdgpu KMD will disable the gpu_od feature if the temperature range or PWM range is invalid. .e.g. min/max == 0, It may cause the SMU FW to configure parameters incorrectly.
Please check what the OD_RANGE shows on your card when using the older kernel.
Best Regards,
Kevin
Quoted 46 lines
Quoted 23 lines
OD_RANGE:FAN_CURVE(hotspot temp): 0C 0CFAN_CURVE(fan speed): 0% 0%Forcibly disable the
OD_FAN_CURVEfeature when temperature or PWM range is invalid, otherwise PMFW will reject this configuration on smu v13.0.xexample:
$ sudo cat /sys/bus/pci/devices/<BDF>/gpu_od/fan_ctrl/fan_curve
OD_FAN_CURVE:
0: 0C 0%
1: 0C 0%
2: 0C 0%
3: 0C 0%
4: 0C 0%OD_RANGE:FAN_CURVE(hotspot temp): 0C 0CFAN_CURVE(fan speed): 0% 0%Quoted 4 lines
$ echo "0 50 40" | sudo tee fan_curvekernel log:
[ 756.442527] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) mustbe within [0, 0]!
Quoted 1 line
[ 777.345800] amdgpu 0000:03:00.0: amdgpu: Fan curve temp setting(50) mustbe within [0, 0]!
Quoted 11 lines
Signed-off-by Yang Wang <[email protected]>Acked-by Alex Deucher <[email protected]>Signed-off-by Alex Deucher <[email protected]> (cherry pickedfrom commit
470891606c5a97b1d0d937e0aa67a3bed9fcb056)
Cc: [email protected]
[ adapted forward declaration placement to existingFEATURE_MASKmacro ]Signed-off-by Sasha Levin <[email protected]>Signed-off-by Greg Kroah-Hartman <[email protected]>thanks,
--
js
suse labs
Greg Kroah-Hartman
maintainerPATCH 2/311 net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Willem de Bruijn <[email protected]>
[ Upstream commit c4336a07eb6b2526dc2b62928b5104b41a7f81f5 ]
NETIF_F_IPV6_CSUM only advertises support for checksum offload of packets without IPv6 extension headers. Packets with extension headers must fall back onto software checksumming. Since TSO depends on checksum offload, those must revert to GSO.
The below commit introduces that fallback. It always checks network header length. For tunneled packets, the inner header length must be checked instead. Extend the check accordingly.
A special case is tunneled packets without inner IP protocol. Such as RFC 6951 SCTP in UDP. Those are not standard IPv6 followed by transport header either, so also must revert to the software GSO path.
--- net/core/dev.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-)
net/core/dev.c +17 -5
@@ -3763,6 +3763,22 @@ static netdev_features_t dflt_features_creturn vlan_features_check (skb, features); } +static bool skb_gso_has_extension_hdr (const struct sk_buff *skb) +{ +if (!skb->encapsulation) +return ((skb_shinfo (skb)->gso_type &SKB_GSO_TCPV6 || + (skb_shinfo (skb)->gso_type &SKB_GSO_UDP_L4 && +vlan_get_protocol (skb) ==htons (ETH_P_IPV6 ))) && +skb_transport_header_was_set (skb) && +skb_network_header_len (skb) !=sizeof (struct ipv6hdr )); +else +return (!skb_inner_network_header_was_set (skb) || + ((skb_shinfo (skb)->gso_type &SKB_GSO_TCPV6 || + (skb_shinfo (skb)->gso_type &SKB_GSO_UDP_L4 && +inner_ip_hdr (skb)->version ==6 )) && +skb_inner_network_header_len (skb) !=sizeof (struct ipv6hdr ))); +} +static netdev_features_t gso_features_check (const struct sk_buff *skb,struct net_device *dev,netdev_features_t features)
@@ -3810,11 +3826,7 @@ static netdev_features_t gso_features_ch* so neither does TSO that depends on it. */ if (features &NETIF_F_IPV6_CSUM && - (skb_shinfo (skb)->gso_type &SKB_GSO_TCPV6 || - (skb_shinfo (skb)->gso_type &SKB_GSO_UDP_L4 && -vlan_get_protocol (skb) ==htons (ETH_P_IPV6 ))) && -skb_transport_header_was_set (skb) && -skb_network_header_len (skb) !=sizeof (struct ipv6hdr ) && +skb_gso_has_extension_hdr (skb) && !ipv6_has_hopopt_jumbo (skb)) features &= ~(NETIF_F_IPV6_CSUM |NETIF_F_TSO6 |NETIF_F_GSO_UDP_L4 );
Greg Kroah-Hartman
maintainerPATCH 3/311 net: mana: fix use-after-free in add_adev() error path
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Guangshuo Li <[email protected]>
[ Upstream commit c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f ]
If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev).
The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free.
Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().
--- drivers/net/ethernet/microsoft/mana/mana_en.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/net/ethernet/microsoft/mana/mana_en.c +4 -2
@@ -3376,6 +3376,7 @@ static int add_adev(struct gdma_dev *gd,struct auxiliary_device *adev;struct mana_adev *madev;int ret; +int id; madev =kzalloc (sizeof (*madev),GFP_KERNEL );if (!madev)
@@ -3385,7 +3386,8 @@ static int add_adev(struct gdma_dev *gd, ret =mana_adev_idx_alloc ();if (ret <0 ) goto idx_fail; - adev->id = ret; + id = ret; + adev->id = id; adev->name = name; adev->dev.parent = gd->gdma_context->dev;
@@ -3411,7 +3413,7 @@ add_fail:auxiliary_device_uninit (adev); init_fail: -mana_adev_idx_free (adev->id); +mana_adev_idx_free (id); idx_fail:kfree (madev);
Greg Kroah-Hartman
maintainerPATCH 4/311 scsi: target: file: Use kzalloc_flex for aio_cmd
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thinh Nguyen <[email protected]>
[ Upstream commit 01f784fc9d0ab2a6dac45ee443620e517cb2a19b ]
The target_core_file doesn't initialize the aio_cmd->iocb for the ki_write_stream. When a write command fd_execute_rw_aio() is executed, we may get a bogus ki_write_stream value, causing unintended write failure status when checking iocb->ki_write_stream > max_write_streams in the block device.
Let's just use kzalloc_flex when allocating the aio_cmd and let ki_write_stream=0 to fix this issue.
--- drivers/target/target_core_file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/target/target_core_file.c +1 -1
@@ -276,7 +276,7 @@ fd_execute_rw_aio(struct se_cmd *cmd, stssize_t len =0 ;int ret =0 , i; - aio_cmd =kmalloc (struct_size (aio_cmd, bvecs, sgl_nents),GFP_KERNEL ); + aio_cmd =kzalloc (struct_size (aio_cmd, bvecs, sgl_nents),GFP_KERNEL );if (!aio_cmd)return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE ;
Greg Kroah-Hartman
maintainerPATCH 5/311 scsi: target: tcm_loop: Drain commands in target_reset handler
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Josef Bacik <[email protected]>
[ Upstream commit 1333eee56cdf3f0cf67c6ab4114c2c9e0a952026 ]
tcm_loop_target_reset() violates the SCSI EH contract: it returns SUCCESS without draining any in-flight commands. The SCSI EH documentation (scsi_eh.rst) requires that when a reset handler returns SUCCESS the driver has made lower layers "forget about timed out scmds" and is ready for new commands. Every other SCSI LLD (virtio_scsi, mpt3sas, ipr, scsi_debug, mpi3mr) enforces this by draining or completing outstanding commands before returning SUCCESS.
Because tcm_loop_target_reset() doesn't drain, the SCSI EH reuses in-flight scsi_cmnd structures for recovery commands (e.g. TUR) while the target core still has async completion work queued for the old se_cmd. The memset in queuecommand zeroes se_lun and lun_ref_active, causing transport_lun_remove_cmd() to skip its percpu_ref_put(). The leaked LUN reference prevents transport_clear_lun_ref() from completing, hanging configfs LUN unlink forever in D-state:
INFO: task rm:264 blocked for more than 122 seconds. rm D 0 264 258 0x00004000 Call Trace: __schedule+0x3d0/0x8e0 schedule+0x36/0xf0 transport_clear_lun_ref+0x78/0x90 [target_core_mod] core_tpg_remove_lun+0x28/0xb0 [target_core_mod] target_fabric_port_unlink+0x50/0x60 [target_core_mod] configfs_unlink+0x156/0x1f0 [configfs] vfs_unlink+0x109/0x290 do_unlinkat+0x1d5/0x2d0
Fix this by making tcm_loop_target_reset() actually drain commands:
1. Issue TMR_LUN_RESET via tcm_loop_issue_tmr() to drain all commands that the target core knows about (those not yet CMD_T_COMPLETE).
2. Use blk_mq_tagset_busy_iter() to iterate all started requests and flush_work() on each se_cmd — this drains any deferred completion work for commands that already had CMD_T_COMPLETE set before the TMR (which the TMR skips via __target_check_io_state()). This is the same pattern used by mpi3mr, scsi_debug, and libsas to drain outstanding commands during reset.
--- drivers/target/loopback/tcm_loop.c | 52 ++++++++++++++++++++++++++++++++----- 1 file changed, 46 insertions(+), 6 deletions(-)
drivers/target/loopback/tcm_loop.c +46 -6
@@ -26,6 +26,7 @@#include <linux/slab.h> #include <linux/types.h> #include <linux/configfs.h> +#include <linux/blk-mq.h> #include <scsi/scsi.h> #include <scsi/scsi_tcq.h> #include <scsi/scsi_host.h>
@@ -268,15 +269,27 @@ static int tcm_loop_device_reset(structreturn (ret ==TMR_FUNCTION_COMPLETE ) ?SUCCESS :FAILED ; } +static bool tcm_loop_flush_work_iter (struct request *rq,void *data) +{ +struct scsi_cmnd *sc =blk_mq_rq_to_pdu (rq); +struct tcm_loop_cmd *tl_cmd =scsi_cmd_priv (sc); +struct se_cmd *se_cmd = &tl_cmd->tl_se_cmd; + +flush_work (&se_cmd->work); +return true; +} +static int tcm_loop_target_reset (struct scsi_cmnd *sc) {struct tcm_loop_hba *tl_hba;struct tcm_loop_tpg *tl_tpg; +struct Scsi_Host *sh = sc->device->host; +int ret;/* * Locate the tcm_loop_hba_t pointer */ - tl_hba = *(struct tcm_loop_hba **)shost_priv (sc->device->host); + tl_hba = *(struct tcm_loop_hba **)shost_priv (sh);if (!tl_hba) {pr_err ("Unable to perform device reset without active I_T Nexus\n" );return FAILED ;
@@ -285,11 +298,38 @@ static int tcm_loop_target_reset(struct* Locate the tl_tpg pointer from TargetID in sc->device->id */ tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; -if (tl_tpg) { - tl_tpg->tl_transport_status =TCM_TRANSPORT_ONLINE ; -return SUCCESS ; - } -return FAILED ; +if (!tl_tpg) +return FAILED ; + +/* +* Issue a LUN_RESET to drain all commands that the target core +* knows about. This handles commands not yet marked CMD_T_COMPLETE. +*/ + ret =tcm_loop_issue_tmr (tl_tpg, sc->device->lun,0 ,TMR_LUN_RESET ); +if (ret !=TMR_FUNCTION_COMPLETE ) +return FAILED ; + +/* +* Flush any deferred target core completion work that may still be +* queued. Commands that already had CMD_T_COMPLETE set before the TMR +* are skipped by the TMR drain, but their async completion work +* (transport_lun_remove_cmd → percpu_ref_put, release_cmd → scsi_done) +* may still be pending in target_completion_wq. +* +* The SCSI EH will reuse in-flight scsi_cmnd structures for recovery +* commands (e.g. TUR) immediately after this handler returns SUCCESS — +* if deferred work is still pending, the memset in queuecommand would +* zero the se_cmd while the work accesses it, leaking the LUN +* percpu_ref and hanging configfs unlink forever. +* +* Use blk_mq_tagset_busy_iter() to find all started requests and +* flush_work() on each — the same pattern used by mpi3mr, scsi_debug, +* and other SCSI drivers to drain outstanding commands during reset. +*/ +blk_mq_tagset_busy_iter (&sh->tag_set, tcm_loop_flush_work_iter,NULL ); + + tl_tpg->tl_transport_status =TCM_TRANSPORT_ONLINE ; +return SUCCESS ; }static const struct scsi_host_template tcm_loop_driver_template = {
Greg Kroah-Hartman
maintainerPATCH 6/311 xfs: factor out xfs_attr3_node_entry_remove
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li <[email protected]>
[ Upstream commit ce4e789cf3561c9fac73cc24445bfed9ea0c514b ]
Factor out wrapper xfs_attr3_node_entry_remove function, which exported for external use.
Stable-dep-of: b854e1c4eff3 ("xfs: close crash window in attr dabtree inactivation")
--- fs/xfs/libxfs/xfs_da_btree.c | 53 ++++++++++++++++++++++++++++++++++--------- fs/xfs/libxfs/xfs_da_btree.h | 2 + 2 files changed, 44 insertions(+), 11 deletions(-)
fs/xfs/libxfs/xfs_da_btree.c +42 -11
@@ -1506,21 +1506,20 @@ xfs_da3_fixhashpath( }/* -* Remove an entry from an intermediate node. +* Internal implementation to remove an entry from an intermediate node. */ STATIC void -xfs_da3_node_remove ( -struct xfs_da_state *state, -struct xfs_da_state_blk *drop_blk) +__xfs_da3_node_remove ( +struct xfs_trans *tp, +struct xfs_inode *dp, +struct xfs_da_geometry *geo, +struct xfs_da_state_blk *drop_blk) {struct xfs_da_intnode *node;struct xfs_da3_icnode_hdr nodehdr;struct xfs_da_node_entry *btree;int index;int tmp; -struct xfs_inode *dp = state->args->dp; - -trace_xfs_da_node_remove (state->args); node = drop_blk->bp->b_addr;xfs_da3_node_hdr_from_disk (dp->i_mount, &nodehdr, node);
@@ -1536,17 +1535,17 @@ xfs_da3_node_remove( tmp = nodehdr.count - index -1 ; tmp *= (uint )sizeof (xfs_da_node_entry_t);memmove (&btree[index], &btree[index +1 ], tmp); -xfs_trans_log_buf (state->args->trans, drop_blk->bp, +xfs_trans_log_buf (tp, drop_blk->bp,XFS_DA_LOGRANGE (node, &btree[index], tmp)); index = nodehdr.count -1 ; }memset (&btree[index],0 ,sizeof (xfs_da_node_entry_t)); -xfs_trans_log_buf (state->args->trans, drop_blk->bp, +xfs_trans_log_buf (tp, drop_blk->bp,XFS_DA_LOGRANGE (node, &btree[index],sizeof (btree[index]))); nodehdr.count -=1 ;xfs_da3_node_hdr_to_disk (dp->i_mount, node, &nodehdr); -xfs_trans_log_buf (state->args->trans, drop_blk->bp, -XFS_DA_LOGRANGE (node, &node->hdr, state->args->geo->node_hdr_size)); +xfs_trans_log_buf (tp, drop_blk->bp, +XFS_DA_LOGRANGE (node, &node->hdr, geo->node_hdr_size));/* * Copy the last hash value from the block to propagate upwards.
@@ -1555,6 +1554,38 @@ xfs_da3_node_remove( }/* +* Remove an entry from an intermediate node. +*/ +STATIC void +xfs_da3_node_remove ( +struct xfs_da_state *state, +struct xfs_da_state_blk *drop_blk) +{ +trace_xfs_da_node_remove (state->args); + +__xfs_da3_node_remove (state->args->trans, state->args->dp, + state->args->geo, drop_blk); +} + +/* +* Remove an entry from an intermediate attr node at the specified index. +*/ +void +xfs_attr3_node_entry_remove ( +struct xfs_trans *tp, +struct xfs_inode *dp, +struct xfs_buf *bp, +int index) +{ +struct xfs_da_state_blk blk = { + .index = index, + .bp = bp, + }; + +__xfs_da3_node_remove (tp, dp, dp->i_mount->m_attr_geo, &blk); +} + +/* * Unbalance the elements between two intermediate nodes, * move all Btree elements from one node into another. */
fs/xfs/libxfs/xfs_da_btree.h +2 -0
@@ -184,6 +184,8 @@ int xfs_da3_split(xfs_da_state_t *state)int xfs_da3_join (xfs_da_state_t *state);void xfs_da3_fixhashpath (struct xfs_da_state *state,struct xfs_da_state_path *path_to_to_fix); +void xfs_attr3_node_entry_remove (struct xfs_trans *tp,struct xfs_inode *dp, +struct xfs_buf *bp,int index);/* * Routines used for finding things in the Btree.
Greg Kroah-Hartman
maintainerPATCH 7/311 xfs: factor out xfs_attr3_leaf_init
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li <[email protected]>
[ Upstream commit e65bb55d7f8c2041c8fdb73cd29b0b4cad4ed847 ]
Factor out wrapper xfs_attr3_leaf_init function, which exported for external use.
Stable-dep-of: b854e1c4eff3 ("xfs: close crash window in attr dabtree inactivation")
--- fs/xfs/libxfs/xfs_attr_leaf.c | 22 ++++++++++++++++++++++ fs/xfs/libxfs/xfs_attr_leaf.h | 3 +++ 2 files changed, 25 insertions(+)
fs/xfs/libxfs/xfs_attr_leaf.c +22 -0
@@ -1317,6 +1317,28 @@ xfs_attr3_leaf_create( }/* +* Reinitialize an existing attr fork block as an empty leaf, and attach +* the buffer to tp. +*/ +int +xfs_attr3_leaf_init ( +struct xfs_trans *tp, +struct xfs_inode *dp, +xfs_dablk_t blkno) +{ +struct xfs_buf *bp =NULL ; +struct xfs_da_args args = { + .trans = tp, + .dp = dp, + .owner = dp->i_ino, + .geo = dp->i_mount->m_attr_geo, + }; + +ASSERT (tp !=NULL ); + +return xfs_attr3_leaf_create (&args, blkno, &bp); +} +/* * Split the leaf node, rebalance, then add the new entry. * * Returns 0 if the entry was added, 1 if a further split is needed or a
fs/xfs/libxfs/xfs_attr_leaf.h +3 -0
@@ -86,6 +86,9 @@ int xfs_attr3_leaf_list_int(struct xfs_b/* * Routines used for shrinking the Btree. */ + +int xfs_attr3_leaf_init (struct xfs_trans *tp,struct xfs_inode *dp, +xfs_dablk_t blkno);int xfs_attr3_leaf_toosmall (struct xfs_da_state *state,int *retval); void xfs_attr3_leaf_unbalance(struct xfs_da_state *state, struct xfs_da_state_blk *drop_blk,
Greg Kroah-Hartman
maintainerPATCH 8/311 xfs: close crash window in attr dabtree inactivation
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li <[email protected]>
[ Upstream commit b854e1c4eff3473b6d3a9ae74129ac5c48bc0b61 ]
When inactivating an inode with node-format extended attributes, xfs_attr3_node_inactive() invalidates all child leaf/node blocks via xfs_trans_binval(), but intentionally does not remove the corresponding entries from their parent node blocks. The implicit assumption is that xfs_attr_inactive() will truncate the entire attr fork to zero extents afterwards, so log recovery will never reach the root node and follow those stale pointers.
However, if a log shutdown occurs after the leaf/node block cancellations commit but before the attr bmap truncation commits, this assumption breaks. Recovery replays the attr bmap intact (the inode still has attr fork extents), but suppresses replay of all cancelled leaf/node blocks, maybe leaving them as stale data on disk. On the next mount, xlog_recover_process_iunlinks() retries inactivation and attempts to read the root node via the attr bmap. If the root node was not replayed, reading the unreplayed root block triggers a metadata verification failure immediately; if it was replayed, following its child pointers to unreplayed child blocks triggers the same failure:
XFS (pmem0): Metadata corruption detected at
xfs_da3_node_read_verify+0x53/0x220, xfs_da3_node block 0x78 XFS (pmem0): Unmount and run xfs_repair XFS (pmem0): First 128 bytes of corrupted metadata buffer: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (pmem0): metadata I/O error in "xfs_da_read_buf+0x104/0x190" at daddr 0x78 len 8 error 117
Fix this in two places:
In xfs_attr3_node_inactive(), after calling xfs_trans_binval() on a child block, immediately remove the entry that references it from the parent node in the same transaction. This eliminates the window where the parent holds a pointer to a cancelled block. Once all children are removed, the now-empty root node is converted to a leaf block within the same transaction. This node-to-leaf conversion is necessary for crash safety. If the system shutdown after the empty node is written to the log but before the second-phase bmap truncation commits, log recovery will attempt to verify the root block on disk. xfs_da3_node_verify() does not permit a node block with count == 0; such a block will fail verification and trigger a metadata corruption shutdown. on the other hand, leaf blocks are allowed to have this transient state.
In xfs_attr_inactive(), split the attr fork truncation into two explicit phases. First, truncate all extents beyond the root block (the child extents whose parent references have already been removed above). Second, invalidate the root block and truncate the attr bmap to zero in a single transaction. The two operations in the second phase must be
atomic: as long as the attr bmap has any non-zero length, recovery can follow it to the root block, so the root block invalidation must commit together with the bmap-to-zero truncation.
--- fs/xfs/xfs_attr_inactive.c | 95 +++++++++++++++++++++++++++------------------ 1 file changed, 57 insertions(+), 38 deletions(-)
fs/xfs/xfs_attr_inactive.c +57 -38
@@ -140,7 +140,7 @@ xfs_attr3_node_inactive(xfs_daddr_t parent_blkno, child_blkno;struct xfs_buf *child_bp;struct xfs_da3_icnode_hdr ichdr; -int error, i; +int error;/* * Since this code is recursive (gasp!) we must protect ourselves.
@@ -152,7 +152,7 @@ xfs_attr3_node_inactive(return -EFSCORRUPTED ; } -xfs_da3_node_hdr_from_disk (dp->i_mount, &ichdr, bp->b_addr); +xfs_da3_node_hdr_from_disk (mp, &ichdr, bp->b_addr); parent_blkno =xfs_buf_daddr (bp);if (!ichdr.count) {xfs_trans_brelse (*trans, bp);
@@ -167,7 +167,7 @@ xfs_attr3_node_inactive(* over the leaves removing all of them. If this is higher up * in the tree, recurse downward. */ -for (i =0 ; i < ichdr.count; i++) { +while (ichdr.count >0 ) {/* * Read the subsidiary block to see what we have to work with. * Don't do this in a transaction. This is a depth-first
@@ -218,29 +218,32 @@ xfs_attr3_node_inactive(xfs_trans_binval (*trans, child_bp); child_bp =NULL ; + error =xfs_da3_node_read_mapped (*trans, dp, + parent_blkno, &bp,XFS_ATTR_FORK ); +if (error) +return error; +/* -* If we're not done, re-read the parent to get the next -* child block number. +* Remove entry from parent node, prevents being indexed to. */ -if (i +1 < ichdr.count) { -struct xfs_da3_icnode_hdr phdr; +xfs_attr3_node_entry_remove (*trans, dp, bp,0 ); - error =xfs_da3_node_read_mapped (*trans, dp, - parent_blkno, &bp,XFS_ATTR_FORK ); +xfs_da3_node_hdr_from_disk (mp, &ichdr, bp->b_addr); + bp =NULL ; + +if (ichdr.count >0 ) { +/* +* If we're not done, get the next child block number. +*/ + child_fsb =be32_to_cpu (ichdr.btree[0 ].before); + +/* +* Atomically commit the whole invalidate stuff. +*/ + error =xfs_trans_roll_inode (trans, dp);if (error)return error; -xfs_da3_node_hdr_from_disk (dp->i_mount, &phdr, - bp->b_addr); - child_fsb =be32_to_cpu (phdr.btree[i +1 ].before); -xfs_trans_brelse (*trans, bp); - bp =NULL ; } -/* -* Atomically commit the whole invalidate stuff. -*/ - error =xfs_trans_roll_inode (trans, dp); -if (error) -return error; }return 0 ;
@@ -257,10 +260,8 @@ xfs_attr3_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp) { - struct xfs_mount *mp = dp->i_mount; struct xfs_da_blkinfo *info;struct xfs_buf *bp; -xfs_daddr_t blkno;int error;/*
@@ -272,7 +273,6 @@ xfs_attr3_root_inactive( error =xfs_da3_node_read (*trans, dp,0 , &bp,XFS_ATTR_FORK );if (error)return error; - blkno =xfs_buf_daddr (bp);/* * Invalidate the tree, even if the "tree" is only a single leaf block.
@@ -283,10 +283,26 @@ xfs_attr3_root_inactive(case cpu_to_be16 (XFS_DA_NODE_MAGIC ):case cpu_to_be16 (XFS_DA3_NODE_MAGIC ): error =xfs_attr3_node_inactive (trans, dp, bp,1 ); +/* +* Empty root node block are not allowed, convert it to leaf. +*/ +if (!error) + error =xfs_attr3_leaf_init (*trans, dp,0 ); +if (!error) + error =xfs_trans_roll_inode (trans, dp);break ;case cpu_to_be16 (XFS_ATTR_LEAF_MAGIC ):case cpu_to_be16 (XFS_ATTR3_LEAF_MAGIC ): error =xfs_attr3_leaf_inactive (trans, dp, bp); +/* +* Reinit the leaf before truncating extents so that a crash +* mid-truncation leaves an empty leaf rather than one with +* entries that may reference freed remote value blocks. +*/ +if (!error) + error =xfs_attr3_leaf_init (*trans, dp,0 ); +if (!error) + error =xfs_trans_roll_inode (trans, dp);break ;default :xfs_dirattr_mark_sick (dp,XFS_ATTR_FORK );
@@ -295,21 +311,6 @@ xfs_attr3_root_inactive(xfs_trans_brelse (*trans, bp);break ; } -if (error) -return error; - -/* -* Invalidate the incore copy of the root block. -*/ - error =xfs_trans_get_buf (*trans, mp->m_ddev_targp, blkno, -XFS_FSB_TO_BB (mp, mp->m_attr_geo->fsbcount),0 , &bp); -if (error) -return error; -xfs_trans_binval (*trans, bp);/* remove from cache */ -/* -* Commit the invalidate and start the next transaction. -*/ - error =xfs_trans_roll_inode (trans, dp);return error; }
@@ -328,6 +329,7 @@ xfs_attr_inactive( {struct xfs_trans *trans;struct xfs_mount *mp; +struct xfs_buf *bp;int lock_mode =XFS_ILOCK_SHARED ;int error =0 ;
@@ -363,10 +365,27 @@ xfs_attr_inactive(* removal below. */ if (dp->i_af.if_nextents >0 ) { +/* +* Invalidate and truncate all blocks but leave the root block. +*/ error =xfs_attr3_root_inactive (&trans, dp);if (error) goto out_cancel; + error =xfs_itruncate_extents (&trans, dp,XFS_ATTR_FORK , +XFS_FSB_TO_B (mp, mp->m_attr_geo->fsbcount)); +if (error) + goto out_cancel; + +/* +* Invalidate and truncate the root block and ensure that the +* operation is completed within a single transaction. +*/ + error =xfs_da_get_buf (trans, dp,0 , &bp,XFS_ATTR_FORK ); +if (error) + goto out_cancel; + +xfs_trans_binval (trans, bp); error =xfs_itruncate_extents (&trans, dp,XFS_ATTR_FORK ,0 );if (error) goto out_cancel;
Re: [PATCH 6.19 008/311] xfs: close crash window in attr dabtree inactivation
Quoted 65 lines · Greg Kroah-Hartman
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li <[email protected]>
[ Upstream commit
b854e1c4eff3473b6d3a9ae74129ac5c48bc0b61]When inactivating an inode with node-format extended attributes,
xfs_attr3_node_inactive()invalidates all child leaf/node blocks viaxfs_trans_binval(), but intentionally does not remove the corresponding entries from their parent node blocks. The implicit assumption is thatxfs_attr_inactive()will truncate the entire attr fork to zero extents afterwards, so log recovery will never reach the root node and follow those stale pointers.However, if a log shutdown occurs after the leaf/node block cancellations commit but before the attr bmap truncation commits, this assumption breaks. Recovery replays the attr bmap intact (the inode still has attr fork extents), but suppresses replay of all cancelled leaf/node blocks, maybe leaving them as stale data on disk. On the next mount,
xlog_recover_process_iunlinks()retries inactivation and attempts to read the root node via the attr bmap. If the root node was not replayed, reading the unreplayed root block triggers a metadata verification failure immediately; if it was replayed, following its child pointers to unreplayed child blocks triggers the same failure:XFS (pmem0): Metadata corruption detected at
xfs_da3_node_read_verify+0x53/0x220, xfs_da3_node block 0x78 XFS (pmem0): Unmount and run xfs_repair XFS (pmem0): First 128 bytes of corrupted metadata buffer: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (pmem0): metadata I/O error in "xfs_da_read_buf+0x104/0x190" at daddr 0x78 len 8 error 117Fix this in two places:
In
xfs_attr3_node_inactive(), after callingxfs_trans_binval()on a child block, immediately remove the entry that references it from the parent node in the same transaction. This eliminates the window where the parent holds a pointer to a cancelled block. Once all children are removed, the now-empty root node is converted to a leaf block within the same transaction. This node-to-leaf conversion is necessary for crash safety. If the system shutdown after the empty node is written to the log but before the second-phase bmap truncation commits, log recovery will attempt to verify the root block on disk.xfs_da3_node_verify()does not permit a node block with count == 0; such a block will fail verification and trigger a metadata corruption shutdown. on the other hand, leaf blocks are allowed to have this transient state.In
xfs_attr_inactive(), split the attr fork truncation into two explicit phases. First, truncate all extents beyond the root block (the child extents whose parent references have already been removed above). Second, invalidate the root block and truncate the attr bmap to zero in a single transaction. The two operations in the second phase must be
atomic: as long as the attr bmap has any non-zero length, recovery can follow it to the root block, so the root block invalidation must commit together with the bmap-to-zero truncation.
Quoted 8 lines
Fixes 1da177e4c3f4 ("Linux-2.6.12-rc2")Signed-off-by Long Li <[email protected]>Reviewed-by Darrick J. Wong <[email protected]>Signed-off-by Carlos Maiolino <[email protected]>Signed-off-by Sasha Levin <[email protected]>Signed-off-by Greg Kroah-Hartman <[email protected]>---
Hi, Greg
The current patch depends on upstream e942498385bf ("xfs: only assert new size for datafork during truncate extents"), otherwise, an assertion failure will be triggered during attr fork truncation.
The following four patches are in the same patch set:
b854e1c4eff3 xfs: close crash window in attr dabtree inactivation e65bb55d7f8c xfs: factor out xfs_attr3_leaf_init
ce4e789cf356 xfs: factor out xfs_attr3_node_entry_remove e942498385bf xfs: only assert new size for datafork during truncate extents
Thanks,
Long Li
Greg Kroah-Hartman
maintainerRe: [PATCH 6.19 008/311] xfs: close crash window in attr dabtree inactivation
Quoted 80 lines · Long Li
Quoted 65 lines · Greg Kroah-Hartman
6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li <[email protected]>
[ Upstream commit
b854e1c4eff3473b6d3a9ae74129ac5c48bc0b61]When inactivating an inode with node-format extended attributes,
xfs_attr3_node_inactive()invalidates all child leaf/node blocks viaxfs_trans_binval(), but intentionally does not remove the corresponding entries from their parent node blocks. The implicit assumption is thatxfs_attr_inactive()will truncate the entire attr fork to zero extents afterwards, so log recovery will never reach the root node and follow those stale pointers.However, if a log shutdown occurs after the leaf/node block cancellations commit but before the attr bmap truncation commits, this assumption breaks. Recovery replays the attr bmap intact (the inode still has attr fork extents), but suppresses replay of all cancelled leaf/node blocks, maybe leaving them as stale data on disk. On the next mount,
xlog_recover_process_iunlinks()retries inactivation and attempts to read the root node via the attr bmap. If the root node was not replayed, reading the unreplayed root block triggers a metadata verification failure immediately; if it was replayed, following its child pointers to unreplayed child blocks triggers the same failure:XFS (pmem0): Metadata corruption detected at
xfs_da3_node_read_verify+0x53/0x220, xfs_da3_node block 0x78 XFS (pmem0): Unmount and run xfs_repair XFS (pmem0): First 128 bytes of corrupted metadata buffer: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (pmem0): metadata I/O error in "xfs_da_read_buf+0x104/0x190" at daddr 0x78 len 8 error 117Fix this in two places:
In
xfs_attr3_node_inactive(), after callingxfs_trans_binval()on a child block, immediately remove the entry that references it from the parent node in the same transaction. This eliminates the window where the parent holds a pointer to a cancelled block. Once all children are removed, the now-empty root node is converted to a leaf block within the same transaction. This node-to-leaf conversion is necessary for crash safety. If the system shutdown after the empty node is written to the log but before the second-phase bmap truncation commits, log recovery will attempt to verify the root block on disk.xfs_da3_node_verify()does not permit a node block with count == 0; such a block will fail verification and trigger a metadata corruption shutdown. on the other hand, leaf blocks are allowed to have this transient state.In
xfs_attr_inactive(), split the attr fork truncation into two explicit phases. First, truncate all extents beyond the root block (the child extents whose parent references have already been removed above). Second, invalidate the root block and truncate the attr bmap to zero in a single transaction. The two operations in the second phase must be
atomic: as long as the attr bmap has any non-zero length, recovery can follow it to the root block, so the root block invalidation must commit together with the bmap-to-zero truncation.Quoted 8 lines
Fixes 1da177e4c3f4 ("Linux-2.6.12-rc2")Signed-off-by Long Li <[email protected]>Reviewed-by Darrick J. Wong <[email protected]>Signed-off-by Carlos Maiolino <[email protected]>Signed-off-by Sasha Levin <[email protected]>Signed-off-by Greg Kroah-Hartman <[email protected]>---
Hi, Greg
The current patch depends on upstream
e942498385bf("xfs: only assert new size for datafork during truncate extents"), otherwise, an assertion failure will be triggered during attr fork truncation.
Quoted 6 lines
The following four patches are in the same patch set:
b854e1c4eff3xfs: close crash window in attr dabtree inactivatione65bb55d7f8cxfs: factor outxfs_attr3_leaf_init
ce4e789cf356xfs: factor outxfs_attr3_node_entry_removee942498385bfxfs: only assert new size for datafork during truncate extents
Thanks for letting me know, I've now queued up the missing patch.
greg k-h
Greg Kroah-Hartman
maintainerPATCH 9/311 arm64/scs: Fix handling of advance_loc4
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pepper Gray <[email protected]>
[ Upstream commit d499e9627d70b1269020d59b95ed3e18bee6b8cd ]
DW_CFA_advance_loc4 is defined but no handler is implemented. Its CFA opcode defaults to EDYNSCS_INVALID_CFA_OPCODE triggering an error which wrongfully prevents modules from loading.
--- arch/arm64/kernel/pi/patch-scs.c | 8 ++++++++ 1 file changed, 8 insertions(+)
arch/arm64/kernel/pi/patch-scs.c +8 -0
@@ -192,6 +192,14 @@ static int scs_handle_fde_frame(const struct eh_frame *frame, size -=2 ;break ; +case DW_CFA_advance_loc4: + loc += *opcode++ * code_alignment_factor; + loc += (*opcode++ <<8 ) * code_alignment_factor; + loc += (*opcode++ <<16 ) * code_alignment_factor; + loc += (*opcode++ <<24 ) * code_alignment_factor; + size -=4 ; +break ; +case DW_CFA_def_cfa:case DW_CFA_offset_extended: size =skip_xleb128 (&opcode, size);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 10/311 HID: logitech-hidpp: Enable MX Master 4 over bluetooth
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Adrian Freund <[email protected]>
[ Upstream commit 70031e70ca15ede6a39db4d978e53a6cc720d454 ]
The Logitech MX Master 4 can be connected over bluetooth or through a Logitech Bolt receiver. This change adds support for non-standard HID features, such as high resolution scrolling when the mouse is connected over bluetooth.
Because no Logitech Bolt receiver driver exists yet those features won't be available when the mouse is connected through the receiver.
--- drivers/hid/hid-logitech-hidpp.c | 2 ++ 1 file changed, 2 insertions(+)
drivers/hid/hid-logitech-hidpp.c +2 -0
@@ -4668,6 +4668,8 @@ static const struct hid_device_id hidpp_devices[] = { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb038) }, {/* Slim Solar+ K980 Keyboard over Bluetooth */ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb391) }, + { /* MX Master 4 mouse over Bluetooth */ + HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb042) }, {} };
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 11/311 wifi: mac80211: check tdls flag in ieee80211_tdls_oper
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Deepanshu Kartikey <[email protected]>
[ Upstream commit 7d73872d949c488a1d7c308031d6a9d89b5e0a8b ]
When NL80211_TDLS_ENABLE_LINK is called, the code only checks if the station exists but not whether it is actually a TDLS station. This allows the operation to proceed for non-TDLS stations, causing unintended side effects like modifying channel context and HT protection before failing.
Add a check for sta->sta.tdls early in the ENABLE_LINK case, before any side effects occur, to ensure the operation is only allowed for actual TDLS peers.
--- net/mac80211/tdls.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/mac80211/tdls.c +1 -1
@@ -1449,7 +1449,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, } sta =sta_info_get (sdata, peer); -if (!sta) +if (!sta || !sta->sta.tdls)return -ENOLINK ;iee80211_tdls_recalc_chanctx (sdata, sta);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 12/311 HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Benoît Sevens <[email protected]>
[ Upstream commit 2f1763f62909ccb6386ac50350fa0abbf5bb16a9 ]
The wacom_intuos_bt_irq() function processes Bluetooth HID reports without sufficient bounds checking. A maliciously crafted short report can trigger an out-of-bounds read when copying data into the wacom structure.
Specifically, report 0x03 requires at least 22 bytes to safely read the processed data and battery status, while report 0x04 (which falls through to 0x03) requires 32 bytes.
Add explicit length checks for these report IDs and log a warning if a short report is received.
--- drivers/hid/wacom_wac.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
drivers/hid/wacom_wac.c +10 -0
@@ -1208,10 +1208,20 @@ static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)switch (data[0 ]) {case 0x04 : +if (len <32 ) { +dev_warn (wacom->pen_input->dev.parent, +"Report 0x04 too short: %zu bytes\n" , len); +break ; + }wacom_intuos_bt_process_data (wacom, data + i); i +=10 ; fallthrough;case 0x03 : +if (i ==1 && len <22 ) { +dev_warn (wacom->pen_input->dev.parent, +"Report 0x03 too short: %zu bytes\n" , len); +break ; + }wacom_intuos_bt_process_data (wacom, data + i); i +=10 ;wacom_intuos_bt_process_data (wacom, data + i);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 13/311 atm: lec: fix use-after-free in sock_def_readable()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Deepanshu Kartikey <[email protected]>
[ Upstream commit 922814879542c2e397b0e9641fd36b8202a8e555 ]
A race condition exists between lec_atm_close() setting priv->lecd to NULL and concurrent access to priv->lecd in send_to_lecd(), lec_handle_bridge(), and lec_atm_send(). When the socket is freed via RCU while another thread is still using it, a use-after-free occurs in sock_def_readable() when accessing the socket's wait queue.
The root cause is that lec_atm_close() clears priv->lecd without any synchronization, while callers dereference priv->lecd without any protection against concurrent teardown.
Fix this by converting priv->lecd to an RCU-protected pointer:
- Mark priv->lecd as __rcu in lec.h
- Use rcu_assign_pointer() in lec_atm_close() and lecd_attach() for safe pointer assignment
- Use rcu_access_pointer() for NULL checks that do not dereference the pointer in lec_start_xmit(), lec_push(), send_to_lecd() and lecd_attach()
- Use rcu_read_lock/rcu_dereference/rcu_read_unlock in send_to_lecd(), lec_handle_bridge() and lec_atm_send() to safely access lecd
- Use rcu_assign_pointer() followed by synchronize_rcu() in lec_atm_close() to ensure all readers have completed before proceeding. This is safe since lec_atm_close() is called from vcc_release() which holds lock_sock(), a sleeping lock.
- Remove the manual sk_receive_queue drain from lec_atm_close() since vcc_destroy_socket() already drains it after lec_atm_close() returns.
v2: Switch from spinlock + sock_hold/put approach to RCU to properly
fix the race. The v1 spinlock approach had two issues pointed out by Eric Dumazet:
1. priv->lecd was still accessed directly after releasing the lock instead of using a local copy.
2. The spinlock did not prevent packets being queued after lec_atm_close() drains sk_receive_queue since timer and workqueue paths bypass netif_stop_queue().
Note: Syzbot patch testing was attempted but the test VM terminated
unexpectedly with "Connection to localhost closed by remote host", likely due to a QEMU AHCI emulation issue unrelated to this fix. Compile testing with "make W=1 net/atm/lec.o" passes cleanly.
--- net/atm/lec.c | 72 +++++++++++++++++++++++++++++++++------------------ net/atm/lec.h | 2 +- 2 files changed, 48 insertions(+), 26 deletions(-)
net/atm/lec.c +47 -25
@@ -154,10 +154,19 @@ static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)/* 0x01 is topology change */ priv =netdev_priv (dev); -atm_force_charge (priv->lecd, skb2->truesize); - sk =sk_atm (priv->lecd); -skb_queue_tail (&sk->sk_receive_queue, skb2); - sk->sk_data_ready(sk); +struct atm_vcc *vcc; + +rcu_read_lock (); + vcc =rcu_dereference (priv->lecd); +if (vcc) { +atm_force_charge (vcc, skb2->truesize); + sk =sk_atm (vcc); +skb_queue_tail (&sk->sk_receive_queue, skb2); + sk->sk_data_ready (sk); + }else { +dev_kfree_skb (skb2); + } + rcu_read_unlock(); } }#endif /* IS_ENABLED(CONFIG_BRIDGE) */
@@ -216,7 +225,7 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,int is_rdesc;pr_debug ("called\n" ); -if (!priv->lecd) { +if (!rcu_access_pointer (priv->lecd)) {pr_info ("%s:No lecd attached\n" , dev->name); dev->stats.tx_errors++;netif_stop_queue (dev);
@@ -449,10 +458,19 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)break ; skb2->len =sizeof (struct atmlec_msg );skb_copy_to_linear_data (skb2, mesg,sizeof (*mesg)); -atm_force_charge (priv->lecd, skb2->truesize); - sk =sk_atm (priv->lecd); -skb_queue_tail (&sk->sk_receive_queue, skb2); - sk->sk_data_ready(sk); +struct atm_vcc *vcc; + +rcu_read_lock (); + vcc =rcu_dereference (priv->lecd); +if (vcc) { +atm_force_charge (vcc, skb2->truesize); + sk =sk_atm (vcc); +skb_queue_tail (&sk->sk_receive_queue, skb2); + sk->sk_data_ready (sk); + }else { +dev_kfree_skb (skb2); + } + rcu_read_unlock(); } }#endif /* IS_ENABLED(CONFIG_BRIDGE) */
@@ -468,23 +486,16 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)static void lec_atm_close (struct atm_vcc *vcc) { -struct sk_buff *skb;struct net_device *dev = (struct net_device *)vcc->proto_data;struct lec_priv *priv =netdev_priv (dev); - priv->lecd =NULL ; +rcu_assign_pointer (priv->lecd,NULL ); +synchronize_rcu ();/* Do something needful? */ netif_stop_queue (dev);lec_arp_destroy (priv); -if (skb_peek (&sk_atm (vcc)->sk_receive_queue)) -pr_info ("%s closing with messages pending\n" , dev->name); -while ((skb =skb_dequeue (&sk_atm (vcc)->sk_receive_queue))) { -atm_return (vcc, skb->truesize); -dev_kfree_skb (skb); - } -pr_info ("%s: Shut down!\n" , dev->name);module_put (THIS_MODULE ); }
@@ -510,12 +521,14 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type, const unsigned char *mac_addr, const unsigned char *atm_addr, struct sk_buff *data) { + struct atm_vcc *vcc;struct sock *sk;struct sk_buff *skb;struct atmlec_msg *mesg; -if (!priv || !priv->lecd) +if (!priv || !rcu_access_pointer (priv->lecd))return -1 ; + skb =alloc_skb (sizeof (struct atmlec_msg ),GFP_ATOMIC );if (!skb)return -1 ;
@@ -532,18 +545,27 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,if (atm_addr)memcpy (&mesg->content.normal.atm_addr, atm_addr,ATM_ESA_LEN ); -atm_force_charge (priv->lecd, skb->truesize); - sk =sk_atm (priv->lecd); +rcu_read_lock (); + vcc =rcu_dereference (priv->lecd); +if (!vcc) { +rcu_read_unlock (); +kfree_skb (skb); +return -1 ; + } + +atm_force_charge (vcc, skb->truesize); + sk =sk_atm (vcc);skb_queue_tail (&sk->sk_receive_queue, skb); sk->sk_data_ready (sk);if (data !=NULL ) {pr_debug ("about to send %d bytes of data\n" , data->len); -atm_force_charge (priv->lecd, data->truesize); +atm_force_charge (vcc, data->truesize);skb_queue_tail (&sk->sk_receive_queue, data); sk->sk_data_ready (sk); } +rcu_read_unlock ();return 0 ; }
@@ -618,7 +640,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)atm_return (vcc, skb->truesize);if (*(__be16 *) skb->data ==htons (priv->lecid) || - !priv->lecd || !(dev->flags &IFF_UP )) { + !rcu_access_pointer (priv->lecd) || !(dev->flags &IFF_UP )) {/* * Probably looping back, or if lecd is missing, * lecd has gone down
@@ -753,12 +775,12 @@ static int lecd_attach(struct atm_vcc *vcc, int arg) priv =netdev_priv (dev_lec[i]); }else { priv =netdev_priv (dev_lec[i]); -if (priv->lecd) +if (rcu_access_pointer (priv->lecd))return -EADDRINUSE ; }lec_arp_init (priv); priv->itfnum = i;/* LANE2 addition */ - priv->lecd = vcc; +rcu_assign_pointer (priv->lecd, vcc); vcc->dev = &lecatm_dev;vcc_insert_socket (sk_atm (vcc));
net/atm/lec.h +1 -1
@@ -91,7 +91,7 @@ struct lec_priv {*/ spinlock_t lec_arp_lock;struct atm_vcc *mcast_vcc;/* Default Multicast Send VCC */ -struct atm_vcc *lecd; +struct atm_vcc __rcu *lecd;struct delayed_work lec_arp_work;/* C10 */ unsigned int maximum_unknown_frame_count;/*
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 14/311 btrfs: dont take device_list_mutex when querying zone info
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johannes Thumshirn <[email protected]>
[ Upstream commit 77603ab10429fe713a03345553ca8dbbfb1d91c6 ]
Shin'ichiro reported sporadic hangs when running generic/013 in our CI system. When enabling lockdep, there is a lockdep splat when calling btrfs_get_dev_zone_info_all_devices() in the mount path that can be triggered by i.e. generic/013:
======================================================
WARNING: possible circular locking dependency detected
7.0.0-rc1+ #355 Not tainted
------------------------------------------------------
mount/1043 is trying to acquire lock:
ffff8881020b5470 (&vblk->vdev_mutex){+.+.}-{4:4}, at: virtblk_report_zones+0xda/0x430
but task is already holding lock:
ffff888102a738e0 (&fs_devs->device_list_mutex){+.+.}-{4:4}, at: btrfs_get_dev_zone_info_all_devices+0x45/0x90
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&fs_devs->device_list_mutex){+.+.}-{4:4}:
__mutex_lock+0xa3/0x1360 btrfs_create_pending_block_groups+0x1f4/0x9d0 __btrfs_end_transaction+0x3e/0x2e0 btrfs_zoned_reserve_data_reloc_bg+0x2f8/0x390 open_ctree+0x1934/0x23db btrfs_get_tree.cold+0x105/0x26c vfs_get_tree+0x28/0xb0 __do_sys_fsconfig+0x324/0x680 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #3 (btrfs_trans_num_extwriters){++++}-{0:0}:
join_transaction+0xc2/0x5c0 start_transaction+0x17c/0xbc0 btrfs_zoned_reserve_data_reloc_bg+0x2b4/0x390 open_ctree+0x1934/0x23db btrfs_get_tree.cold+0x105/0x26c vfs_get_tree+0x28/0xb0 __do_sys_fsconfig+0x324/0x680 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #2 (btrfs_trans_num_writers){++++}-{0:0}:
lock_release+0x163/0x4b0 __btrfs_end_transaction+0x1c7/0x2e0 btrfs_dirty_inode+0x6f/0xd0 touch_atime+0xe5/0x2c0 btrfs_file_mmap_prepare+0x65/0x90 __mmap_region+0x4b9/0xf00 mmap_region+0xf7/0x120 do_mmap+0x43d/0x610 vm_mmap_pgoff+0xd6/0x190 ksys_mmap_pgoff+0x7e/0xc0 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #1 (&mm->mmap_lock){++++}-{4:4}:
__might_fault+0x68/0xa0 _copy_to_user+0x22/0x70 blkdev_copy_zone_to_user+0x22/0x40 virtblk_report_zones+0x282/0x430 blkdev_report_zones_ioctl+0xfd/0x130 blkdev_ioctl+0x20f/0x2c0 __x64_sys_ioctl+0x86/0xd0 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #0 (&vblk->vdev_mutex){+.+.}-{4:4}:
__lock_acquire+0x1522/0x2680 lock_acquire+0xd5/0x2f0 __mutex_lock+0xa3/0x1360 virtblk_report_zones+0xda/0x430 blkdev_report_zones_cached+0x162/0x190 btrfs_get_dev_zones+0xdc/0x2e0 btrfs_get_dev_zone_info+0x219/0xe80 btrfs_get_dev_zone_info_all_devices+0x62/0x90 open_ctree+0x1200/0x23db btrfs_get_tree.cold+0x105/0x26c vfs_get_tree+0x28/0xb0 __do_sys_fsconfig+0x324/0x680 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
other info that might help us debug this:
Chain exists of:
&vblk->vdev_mutex --> btrfs_trans_num_extwriters --> &fs_devs->device_list_mutex
Possible unsafe locking scenario: CPU0 CPU1
---- ----
lock(&fs_devs->device_list_mutex);
lock(btrfs_trans_num_extwriters);
lock(&fs_devs->device_list_mutex);
lock(&vblk->vdev_mutex);*** DEADLOCK ***
3 locks held by mount/1043:
#0: ffff88811063e878 (&fc->uapi_mutex){+.+.}-{4:4}, at: __do_sys_fsconfig+0x2ae/0x680
#1: ffff88810cb9f0e8 (&type->s_umount_key#31/1){+.+.}-{4:4}, at: alloc_super+0xc0/0x3e0
#2: ffff888102a738e0 (&fs_devs->device_list_mutex){+.+.}-{4:4}, at: btrfs_get_dev_zone_info_all_devices+0x45/0x90
stack backtrace: CPU: 2 UID: 0 PID: 1043 Comm: mount Not tainted 7.0.0-rc1+ #355 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-9.fc43 06/10/2025 Call Trace: <TASK> dump_stack_lvl+0x5b/0x80 print_circular_bug.cold+0x18d/0x1d8 check_noncircular+0x10d/0x130 __lock_acquire+0x1522/0x2680 ? vmap_small_pages_range_noflush+0x3ef/0x820 lock_acquire+0xd5/0x2f0 ? virtblk_report_zones+0xda/0x430 ? lock_is_held_type+0xcd/0x130 __mutex_lock+0xa3/0x1360 ? virtblk_report_zones+0xda/0x430 ? virtblk_report_zones+0xda/0x430 ? __pfx_copy_zone_info_cb+0x10/0x10 ? virtblk_report_zones+0xda/0x430 virtblk_report_zones+0xda/0x430 ? __pfx_copy_zone_info_cb+0x10/0x10 blkdev_report_zones_cached+0x162/0x190 ? __pfx_copy_zone_info_cb+0x10/0x10 btrfs_get_dev_zones+0xdc/0x2e0 btrfs_get_dev_zone_info+0x219/0xe80 btrfs_get_dev_zone_info_all_devices+0x62/0x90 open_ctree+0x1200/0x23db btrfs_get_tree.cold+0x105/0x26c ? rcu_is_watching+0x18/0x50 vfs_get_tree+0x28/0xb0 __do_sys_fsconfig+0x324/0x680 do_syscall_64+0x92/0x4f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f615e27a40e RSP: 002b:00007fff11b18fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 000055572e92ab10 RCX: 00007f615e27a40e RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 RBP: 00007fff11b19100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000055572e92bc40 R14: 00007f615e3faa60 R15: 000055572e92bd08 </TASK>
Don't hold the device_list_mutex while calling into btrfs_get_dev_zone_info() in btrfs_get_dev_zone_info_all_devices() to mitigate the issue. This is safe, as no other thread can touch the device list at the moment of execution.
--- fs/btrfs/zoned.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
fs/btrfs/zoned.c +4 -2
@@ -337,7 +337,10 @@ int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)if (!btrfs_fs_incompat (fs_info,ZONED ))return 0 ; -mutex_lock (&fs_devices->device_list_mutex); +/* +* No need to take the device_list mutex here, we're still in the mount +* path and devices cannot be added to or removed from the list yet. +*/ list_for_each_entry (device, &fs_devices->devices, dev_list) {/* We can skip reading of zone info for missing devices */ if (!device->bdev)
@@ -347,7 +350,6 @@ int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)if (ret)break ; } -mutex_unlock (&fs_devices->device_list_mutex);return ret; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 15/311 tg3: replace placeholder MAC address with device property
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paul SAGE <[email protected]>
[ Upstream commit e4c00ba7274b613e3ab19e27eb009f0ec2e28379 ]
On some systems (e.g. iMac 20,1 with BCM57766), the tg3 driver reads a default placeholder mac address (00:10:18:00:00:00) from the mailbox. The correct value on those systems are stored in the 'local-mac-address' property.
This patch, detect the default value and tries to retrieve the correct address from the device_get_mac_address function instead.
The patch has been tested on two different systems:
- iMac 20,1 (BCM57766) model which use the local-mac-address property
- iMac 13,2 (BCM57766) model which can use the mailbox, NVRAM or MAC control registers
--- drivers/net/ethernet/broadcom/tg3.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
drivers/net/ethernet/broadcom/tg3.c +11 -0
@@ -17030,6 +17030,13 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)return err; } +static int tg3_is_default_mac_address (u8 *addr) +{ +static const u8 default_mac_address[ETH_ALEN ] = {0x00 ,0x10 ,0x18 ,0x00 ,0x00 ,0x00 }; + +return ether_addr_equal (default_mac_address, addr); +} +static int tg3_get_device_address (struct tg3 *tp,u8 *addr) {u32 hi, lo, mac_offset;
@@ -17103,6 +17110,10 @@ static int tg3_get_device_address(struct tg3 *tp, u8 *addr)if (!is_valid_ether_addr (addr))return -EINVAL ; + +if (tg3_is_default_mac_address (addr)) +return device_get_mac_address (&tp->pdev->dev, addr); +return 0 ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 16/311 objtool: Fix Clang jump table detection
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Josh Poimboeuf <[email protected]>
[ Upstream commit 4e5019216402ad0b4a84cff457b662d26803f103 ]
With Clang, there can be a conditional forward jump between the load of the jump table address and the indirect branch.
Fixes the following warning:
vmlinux.o: warning: objtool: ___bpf_prog_run+0x1c5: sibling call from callable instruction with modified stack frame
--- tools/objtool/check.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
tools/objtool/check.c +2 -3
@@ -2144,12 +2144,11 @@ static void mark_func_jump_tables(struct objtool_file *file, last = insn;/* -* Store back-pointers for unconditional forward jumps such +* Store back-pointers for forward jumps such * that find_jump_table() can back-track using those and * avoid some potentially confusing code. */ -if (insn->type ==INSN_JUMP_UNCONDITIONAL && insn->jump_dest && - insn->offset > last->offset && +if (insn->jump_dest && insn->jump_dest->offset > insn->offset && !insn->jump_dest->first_jump_src) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 17/311 HID: logitech-hidpp: Prevent use-after-free on force feedback initialisation failure
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lee Jones <[email protected]>
[ Upstream commit f7a4c78bfeb320299c1b641500fe7761eadbd101 ]
Presently, if the force feedback initialisation fails when probing the Logitech G920 Driving Force Racing Wheel for Xbox One, an error number will be returned and propagated before the userspace infrastructure (sysfs and /dev/input) has been torn down. If userspace ignores the errors and continues to use its references to these dangling entities, a UAF will promptly follow.
We have 2 options; continue to return the error, but ensure that all of the infrastructure is torn down accordingly or continue to treat this condition as a warning by emitting the message but returning success. It is thought that the original author's intention was to emit the warning but keep the device functional, less the force feedback feature, so let's go with that.
--- drivers/hid/hid-logitech-hidpp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/hid/hid-logitech-hidpp.c +3 -1
@@ -4487,10 +4487,12 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)if (!ret) ret =hidpp_ff_init (hidpp, &data); -if (ret) +if (ret) {hid_warn (hidpp->hid_dev,"Unable to initialize force feedback support, errno %d\n" , ret); + ret =0 ; + } }/*
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 18/311 HID: core: Mitigate potential OOB by removing bogus memset()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lee Jones <[email protected]>
[ Upstream commit 0a3fe972a7cb1404f693d6f1711f32bc1d244b1c ]
The memset() in hid_report_raw_event() has the good intention of clearing out bogus data by zeroing the area from the end of the incoming data string to the assumed end of the buffer. However, as we have previously seen, doing so can easily result in OOB reads and writes in the subsequent thread of execution.
The current suggestion from one of the HID maintainers is to remove the memset() and simply return if the incoming event buffer size is not large enough to fill the associated report.
Suggested-by Benjamin Tissoires <[email protected]>
--- drivers/hid/hid-core.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
drivers/hid/hid-core.c +4 -3
@@ -2057,9 +2057,10 @@ int hid_report_raw_event(struct hid_device *hid, enum hid_report_type type, u8 * rsize = max_buffer_size;if (csize < rsize) { -dbg_hid ("report %d is too short, (%d < %d)\n" , report->id, - csize, rsize); -memset (cdata + csize,0 , rsize - csize); +hid_warn_ratelimited (hid,"Event data for report %d was too short (%d vs %d)\n" , + report->id, rsize, csize); + ret = -EINVAL ; + goto out; }if ((hid->claimed &HID_CLAIMED_HIDDEV ) && hid->hiddev_report_event)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 19/311 objtool/klp: fix mkstemp() failure with long paths
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Joe Lawrence <[email protected]>
[ Upstream commit 28e367a969b0c54c87ca655ec180715fe469fd14 ]
The elf_create_file() function fails with EINVAL when the build directory path is long enough to truncate the "XXXXXX" suffix in the 256-byte tmp_name buffer.
Simplify the code to remove the unnecessary dirname()/basename() split and concatenation. Instead, allocate the exact number of bytes needed for the path.
--- tools/objtool/elf.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-)
tools/objtool/elf.c +3 -20
@@ -16,7 +16,6 @@#include <string.h> #include <unistd.h> #include <errno.h> -#include <libgen.h> #include <ctype.h> #include <linux/align.h> #include <linux/kernel.h>
@@ -1189,7 +1188,7 @@ struct elf *elf_open_read(const char *name, int flags)struct elf *elf_create_file (GElf_Ehdr *ehdr,const char *name) {struct section *null, *symtab, *strtab, *shstrtab; -char *dir, *base, *tmp_name; +char *tmp_name;struct symbol *sym;struct elf *elf;
@@ -1203,29 +1202,13 @@ struct elf *elf_create_file(GElf_Ehdr *ehdr, const char *name)INIT_LIST_HEAD (&elf->sections); - dir =strdup (name); -if (!dir) { -ERROR_GLIBC ("strdup" ); -return NULL ; - } - - dir =dirname (dir); - - base =strdup (name); -if (!base) { -ERROR_GLIBC ("strdup" ); -return NULL ; - } - - base =basename (base); - - tmp_name =malloc (256 ); + tmp_name =malloc (strlen (name) +8 );if (!tmp_name) {ERROR_GLIBC ("malloc" );return NULL ; } -snprintf (tmp_name,256 ,"%s/%s.XXXXXX" , dir, base); +sprintf (tmp_name,"%s.XXXXXX" , name); elf->fd =mkstemp (tmp_name);if (elf->fd ==-1 ) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 20/311 HID: multitouch: Check to ensure report responses match the request
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lee Jones <[email protected]>
[ Upstream commit e716edafedad4952fe3a4a273d2e039a84e8681a ]
It is possible for a malicious (or clumsy) device to respond to a specific report's feature request using a completely different report ID. This can cause confusion in the HID core resulting in nasty side-effects such as OOB writes.
Add a check to ensure that the report ID in the response, matches the one that was requested. If it doesn't, omit reporting the raw event and return early.
--- drivers/hid/hid-multitouch.c | 7 +++++++ 1 file changed, 7 insertions(+)
drivers/hid/hid-multitouch.c +7 -0
@@ -526,12 +526,19 @@ static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)dev_warn (&hdev->dev,"failed to fetch feature %d\n" , report->id); }else { +/* The report ID in the request and the response should match */ +if (report->id != buf[0 ]) { +hid_err (hdev,"Returned feature report did not match the request\n" ); + goto free; + } + ret =hid_report_raw_event (hdev,HID_FEATURE_REPORT , buf, size,0 );if (ret)dev_warn (&hdev->dev,"failed to report feature\n" ); } +free:kfree (buf); }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 21/311 btrfs: reserve enough transaction items for qgroup ioctls
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Filipe Manana <[email protected]>
[ Upstream commit f9a4e3015db1aeafbef407650eb8555445ca943e ]
Currently our qgroup ioctls don't reserve any space, they just do a transaction join, which does not reserve any space, neither for the quota tree updates nor for the delayed refs generated when updating the quota tree. The quota root uses the global block reserve, which is fine most of the time since we don't expect a lot of updates to the quota root, or to be too close to -ENOSPC such that other critical metadata updates need to resort to the global reserve.
However this is not optimal, as not reserving proper space may result in a transaction abort due to not reserving space for delayed refs and then abusing the use of the global block reserve.
For example, the following reproducer (which is unlikely to model any real world use case, but just to illustrate the problem), triggers such a transaction abort due to -ENOSPC when running delayed refs:
$ cat test.sh #!/bin/bash
DEV=/dev/nullb0
MNT=/mnt/nullb0
umount $DEV &> /dev/null
# Limit device to 1G so that it's much faster to reproduce the issue. mkfs.btrfs -f -b 1G $DEV
mount -o commit=600 $DEV $MNT
fallocate -l 800M $MNT/filler
btrfs quota enable $MNT
for ((i = 1; i <= 400000; i++)); do
btrfs qgroup create 1/$i $MNT
done
umount $MNT
When running this, we can see in dmesg/syslog that a transaction abort happened:
[436.490] BTRFS error (device nullb0): failed to run delayed ref for logical 30408704 num_bytes 16384 type 176 action 1 ref_mod 1: -28 [436.493] ------------[ cut here ]------------ [436.494] BTRFS: Transaction aborted (error -28) [436.495] WARNING: fs/btrfs/extent-tree.c:2247 at btrfs_run_delayed_refs+0xd9/0x110 [btrfs], CPU#4: umount/2495372 [436.497] Modules linked in: btrfs loop (...) [436.508] CPU: 4 UID: 0 PID: 2495372 Comm: umount Tainted: G W 6.19.0-rc8-btrfs-next-225+ #1 PREEMPT(full) [436.510] Tainted: [W]=WARN [436.511] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014 [436.513] RIP: 0010:btrfs_run_delayed_refs+0xdf/0x110 [btrfs] [436.514] Code: 0f 82 ea (...) [436.518] RSP: 0018:ffffd511850b7d78 EFLAGS: 00010292 [436.519] RAX: 00000000ffffffe4 RBX: ffff8f120dad37e0 RCX: 0000000002040001 [436.520] RDX: 0000000000000002 RSI: 00000000ffffffe4 RDI: ffffffffc090fd80 [436.522] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffffc04d1867 [436.523] R10: ffff8f18dc1fffa8 R11: 0000000000000003 R12: ffff8f173aa89400 [436.524] R13: 0000000000000000 R14: ffff8f173aa89400 R15: 0000000000000000 [436.526] FS: 00007fe59045d840(0000) GS:ffff8f192e22e000(0000) knlGS:0000000000000000 [436.527] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [436.528] CR2: 00007fe5905ff2b0 CR3: 000000060710a002 CR4: 0000000000370ef0 [436.530] Call Trace: [436.530] <TASK> [436.530] btrfs_commit_transaction+0x73/0xc00 [btrfs] [436.531] ? btrfs_attach_transaction_barrier+0x1e/0x70 [btrfs] [436.532] sync_filesystem+0x7a/0x90 [436.533] generic_shutdown_super+0x28/0x180 [436.533] kill_anon_super+0x12/0x40 [436.534] btrfs_kill_super+0x12/0x20 [btrfs] [436.534] deactivate_locked_super+0x2f/0xb0 [436.534] cleanup_mnt+0xea/0x180 [436.535] task_work_run+0x58/0xa0 [436.535] exit_to_user_mode_loop+0xed/0x480 [436.536] ? __x64_sys_umount+0x68/0x80 [436.536] do_syscall_64+0x2a5/0xf20 [436.537] entry_SYSCALL_64_after_hwframe+0x76/0x7e [436.537] RIP: 0033:0x7fe5906b6217 [436.538] Code: 0d 00 f7 (...) [436.540] RSP: 002b:00007ffcd87a61f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [436.541] RAX: 0000000000000000 RBX: 00005618b9ecadc8 RCX: 00007fe5906b6217 [436.541] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005618b9ecb100 [436.542] RBP: 0000000000000000 R08: 00007ffcd87a4fe0 R09: 00000000ffffffff [436.544] R10: 0000000000000103 R11: 0000000000000246 R12: 00007fe59081626c [436.544] R13: 00005618b9ecb100 R14: 0000000000000000 R15: 00005618b9ecacc0 [436.545] </TASK> [436.545] ---[ end trace 0000000000000000 ]---
Fix this by changing the qgroup ioctls to use start transaction instead of joining so that proper space is reserved for the delayed refs generated for the updates to the quota root. This way we don't get any transaction abort.
--- fs/btrfs/ioctl.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
fs/btrfs/ioctl.c +9 -3
@@ -3697,7 +3697,8 @@ static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg) } } - trans =btrfs_join_transaction (root); +/* 2 BTRFS_QGROUP_RELATION_KEY items. */ + trans =btrfs_start_transaction (root,2 );if (IS_ERR (trans)) { ret =PTR_ERR (trans); goto out;
@@ -3769,7 +3770,11 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg) goto out; } - trans =btrfs_join_transaction (root); +/* +* 1 BTRFS_QGROUP_INFO_KEY item. +* 1 BTRFS_QGROUP_LIMIT_KEY item. +*/ + trans =btrfs_start_transaction (root,2 );if (IS_ERR (trans)) { ret =PTR_ERR (trans); goto out;
@@ -3818,7 +3823,8 @@ static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg) goto drop_write; } - trans =btrfs_join_transaction (root); +/* 1 BTRFS_QGROUP_LIMIT_KEY item. */ + trans =btrfs_start_transaction (root,1 );if (IS_ERR (trans)) { ret =PTR_ERR (trans); goto out;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 22/311 i2c: tegra: Dont mark devices with pins as IRQ safe
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mikko Perttunen <[email protected]>
[ Upstream commit ec69c9e88315c4be70c283f18c2ff130da6320b5 ]
I2C devices with associated pinctrl states (DPAUX I2C controllers) will change pinctrl state during runtime PM. This requires taking a mutex, so these devices cannot be marked as IRQ safe.
Add PINCTRL as dependency to avoid build errors.
--- drivers/i2c/busses/Kconfig | 2 ++ drivers/i2c/busses/i2c-tegra.c | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-)
drivers/i2c/busses/Kconfig +2 -0
@@ -1220,6 +1220,8 @@ config I2C_TEGRA tristate "NVIDIA Tegra internal I2C controller" depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC)) # COMPILE_TEST needs architectures with readsX()/writesX() primitives + depends on PINCTRL + # ARCH_TEGRA implies PINCTRL, but the COMPILE_TEST side doesn't. help If you say yes to this option, support will be included for the I2C controller embedded in NVIDIA Tegra SOCs
drivers/i2c/busses/i2c-tegra.c +4 -1
@@ -1837,8 +1837,11 @@ static int tegra_i2c_probe(struct platform_device *pdev)* * VI I2C device shouldn't be marked as IRQ-safe because VI I2C won't * be used for atomic transfers. ACPI device is not IRQ safe also. +* +* Devices with pinctrl states cannot be marked IRQ-safe as the pinctrl +* state transitions during runtime PM require mutexes. */ -if (!IS_VI (i2c_dev) && !has_acpi_companion (i2c_dev->dev)) +if (!IS_VI (i2c_dev) && !has_acpi_companion (i2c_dev->dev) && !i2c_dev->dev->pins)pm_runtime_irq_safe (i2c_dev->dev);pm_runtime_enable (i2c_dev->dev);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 23/311 btrfs: reject root items with drop_progress and zero drop_level
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: ZhengYuan Huang <[email protected]>
[ Upstream commit b17b79ff896305fd74980a5f72afec370ee88ca4 ]
[BUG]
When recovering relocation at mount time, merge_reloc_root() and btrfs_drop_snapshot() both use BUG_ON(level == 0) to guard against an impossible state: a non-zero drop_progress combined with a zero drop_level in a root_item, which can be triggered:
------------[ cut here ]------------ kernel BUG at fs/btrfs/relocation.c:1545! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 283 ... Tainted: 6.18.0+ #16 PREEMPT(voluntary) Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: QEMU Ubuntu 24.04 PC v2, BIOS 1.16.3-debian-1.16.3-2 RIP: 0010:merge_reloc_root+0x1266/0x1650 fs/btrfs/relocation.c:1545 Code: ffff0000 00004589 d7e9acfa ffffe8a1 79bafebe 02000000 Call Trace: merge_reloc_roots+0x295/0x890 fs/btrfs/relocation.c:1861 btrfs_recover_relocation+0xd6e/0x11d0 fs/btrfs/relocation.c:4195 btrfs_start_pre_rw_mount+0xa4d/0x1810 fs/btrfs/disk-io.c:3130 open_ctree+0x5824/0x5fe0 fs/btrfs/disk-io.c:3640 btrfs_fill_super fs/btrfs/super.c:987 [inline] btrfs_get_tree_super fs/btrfs/super.c:1951 [inline] btrfs_get_tree_subvol fs/btrfs/super.c:2094 [inline] btrfs_get_tree+0x111c/0x2190 fs/btrfs/super.c:2128 vfs_get_tree+0x9a/0x370 fs/super.c:1758 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3642 [inline] do_new_mount fs/namespace.c:3718 [inline] path_mount+0x5b8/0x1ea0 fs/namespace.c:4028 do_mount fs/namespace.c:4041 [inline] __do_sys_mount fs/namespace.c:4229 [inline] __se_sys_mount fs/namespace.c:4206 [inline] __x64_sys_mount+0x282/0x320 fs/namespace.c:4206 ... RIP: 0033:0x7f969c9a8fde Code: 0f1f4000 48c7c2b0 fffffff7 d8648902 b8ffffff ffc3660f ---[ end trace 0000000000000000 ]---
The bug is reproducible on 7.0.0-rc2-next-20260310 with our dynamic metadata fuzzing tool that corrupts btrfs metadata at runtime.
[CAUSE]
A non-zero drop_progress.objectid means an interrupted btrfs_drop_snapshot() left a resume point on disk, and in that case drop_level must be greater than 0 because the checkpoint is only saved at internal node levels.
Although this invariant is enforced when the kernel writes the root item, it is not validated when the root item is read back from disk. That allows on-disk corruption to provide an invalid state with drop_progress.objectid != 0 and drop_level == 0.
When relocation recovery later processes such a root item, merge_reloc_root() reads drop_level and hits BUG_ON(level == 0). The same invalid metadata can also trigger the corresponding BUG_ON() in btrfs_drop_snapshot().
[FIX]
Fix this by validating the root_item invariant in tree-checker when reading root items from disk: if drop_progress.objectid is non-zero, drop_level must also be non-zero. Reject such malformed metadata with -EUCLEAN before it reaches merge_reloc_root() or btrfs_drop_snapshot() and triggers the BUG_ON.
After the fix, the same corruption is correctly rejected by tree-checker and the BUG_ON is no longer triggered.
--- fs/btrfs/tree-checker.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
fs/btrfs/tree-checker.c +17 -0
@@ -1260,6 +1260,23 @@ static int check_root_item(struct extent_buffer *leaf, struct btrfs_key *key, btrfs_root_drop_level(&ri), BTRFS_MAX_LEVEL - 1);return -EUCLEAN ; } +/* +* If drop_progress.objectid is non-zero, a btrfs_drop_snapshot() was +* interrupted and the resume point was recorded in drop_progress and +* drop_level. In that case drop_level must be >= 1: level 0 is the +* leaf level and drop_snapshot never saves a checkpoint there (it +* only records checkpoints at internal node levels in DROP_REFERENCE +* stage). A zero drop_level combined with a non-zero drop_progress +* objectid indicates on-disk corruption and would cause a BUG_ON in +* merge_reloc_root() and btrfs_drop_snapshot() at mount time. +*/ +if (unlikely (btrfs_disk_key_objectid (&ri.drop_progress) !=0 && +btrfs_root_drop_level (&ri) ==0 )) { +generic_err (leaf, slot, +"invalid root drop_level 0 with non-zero drop_progress objectid %llu" , +btrfs_disk_key_objectid (&ri.drop_progress)); +return -EUCLEAN ; + }/* Flags check */ if (unlikely (btrfs_root_flags (&ri) & ~valid_root_flags)) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 24/311 drm/amd/display: Fix gamma 2.2 colorop TFs
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Hung <[email protected]>
[ Upstream commit b49814033cb5224c818cfb04dccb3260da10cc4f ]
Use GAMMA22 for degamma/blend and GAMMA22_INV for shaper so curves match the color pipeline.
--- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c +3 -3
@@ -37,19 +37,19 @@ const u64 amdgpu_dm_supported_degam_tfs =BIT (DRM_COLOROP_1D_CURVE_SRGB_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_PQ_125_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_BT2020_INV_OETF ) | -BIT (DRM_COLOROP_1D_CURVE_GAMMA22_INV ); +BIT (DRM_COLOROP_1D_CURVE_GAMMA22 );const u64 amdgpu_dm_supported_shaper_tfs =BIT (DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_BT2020_OETF ) | -BIT (DRM_COLOROP_1D_CURVE_GAMMA22 ); +BIT (DRM_COLOROP_1D_CURVE_GAMMA22_INV );const u64 amdgpu_dm_supported_blnd_tfs =BIT (DRM_COLOROP_1D_CURVE_SRGB_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_PQ_125_EOTF ) |BIT (DRM_COLOROP_1D_CURVE_BT2020_INV_OETF ) | -BIT (DRM_COLOROP_1D_CURVE_GAMMA22_INV ); +BIT (DRM_COLOROP_1D_CURVE_GAMMA22 );#define MAX_COLOR_PIPELINE_OPS 10
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 25/311 smb: client: fix generic/694 due to wrong ->i_blocks
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara <[email protected]>
[ Upstream commit 23b5df09c27aec13962b30d32a4167ebdd043f8e ]
When updating ->i_size, make sure to always update ->i_blocks as well until we query new allocation size from the server.
generic/694 was failing because smb3_simple_falloc() was missing the update of ->i_blocks after calling cifs_setsize(). So, fix this by updating ->i_blocks directly in cifs_setsize(), so all places that call it doesn't need to worry about updating ->i_blocks later.
--- fs/smb/client/cifsglob.h | 6 ++++++ fs/smb/client/file.c | 1 - fs/smb/client/inode.c | 21 ++++++--------------- fs/smb/client/smb2ops.c | 20 ++++---------------- 4 files changed, 16 insertions(+), 32 deletions(-)
fs/smb/client/cifsglob.h +6 -0
@@ -2324,4 +2324,10 @@ static inline int cifs_open_create_options(unsigned int oflags, int opts) return opts; } +/* +* The number of blocks is not related to (i_size / i_blksize), but instead +* 512 byte (2**9) size is required for calculating num blocks. +*/ +#define CIFS_INO_BLOCKS (size) DIV_ROUND_UP_ULL((u64)(size), 512) +#endif /* _CIFS_GLOB_H */
fs/smb/client/file.c +0 -1
@@ -994,7 +994,6 @@ static int cifs_do_truncate(const unsigned int xid, struct dentry *dentry)if (!rc) {netfs_resize_file (&cinode->netfs,0 , true);cifs_setsize (inode,0 ); - inode->i_blocks =0 ; } }if (cfile)
fs/smb/client/inode.c +6 -15
@@ -219,13 +219,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr,*/ if (is_size_safe_to_change (cifs_i, fattr->cf_eof, from_readdir)) {i_size_write (inode, fattr->cf_eof); - -/* -* i_blocks is not related to (i_size / i_blksize), -* but instead 512 byte (2**9) size is required for -* calculating num blocks. -*/ - inode->i_blocks = (512 -1 + fattr->cf_bytes) >>9 ; + inode->i_blocks =CIFS_INO_BLOCKS (fattr->cf_bytes); }if (S_ISLNK (fattr->cf_mode) && fattr->cf_symlink_target) {
@@ -3009,6 +3003,11 @@ void cifs_setsize(struct inode *inode, loff_t offset) {spin_lock (&inode->i_lock);i_size_write (inode, offset); +/* +* Until we can query the server for actual allocation size, +* this is best estimate we have for blocks allocated for a file. +*/ + inode->i_blocks =CIFS_INO_BLOCKS (offset);spin_unlock (&inode->i_lock);inode_set_mtime_to_ts (inode,inode_set_ctime_current (inode));truncate_pagecache (inode, offset);
@@ -3081,14 +3080,6 @@ int cifs_file_set_size(const unsigned int xid, struct dentry *dentry,if (rc ==0 ) {netfs_resize_file (&cifsInode->netfs, size, true);cifs_setsize (inode, size); -/* -* i_blocks is not related to (i_size / i_blksize), but instead -* 512 byte (2**9) size is required for calculating num blocks. -* Until we can query the server for actual allocation size, -* this is best estimate we have for blocks allocated for a file -* Number of blocks must be rounded up so size 1 is not 0 blocks -*/ - inode->i_blocks = (512 -1 + size) >>9 ; }return rc;
fs/smb/client/smb2ops.c +4 -16
@@ -1493,6 +1493,7 @@ smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon, {struct smb2_file_network_open_info file_inf;struct inode *inode; +u64 asize;int rc; rc = __SMB2_close(xid, tcon, cfile->fid.persistent_fid,
@@ -1516,14 +1517,9 @@ smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon,inode_set_atime_to_ts (inode,cifs_NTtimeToUnix (file_inf.LastAccessTime)); -/* -* i_blocks is not related to (i_size / i_blksize), -* but instead 512 byte (2**9) size is required for -* calculating num blocks. -*/ -if (le64_to_cpu (file_inf.AllocationSize) >4096 ) - inode->i_blocks = - (512 -1 +le64_to_cpu (file_inf.AllocationSize)) >>9 ; + asize =le64_to_cpu (file_inf.AllocationSize); +if (asize >4096 ) + inode->i_blocks =CIFS_INO_BLOCKS (asize);/* End of file and Attributes should not have to be updated on close */ spin_unlock (&inode->i_lock);
@@ -2197,14 +2193,6 @@ smb2_duplicate_extents(const unsigned int xid, rc =smb2_set_file_size (xid, tcon, trgtfile, dest_off + len, false);if (rc) goto duplicate_extents_out; - -/* -* Although also could set plausible allocation size (i_blocks) -* here in addition to setting the file size, in reflink -* it is likely that the target file is sparse. Its allocation -* size will be queried on next revalidate, but it is important -* to make sure that file's cached size is updated immediately -*/ netfs_resize_file (netfs_inode (inode), dest_off + len, true);cifs_setsize (inode, dest_off + len); }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 26/311 spi: geni-qcom: Check DMA interrupts early in ISR
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Praveen Talari <[email protected]>
[ Upstream commit 8c89a077ca796a2fe248c584e9d7e66cff0388c8 ]
The current interrupt handler only checks the GENI main IRQ status (m_irq) before deciding to return IRQ_NONE. This can lead to spurious IRQ_NONE returns when DMA interrupts are pending but m_irq is zero.
Move the DMA TX/RX status register reads to the beginning of the ISR, right after reading m_irq. Update the early return condition to check all three status registers (m_irq, dma_tx_status, dma_rx_status) before returning IRQ_NONE.
--- drivers/spi/spi-geni-qcom.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
drivers/spi/spi-geni-qcom.c +5 -4
@@ -958,10 +958,13 @@ static irqreturn_t geni_spi_isr(int irq, void *data)struct spi_controller *spi = data;struct spi_geni_master *mas =spi_controller_get_devdata (spi);struct geni_se *se = &mas->se; -u32 m_irq; +u32 m_irq, dma_tx_status, dma_rx_status; m_irq =readl (se->base +SE_GENI_M_IRQ_STATUS ); -if (!m_irq) + dma_tx_status =readl_relaxed (se->base +SE_DMA_TX_IRQ_STAT ); + dma_rx_status =readl_relaxed (se->base +SE_DMA_RX_IRQ_STAT ); + +if (!m_irq && !dma_tx_status && !dma_rx_status)return IRQ_NONE ; if (m_irq & (M_CMD_OVERRUN_EN | M_ILLEGAL_CMD_EN | M_CMD_FAILURE_EN |
@@ -1009,8 +1012,6 @@ static irqreturn_t geni_spi_isr(int irq, void *data) } }else if (mas->cur_xfer_mode ==GENI_SE_DMA ) {const struct spi_transfer *xfer = mas->cur_xfer; -u32 dma_tx_status =readl_relaxed (se->base +SE_DMA_TX_IRQ_STAT ); -u32 dma_rx_status =readl_relaxed (se->base +SE_DMA_RX_IRQ_STAT );if (dma_tx_status)writel (dma_tx_status, se->base +SE_DMA_TX_IRQ_CLR );
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 27/311 mshv: Fix error handling in mshv_region_pin
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stanislav Kinsburskii <[email protected]>
[ Upstream commit c0e296f257671ba10249630fe58026f29e4804d9 ]
The current error handling has two issues:
First, pin_user_pages_fast() can return a short pin count (less than requested but greater than zero) when it cannot pin all requested pages. This is treated as success, leading to partially pinned regions being used, which causes memory corruption.
Second, when an error occurs mid-loop, already pinned pages from the current batch are not properly accounted for before calling mshv_region_invalidate_pages(), causing a page reference leak.
Treat short pins as errors and fix partial batch accounting before cleanup.
--- drivers/hv/mshv_regions.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/hv/mshv_regions.c +4 -2
@@ -314,15 +314,17 @@ int mshv_region_pin(struct mshv_mem_region *region) ret =pin_user_pages_fast (userspace_addr, nr_pages,FOLL_WRITE |FOLL_LONGTERM , pages); -if (ret <0 ) +if (ret != nr_pages) goto release_pages; }return 0 ; release_pages: +if (ret >0 ) + done_count += ret;mshv_region_invalidate_pages (region,0 , done_count); -return ret; +return ret <0 ? ret : -ENOMEM ; } static int mshv_region_chunk_unmap(struct mshv_mem_region *region,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 28/311 dt-bindings: auxdisplay: ht16k33: Use unevaluatedProperties to fix common property warning
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Frank Li <[email protected]>
[ Upstream commit 398c0c8bbc8f5a9d2f43863275a427a9d3720b6f ]
Change additionalProperties to unevaluatedProperties because it refs to /schemas/input/matrix-keymap.yaml.
Fix below CHECK_DTBS warnings:arch/arm/boot/dts/nxp/imx/imx6dl-victgo.dtb: keypad@70 (holtek,ht16k33): 'keypad,num-columns', 'keypad,num-rows' do not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/auxdisplay/holtek,ht16k33.yaml#
--- .../devicetree/bindings/auxdisplay/holtek,ht16k33.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml +1 -1
@@ -66,7 +66,7 @@ then: required: - refresh-rate-hz -additionalProperties: false +unevaluatedProperties: false examples: - |
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 29/311 wifi: iwlwifi: mld: Fix MLO scan timing
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pagadala Yesu Anjaneyulu <[email protected]>
[ Upstream commit ec66ec6a5a8f53e7c70085749e8d68f4431c630f ]
Calculate MLO scan start time based on actual scan start notification from firmware instead of recording time when scan command is sent.
Currently, MLO scan start time was captured immediately after sending the scan command to firmware. However, the actual scan start time may differ due to the FW being busy with a previous scan.
In that case, the link selection code will think that the MLO scan is too old, and will warn.
To fix it, Implement start scan notification handling to capture the precise moment when firmware begins the scan operation.
--- .../wireless/intel/iwlwifi/fw/api/commands.h | 5 ++++ .../net/wireless/intel/iwlwifi/fw/api/scan.h | 10 +++++++ drivers/net/wireless/intel/iwlwifi/mld/mld.c | 1 + drivers/net/wireless/intel/iwlwifi/mld/mlo.c | 4 +-- .../net/wireless/intel/iwlwifi/mld/notif.c | 5 ++++ drivers/net/wireless/intel/iwlwifi/mld/scan.c | 30 +++++++++++++++++-- drivers/net/wireless/intel/iwlwifi/mld/scan.h | 9 ++++-- 7 files changed, 56 insertions(+), 8 deletions(-)
drivers/net/wireless/intel/iwlwifi/fw/api/commands.h +5 -0
@@ -296,6 +296,11 @@ enum iwl_legacy_cmds {*/ SCAN_OFFLOAD_UPDATE_PROFILES_CMD =0x6E , +/** +* @SCAN_START_NOTIFICATION_UMAC: uses &struct iwl_umac_scan_start +*/ + SCAN_START_NOTIFICATION_UMAC = 0xb2, +/** * @MATCH_FOUND_NOTIFICATION: scan match found */
drivers/net/wireless/intel/iwlwifi/fw/api/scan.h +10 -0
@@ -1156,6 +1156,16 @@ enum iwl_umac_scan_abort_status { IWL_UMAC_SCAN_ABORT_STATUS_NOT_FOUND, }; +/** +* struct iwl_umac_scan_start - scan start notification +* @uid: scan id, &enum iwl_umac_scan_uid_offsets +* @reserved: for future use +*/ +struct iwl_umac_scan_start { +__le32 uid; +__le32 reserved; +} __packed;/* SCAN_START_UMAC_API_S_VER_1 */ +/** * struct iwl_umac_scan_complete - scan complete notification * @uid: scan id, &enum iwl_umac_scan_uid_offsets
drivers/net/wireless/intel/iwlwifi/mld/mld.c +1 -0
@@ -171,6 +171,7 @@ static const struct iwl_hcmd_names iwl_mld_legacy_names[] = {HCMD_NAME (MISSED_BEACONS_NOTIFICATION ),HCMD_NAME (MAC_PM_POWER_TABLE ),HCMD_NAME (MFUART_LOAD_NOTIFICATION ), +HCMD_NAME (SCAN_START_NOTIFICATION_UMAC ),HCMD_NAME (RSS_CONFIG_CMD ),HCMD_NAME (SCAN_ITERATION_COMPLETE_UMAC ), HCMD_NAME(REPLY_RX_MPDU_CMD),
drivers/net/wireless/intel/iwlwifi/mld/mlo.c +2 -2
@@ -725,7 +725,7 @@ iwl_mld_set_link_sel_data(struct iwl_mld *mld,/* Ignore any BSS that was not seen in the last MLO scan */ if (ktime_before (link_conf->bss->ts_boottime, - mld->scan.last_mlo_scan_time)) + mld->scan.last_mlo_scan_start_time))continue ; data[n_data].link_id = link_id;
@@ -931,7 +931,7 @@ static void _iwl_mld_select_links(struct iwl_mld *mld,if (!mld_vif->authorized ||hweight16 (usable_links) <=1 )return ; -if (WARN (ktime_before (mld->scan.last_mlo_scan_time, +if (WARN (ktime_before (mld->scan.last_mlo_scan_start_time,ktime_sub_ns (ktime_get_boottime_ns (),5ULL *NSEC_PER_SEC )),"Last MLO scan was too long ago, can't select links\n" ))
drivers/net/wireless/intel/iwlwifi/mld/notif.c +5 -0
@@ -284,6 +284,8 @@ static void iwl_mld_handle_beacon_notification(struct iwl_mld *mld,* at least enough bytes to cover the structure listed in the CMD_VER_ENTRY. */ +CMD_VERSIONS (scan_start_notif, + CMD_VER_ENTRY(1, iwl_umac_scan_start))CMD_VERSIONS (scan_complete_notif, CMD_VER_ENTRY(1, iwl_umac_scan_complete)) CMD_VERSIONS(scan_iter_complete_notif,
@@ -355,6 +357,7 @@ DEFINE_SIMPLE_CANCELLATION(datapath_monitor, iwl_datapath_monitor_notif, link_id) DEFINE_SIMPLE_CANCELLATION(roc, iwl_roc_notif, activity) DEFINE_SIMPLE_CANCELLATION(scan_complete, iwl_umac_scan_complete, uid) +DEFINE_SIMPLE_CANCELLATION(scan_start, iwl_umac_scan_start, uid) DEFINE_SIMPLE_CANCELLATION(probe_resp_data, iwl_probe_resp_data_notif, mac_id) DEFINE_SIMPLE_CANCELLATION(uapsd_misbehaving_ap, iwl_uapsd_misbehaving_ap_notif,
@@ -397,6 +400,8 @@ const struct iwl_rx_handler iwl_mld_rx_handlers[] = { RX_HANDLER_SYNC) RX_HANDLER_NO_OBJECT(LEGACY_GROUP, BA_NOTIF, compressed_ba_notif, RX_HANDLER_SYNC) + RX_HANDLER_OF_SCAN(LEGACY_GROUP, SCAN_START_NOTIFICATION_UMAC, + scan_start_notif) RX_HANDLER_OF_SCAN(LEGACY_GROUP, SCAN_COMPLETE_UMAC, scan_complete_notif) RX_HANDLER_NO_OBJECT(LEGACY_GROUP, SCAN_ITERATION_COMPLETE_UMAC,
drivers/net/wireless/intel/iwlwifi/mld/scan.c +27 -3
@@ -473,6 +473,9 @@ iwl_mld_scan_get_cmd_gen_flags(struct iwl_mld *mld, params->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ) flags |=IWL_UMAC_SCAN_GEN_FLAGS_V2_TRIGGER_UHB_SCAN ; +if (scan_status ==IWL_MLD_SCAN_INT_MLO ) + flags |=IWL_UMAC_SCAN_GEN_FLAGS_V2_NTF_START ; +if (params->enable_6ghz_passive) flags |=IWL_UMAC_SCAN_GEN_FLAGS_V2_6GHZ_PASSIVE_SCAN ;
@@ -1817,9 +1820,6 @@ static void iwl_mld_int_mlo_scan_start(struct iwl_mld *mld, ret =_iwl_mld_single_scan_start (mld, vif, req, &ies,IWL_MLD_SCAN_INT_MLO ); -if (!ret) - mld->scan.last_mlo_scan_time =ktime_get_boottime_ns (); -IWL_DEBUG_SCAN (mld,"Internal MLO scan: ret=%d\n" , ret); }
@@ -1904,6 +1904,30 @@ void iwl_mld_handle_match_found_notif(struct iwl_mld *mld,ieee80211_sched_scan_results (mld->hw); } +void iwl_mld_handle_scan_start_notif (struct iwl_mld *mld, +struct iwl_rx_packet *pkt) +{ +struct iwl_umac_scan_complete *notif = (void *)pkt->data; +u32 uid =le32_to_cpu (notif->uid); + +if (IWL_FW_CHECK (mld, uid >=ARRAY_SIZE (mld->scan.uid_status), +"FW reports out-of-range scan UID %d\n" , uid)) +return ; + +if (IWL_FW_CHECK (mld, !(mld->scan.uid_status[uid] & mld->scan.status), +"FW reports scan UID %d we didn't trigger\n" , uid)) +return ; + +IWL_DEBUG_SCAN (mld,"Scan started: uid=%u type=%u\n" , uid, + mld->scan.uid_status[uid]); +if (IWL_FW_CHECK (mld, mld->scan.uid_status[uid] !=IWL_MLD_SCAN_INT_MLO , +"FW reports scan start notification %d we didn't trigger\n" , + mld->scan.uid_status[uid])) +return ; + + mld->scan.last_mlo_scan_start_time =ktime_get_boottime_ns (); +} +void iwl_mld_handle_scan_complete_notif (struct iwl_mld *mld,struct iwl_rx_packet *pkt) {
drivers/net/wireless/intel/iwlwifi/mld/scan.h +6 -3
@@ -27,6 +27,9 @@ int iwl_mld_sched_scan_start(struct iwl_mld *mld,void iwl_mld_handle_match_found_notif (struct iwl_mld *mld,struct iwl_rx_packet *pkt); +void iwl_mld_handle_scan_start_notif (struct iwl_mld *mld, +struct iwl_rx_packet *pkt); +void iwl_mld_handle_scan_complete_notif (struct iwl_mld *mld,struct iwl_rx_packet *pkt);
@@ -114,8 +117,8 @@ enum iwl_mld_traffic_load {* in jiffies. * @last_start_time_jiffies: stores the last start time in jiffies * (interface up/reset/resume). -* @last_mlo_scan_time: start time of the last MLO scan in nanoseconds since -* boot. +* @last_mlo_scan_start_time: start time of the last MLO scan in nanoseconds +* since boot. */ struct iwl_mld_scan {/* Add here fields that need clean up on restart */
@@ -136,7 +139,7 @@ struct iwl_mld_scan {void *cmd;unsigned long last_6ghz_passive_jiffies;unsigned long last_start_time_jiffies; -u64 last_mlo_scan_time; +u64 last_mlo_scan_start_time; };/**
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 30/311 wifi: iwlwifi: mvm: dont send a 6E related command when not supported
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Emmanuel Grumbach <[email protected]>
[ Upstream commit 323156c3541e23da7e582008a7ac30cd51b60acd ]
MCC_ALLOWED_AP_TYPE_CMD is related to 6E support. Do not send it if the device doesn't support 6E.
Apparently, the firmware is mistakenly advertising support for this command even on AX201 which does not support 6E and then the firmware crashes.
--- drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/net/wireless/intel/iwlwifi/mvm/fw.c +2 -1
@@ -470,7 +470,8 @@ static void iwl_mvm_uats_init(struct iwl_mvm *mvm) .dataflags[0] = IWL_HCMD_DFL_NOCOPY, }; -if (mvm->trans->mac_cfg->device_family <IWL_DEVICE_FAMILY_AX210 ) { +if (mvm->trans->mac_cfg->device_family <IWL_DEVICE_FAMILY_AX210 || + !mvm->trans->cfg->uhb_supported) {IWL_DEBUG_RADIO (mvm,"UATS feature is not supported\n" );return ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 31/311 wifi: iwlwifi: mld: correctly set wifi generation data
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johannes Berg <[email protected]>
[ Upstream commit 687a95d204e72e52f2e6bc7a994cc82f76b2678f ]
In each MAC context, the firmware expects the wifi generation data, i.e. whether or not HE/EHT (and in the future UHR) is enabled on that MAC.
However, this is currently handled wrong in two ways:
- EHT is only enabled when the interface is also an MLD, but we currently allow (despite the spec) connecting with EHT but without MLO.
- when HE or EHT are used by TDLS peers, the firmware needs to have them enabled regardless of the AP
Fix this by iterating setting up the data depending on the interface type:
- for AP, just set it according to the BSS configuration
- for monitor, set it according to HW capabilities
- otherwise, particularly for client, iterate all stations and then their links on the interface in question and set according to their capabilities, this handles the AP and TDLS peers. Re-calculate this whenever a TDLS station is marked associated or removed so that it's kept updated, for the AP it's already updated on assoc/disassoc.
--- .../net/wireless/intel/iwlwifi/mld/iface.c | 101 ++++++++++++------ .../net/wireless/intel/iwlwifi/mld/mac80211.c | 19 ++++ 2 files changed, 88 insertions(+), 32 deletions(-)
drivers/net/wireless/intel/iwlwifi/mld/iface.c +69 -32
@@ -111,14 +111,75 @@ static bool iwl_mld_is_nic_ack_enabled(struct iwl_mld *mld, IEEE80211_HE_MAC_CAP2_ACK_EN); } -static void iwl_mld_set_he_support (struct iwl_mld *mld, -struct ieee80211_vif *vif, -struct iwl_mac_config_cmd *cmd) +struct iwl_mld_mac_wifi_gen_sta_iter_data { +struct ieee80211_vif *vif; +struct iwl_mac_wifi_gen_support *support; +}; + +static void iwl_mld_mac_wifi_gen_sta_iter (void *_data, +struct ieee80211_sta *sta) { -if (vif->type ==NL80211_IFTYPE_AP ) - cmd->wifi_gen.he_ap_support =1 ; -else - cmd->wifi_gen.he_support =1 ; +struct iwl_mld_sta *mld_sta =iwl_mld_sta_from_mac80211 (sta); +struct iwl_mld_mac_wifi_gen_sta_iter_data *data = _data; +struct ieee80211_link_sta *link_sta; +unsigned int link_id; + +if (mld_sta->vif != data->vif) +return ; + +for_each_sta_active_link (data->vif, sta, link_sta, link_id) { +if (link_sta->he_cap.has_he) + data->support->he_support =1 ; +if (link_sta->eht_cap.has_eht) + data->support->eht_support =1 ; + } +} + +static void iwl_mld_set_wifi_gen (struct iwl_mld *mld, +struct ieee80211_vif *vif, +struct iwl_mac_wifi_gen_support *support) +{ +struct iwl_mld_mac_wifi_gen_sta_iter_data sta_iter_data = { + .vif = vif, + .support = support, + }; +struct ieee80211_bss_conf *link_conf; +unsigned int link_id; + +switch (vif->type) { +case NL80211_IFTYPE_MONITOR : +/* for sniffer, set to HW capabilities */ + support->he_support =1 ; + support->eht_support = mld->trans->cfg->eht_supported; +break ; +case NL80211_IFTYPE_AP : +/* for AP set according to the link configs */ +for_each_vif_active_link (vif, link_conf, link_id) { + support->he_ap_support |= link_conf->he_support; + support->eht_support |= link_conf->eht_support; + } +break ; +default : +/* +* If we have MLO enabled, then the firmware needs to enable +* address translation for the station(s) we add. That depends +* on having EHT enabled in firmware, which in turn depends on +* mac80211 in the iteration below. +* However, mac80211 doesn't enable capabilities on the AP STA +* until it has parsed the association response successfully, +* so set EHT (and HE as a pre-requisite for EHT) when the vif +* is an MLD. +*/ +if (ieee80211_vif_is_mld (vif)) { + support->he_support =1 ; + support->eht_support =1 ; + } + +ieee80211_iterate_stations_mtx (mld->hw, + iwl_mld_mac_wifi_gen_sta_iter, + &sta_iter_data); +break ; + } }/* fill the common part for all interface types */
@@ -128,8 +189,6 @@ static void iwl_mld_mac_cmd_fill_common(struct iwl_mld *mld, u32 action) {struct iwl_mld_vif *mld_vif =iwl_mld_vif_from_mac80211 (vif); -struct ieee80211_bss_conf *link_conf; -unsigned int link_id;lockdep_assert_wiphy (mld->wiphy);
@@ -147,29 +206,7 @@ static void iwl_mld_mac_cmd_fill_common(struct iwl_mld *mld, cmd->nic_not_ack_enabled =cpu_to_le32 (!iwl_mld_is_nic_ack_enabled (mld, vif)); -/* If we have MLO enabled, then the firmware needs to enable -* address translation for the station(s) we add. That depends -* on having EHT enabled in firmware, which in turn depends on -* mac80211 in the code below. -* However, mac80211 doesn't enable HE/EHT until it has parsed -* the association response successfully, so just skip all that -* and enable both when we have MLO. -*/ -if (ieee80211_vif_is_mld (vif)) { -iwl_mld_set_he_support (mld, vif, cmd); - cmd->wifi_gen.eht_support =1 ; -return ; - } - -for_each_vif_active_link (vif, link_conf, link_id) { -if (!link_conf->he_support) -continue ; - -iwl_mld_set_he_support (mld, vif, cmd); - -/* EHT, if supported, was already set above */ -break ; - } +iwl_mld_set_wifi_gen (mld, vif, &cmd->wifi_gen); } static void iwl_mld_fill_mac_cmd_sta(struct iwl_mld *mld,
drivers/net/wireless/intel/iwlwifi/mld/mac80211.c +19 -0
@@ -1690,6 +1690,16 @@ static int iwl_mld_move_sta_state_up(struct iwl_mld *mld,if (vif->type ==NL80211_IFTYPE_STATION )iwl_mld_link_set_2mhz_block (mld, vif, sta); + +if (sta->tdls) { +/* +* update MAC since wifi generation flags may change, +* we also update MAC on association to the AP via the +* vif assoc change +*/ +iwl_mld_mac_fw_action (mld, vif,FW_CTXT_ACTION_MODIFY ); + } +/* Now the link_sta's capabilities are set, update the FW */ iwl_mld_config_tlc (mld, vif, sta);
@@ -1799,6 +1809,15 @@ static int iwl_mld_move_sta_state_down(struct iwl_mld *mld,/* just removed last TDLS STA, so enable PM */ iwl_mld_update_mac_power (mld, vif, false); } + +if (sta->tdls) { +/* +* update MAC since wifi generation flags may change, +* we also update MAC on disassociation to the AP via +* the vif assoc change +*/ +iwl_mld_mac_fw_action (mld, vif,FW_CTXT_ACTION_MODIFY ); + } }else {return -EINVAL ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 32/311 wifi: ath11k: Pass the correct value of each TID during a stop AMPDU session
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Reshma Immaculate Rajkumar <[email protected]>
[ Upstream commit e225b36f83d7926c1f2035923bb0359d851fdb73 ]
During ongoing traffic, a request to stop an AMPDU session for one TID could incorrectly affect other active sessions. This can happen because an incorrect TID reference would be passed when updating the BA session state, causing the wrong session to be stopped. As a result, the affected session would be reduced to a minimal BA size, leading to a noticeable throughput degradation.
Fix this issue by passing the correct argument from ath11k_dp_rx_ampdu_stop() to ath11k_peer_rx_tid_reo_update() during a stop AMPDU session. Instead of passing peer->tx_tid, which is the base address of the array, corresponding to TID 0; pass the value of &peer->rx_tid[params->tid], where the different TID numbers are accounted for.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-02146-QCAHKSWPL_SILICONZ-1
--- drivers/net/wireless/ath/ath11k/dp_rx.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-)
drivers/net/wireless/ath/ath11k/dp_rx.c +7 -8
@@ -1,7 +1,7 @@// SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. -* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved. +* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. */ #include <linux/ieee80211.h>
@@ -1110,9 +1110,8 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,struct ath11k_base *ab = ar->ab;struct ath11k_peer *peer;struct ath11k_sta *arsta =ath11k_sta_to_arsta (params->sta); +struct dp_rx_tid *rx_tid;int vdev_id = arsta->arvif->vdev_id; -dma_addr_t paddr; -bool active;int ret;spin_lock_bh (&ab->base_lock);
@@ -1124,15 +1123,14 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,return -ENOENT ; } - paddr = peer->rx_tid[params->tid].paddr; - active = peer->rx_tid[params->tid].active; + rx_tid = &peer->rx_tid[params->tid]; -if (!active) { +if (!rx_tid->active) {spin_unlock_bh (&ab->base_lock);return 0 ; } - ret =ath11k_peer_rx_tid_reo_update (ar, peer, peer->rx_tid,1 ,0 , false); + ret =ath11k_peer_rx_tid_reo_update (ar, peer, rx_tid,1 ,0 , false);spin_unlock_bh (&ab->base_lock);if (ret) { ath11k_warn(ab, "failed to update reo for rx tid %d: %d\n",
@@ -1141,7 +1139,8 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar, } ret =ath11k_wmi_peer_rx_reorder_queue_setup (ar, vdev_id, - params->sta->addr, paddr, + params->sta->addr, + rx_tid->paddr, params->tid,1 ,1 );if (ret) ath11k_warn(ab, "failed to send wmi to delete rx tid %d\n",
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 33/311 cgroup: Wait for dying tasks to leave on rmdir
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tejun Heo <[email protected]>
[ Upstream commit 1b164b876c36c3eb5561dd9b37702b04401b0166 ]
a72f73c4dd9b ("cgroup: Don't expose dead tasks in cgroup") hid PF_EXITING tasks from cgroup.procs so that systemd doesn't see tasks that have already been reaped via waitpid(). However, the populated counter (nr_populated_csets) is only decremented when the task later passes through cgroup_task_dead() in finish_task_switch(). This means cgroup.procs can appear empty while the cgroup is still populated, causing rmdir to fail with -EBUSY.
Fix this by making cgroup_rmdir() wait for dying tasks to fully leave. If the cgroup is populated but all remaining tasks have PF_EXITING set (the task iterator returns none due to the existing filter), wait for a kick from cgroup_task_dead() and retry. The wait is brief as tasks are removed from the cgroup's css_set between PF_EXITING assertion in do_exit() and cgroup_task_dead() in finish_task_switch().
v2: cgroup_is_populated() true to false transition happens under css_set_lock
not cgroup_mutex, so retest under css_set_lock before sleeping to avoid missed wakeups (Sebastian).
--- include/linux/cgroup-defs.h | 3 ++ kernel/cgroup/cgroup.c | 86 +++++++++++++++++++++++++++++++++++-- 2 files changed, 86 insertions(+), 3 deletions(-)
include/linux/cgroup-defs.h +3 -0
@@ -609,6 +609,9 @@ struct cgroup {/* used to wait for offlining of csses */ wait_queue_head_t offline_waitq; +/* used by cgroup_rmdir() to wait for dying tasks to leave */ +wait_queue_head_t dying_populated_waitq; +/* used to schedule release agent */ struct work_struct release_agent_work;
kernel/cgroup/cgroup.c +83 -3
116 lines not on this page · raw message
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 34/311 selftests/cgroup: Dont require synchronous populated update on task exit
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tejun Heo <[email protected]>
[ Upstream commit 6680c162b4850976ee52b57372eddc4450c1d074 ]
test_cgcore_populated (test_core) and test_cgkill_{simple,tree,forkbomb} (test_kill) check cgroup.events "populated 0" immediately after reaping child tasks with waitpid(). This used to work because cgroup_task_exit() in do_exit() unlinked tasks from css_sets before exit_notify() woke up waitpid().
d245698d727a ("cgroup: Defer task cgroup unlink until after the task is done switching out") moved the unlink to cgroup_task_dead() in finish_task_switch(), which runs after exit_notify(). The populated counter is now decremented after the parent's waitpid() can return, so there is no longer a synchronous ordering guarantee. On PREEMPT_RT, where cgroup_task_dead() is further deferred through lazy irq_work, the race window is even larger.
The synchronous populated transition was never part of the cgroup interface contract - it was an implementation artifact. Use cg_read_strcmp_wait() which retries for up to 1 second, matching what these tests actually need to
verify: that the cgroup eventually becomes unpopulated after all tasks exit.
--- tools/testing/selftests/cgroup/lib/cgroup_util.c | 15 +++++++++++++++ .../selftests/cgroup/lib/include/cgroup_util.h | 2 ++ tools/testing/selftests/cgroup/test_core.c | 3 ++- tools/testing/selftests/cgroup/test_kill.c | 7 ++++--- 4 files changed, 23 insertions(+), 4 deletions(-)
tools/testing/selftests/cgroup/lib/cgroup_util.c +15 -0
@@ -123,6 +123,21 @@ int cg_read_strcmp(const char *cgroup, const char *control,return ret; } +int cg_read_strcmp_wait (const char *cgroup,const char *control, +const char *expected) +{ +int i, ret; + +for (i =0 ; i <100 ; i++) { + ret =cg_read_strcmp (cgroup, control, expected); +if (!ret) +return ret; +usleep (10000 ); + } + +return ret; +} +int cg_read_strstr (const char *cgroup,const char *control,const char *needle) {char buf[PAGE_SIZE ];
tools/testing/selftests/cgroup/lib/include/cgroup_util.h +2 -0
@@ -59,6 +59,8 @@ extern int cg_read(const char *cgroup, const char *control, char *buf, size_t len);extern int cg_read_strcmp (const char *cgroup,const char *control,const char *expected); +extern int cg_read_strcmp_wait (const char *cgroup,const char *control, +const char *expected);extern int cg_read_strstr (const char *cgroup,const char *control,const char *needle);extern long cg_read_long (const char *cgroup,const char *control);
tools/testing/selftests/cgroup/test_core.c +2 -1
@@ -233,7 +233,8 @@ static int test_cgcore_populated(const char *root)if (err) goto cleanup; -if (cg_read_strcmp (cg_test_d,"cgroup.events" ,"populated 0\n" )) +if (cg_read_strcmp_wait (cg_test_d,"cgroup.events" , +"populated 0\n" )) goto cleanup;/* Remove cgroup. */
tools/testing/selftests/cgroup/test_kill.c +4 -3
@@ -86,7 +86,7 @@ static int test_cgkill_simple(const char *root)wait_for_pid (pids[i]);if (ret ==KSFT_PASS && -cg_read_strcmp (cgroup,"cgroup.events" ,"populated 0\n" )) +cg_read_strcmp_wait (cgroup,"cgroup.events" ,"populated 0\n" )) ret =KSFT_FAIL ;if (cgroup)
@@ -190,7 +190,8 @@ static int test_cgkill_tree(const char *root)wait_for_pid (pids[i]);if (ret ==KSFT_PASS && -cg_read_strcmp (cgroup[0 ],"cgroup.events" ,"populated 0\n" )) +cg_read_strcmp_wait (cgroup[0 ],"cgroup.events" , +"populated 0\n" )) ret =KSFT_FAIL ;for (i =9 ; i >=0 && cgroup[i]; i--) {
@@ -251,7 +252,7 @@ static int test_cgkill_forkbomb(const char *root)wait_for_pid (pid);if (ret ==KSFT_PASS && -cg_read_strcmp (cgroup,"cgroup.events" ,"populated 0\n" )) +cg_read_strcmp_wait (cgroup,"cgroup.events" ,"populated 0\n" )) ret =KSFT_FAIL ;if (cgroup)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 35/311 cgroup: Fix cgroup_drain_dying() testing the wrong condition
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tejun Heo <[email protected]>
[ Upstream commit 4c56a8ac6869855866de0bb368a4189739e1d24f ]
cgroup_drain_dying() was using cgroup_is_populated() to test whether there are dying tasks to wait for. cgroup_is_populated() tests nr_populated_csets, nr_populated_domain_children and nr_populated_threaded_children, but cgroup_drain_dying() only needs to care about this cgroup's own tasks - whether there are children is cgroup_destroy_locked()'s concern.
This caused hangs during shutdown. When systemd tried to rmdir a cgroup that had no direct tasks but had a populated child, cgroup_drain_dying() would enter its wait loop because cgroup_is_populated() was true from nr_populated_domain_children. The task iterator found nothing to wait for, yet the populated state never cleared because it was driven by live tasks in the child cgroup.
Fix it by using cgroup_has_tasks() which only tests nr_populated_csets.
v3: Fix cgroup_is_populated() -> cgroup_has_tasks() (Sebastian).
v2: https://lore.kernel.org/r/[email protected]
--- kernel/cgroup/cgroup.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-)
kernel/cgroup/cgroup.c +22 -20
@@ -6229,20 +6229,22 @@ static int cgroup_destroy_locked(struct cgroup *cgrp)* cgroup_drain_dying - wait for dying tasks to leave before rmdir * @cgrp: the cgroup being removed * -* The PF_EXITING filter in css_task_iter_advance() hides exiting tasks from -* cgroup.procs so that userspace (e.g. systemd) doesn't see tasks that have -* already been reaped via waitpid(). However, the populated counter -* (nr_populated_csets) is only decremented when the task later passes through +* cgroup.procs and cgroup.threads use css_task_iter which filters out +* PF_EXITING tasks so that userspace doesn't see tasks that have already been +* reaped via waitpid(). However, cgroup_has_tasks() - which tests whether the +* cgroup has non-empty css_sets - is only updated when dying tasks pass through * cgroup_task_dead() in finish_task_switch(). This creates a window where -* cgroup.procs appears empty but cgroup_is_populated() is still true, causing -* rmdir to fail with -EBUSY. +* cgroup.procs reads empty but cgroup_has_tasks() is still true, making rmdir +* fail with -EBUSY from cgroup_destroy_locked() even though userspace sees no +* tasks. +* +* This function aligns cgroup_has_tasks() with what userspace can observe. If +* cgroup_has_tasks() but the task iterator sees nothing (all remaining tasks are +* PF_EXITING), we wait for cgroup_task_dead() to finish processing them. As the +* window between PF_EXITING and cgroup_task_dead() is short, the wait is brief. * -* This function bridges that gap. If the cgroup is populated but all remaining -* tasks have PF_EXITING set, we wait for cgroup_task_dead() to process them. -* Tasks are removed from the cgroup's css_set in cgroup_task_dead() called from -* finish_task_switch(). As the window between PF_EXITING and cgroup_task_dead() -* is short, the number of PF_EXITING tasks on the list is small and the wait -* is brief. +* This function only concerns itself with this cgroup's own dying tasks. +* Whether the cgroup has children is cgroup_destroy_locked()'s problem. * * Each cgroup_task_dead() kicks the waitqueue via cset->cgrp_links, and we * retry the full check from scratch.
@@ -6258,7 +6260,7 @@ static int cgroup_drain_dying(struct cgroup *cgrp)lockdep_assert_held (&cgroup_mutex); retry: -if (!cgroup_is_populated (cgrp)) +if (!cgroup_has_tasks (cgrp))return 0 ;/* Same iterator as cgroup.threads - if any task is visible, it's busy */
@@ -6273,15 +6275,15 @@ static int cgroup_drain_dying(struct cgroup *cgrp)* All remaining tasks are PF_EXITING and will pass through * cgroup_task_dead() shortly. Wait for a kick and retry. * -* cgroup_is_populated() can't transition from false to true while -* we're holding cgroup_mutex, but the true to false transition -* happens under css_set_lock (via cgroup_task_dead()). We must -* retest and prepare_to_wait() under css_set_lock. Otherwise, the -* transition can happen between our first test and -* prepare_to_wait(), and we sleep with no one to wake us. +* cgroup_has_tasks() can't transition from false to true while we're +* holding cgroup_mutex, but the true to false transition happens +* under css_set_lock (via cgroup_task_dead()). We must retest and +* prepare_to_wait() under css_set_lock. Otherwise, the transition +* can happen between our first test and prepare_to_wait(), and we +* sleep with no one to wake us. */ spin_lock_irq (&css_set_lock); -if (!cgroup_is_populated (cgrp)) { +if (!cgroup_has_tasks (cgrp)) {spin_unlock_irq (&css_set_lock);return 0 ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 36/311 crypto: caam - fix DMA corruption on long hmac keys
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Horia Geantă <[email protected]>
[ Upstream commit 5ddfdcbe10dc5f97afc4e46ca22be2be717e8caf ]
When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory.
The rounding was performed, but never actually used for the allocation. Fix this by replacing kmemdup with kmalloc for a larger buffer, followed by memcpy.
--- drivers/crypto/caam/caamhash.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/crypto/caam/caamhash.c +2 -1
@@ -441,9 +441,10 @@ static int ahash_setkey(struct crypto_ahash *ahash,if (aligned_len < keylen)return -EOVERFLOW ; - hashed_key =kmemdup (key, keylen,GFP_KERNEL ); + hashed_key =kmalloc (aligned_len,GFP_KERNEL );if (!hashed_key)return -ENOMEM ; +memcpy (hashed_key, key, keylen); ret =hash_digest_key (ctx, &keylen, hashed_key, digestsize);if (ret) goto bad_free_key;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 37/311 crypto: caam - fix overflow on long hmac keys
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Horia Geantă <[email protected]>
[ Upstream commit 80688afb9c35b3934ce2d6be9973758915e2e0ef ]
When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory.
The copying is performed using kmemdup, however this leads to an overflow:
reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.
--- drivers/crypto/caam/caamalg_qi2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/crypto/caam/caamalg_qi2.c +2 -1
@@ -3326,9 +3326,10 @@ static int ahash_setkey(struct crypto_ahash *ahash, const u8 *key,if (aligned_len < keylen)return -EOVERFLOW ; - hashed_key =kmemdup (key, aligned_len,GFP_KERNEL ); + hashed_key =kmalloc (aligned_len,GFP_KERNEL );if (!hashed_key)return -ENOMEM ; +memcpy (hashed_key, key, keylen); ret =hash_digest_key (ctx, &keylen, hashed_key, digestsize);if (ret) goto bad_free_key;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 38/311 crypto: deflate - fix spurious -ENOSPC
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mikulas Patocka <[email protected]>
[ Upstream commit 6d89f743e57cb34e233a8217b394c7ee09abf225 ]
The code in deflate_decompress_one may erroneously return -ENOSPC even if it didn't run out of output space. The error happens under this condition:
- Suppose that there are two input pages, the compressed data fits into the first page and the zlib checksum is placed in the second page.
- The code iterates over the first page, decompresses the data and fully fills the destination buffer, zlib_inflate returns Z_OK becuse zlib hasn't seen the checksum yet.
- The outer do-while loop is iterated again, acomp_walk_next_src sets the input parameters to the second page containing the checksum.
- We go into the inner do-while loop, execute "dcur = acomp_walk_next_dst(&walk);". "dcur" is zero, so we break out of the loop and return -ENOSPC, despite the fact that the decompressed data fit into the destination buffer.
In order to fix this bug, this commit changes the logic when to report the -ENOSPC error. We report the error if the destination buffer is empty *and* if zlib_inflate didn't make any progress consuming the input buffer. If zlib_inflate consumes the trailing checksum, we see that it made progress and we will not return -ENOSPC.
--- crypto/deflate.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
crypto/deflate.c +7 -4
@@ -164,18 +164,21 @@ static int deflate_decompress_one(struct acomp_req *req,do {unsigned int dcur; +unsigned long avail_in; dcur =acomp_walk_next_dst (&walk); -if (!dcur) { - out_of_space = true; -break ; - } stream->avail_out = dcur; stream->next_out = walk.dst.virt.addr; + avail_in = stream->avail_in; ret =zlib_inflate (stream,Z_NO_FLUSH ); +if (!dcur && avail_in == stream->avail_in) { + out_of_space = true; +break ; + } + dcur -= stream->avail_out;acomp_walk_done_dst (&walk, dcur); }while (ret ==Z_OK && stream->avail_in);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 39/311 crypto: af-alg - fix NULL pointer dereference in scatterwalk
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Norbert Szetei <[email protected]>
[ Upstream commit 62397b493e14107ae82d8b80938f293d95425bcb ]
The AF_ALG interface fails to unmark the end of a Scatter/Gather List (SGL) when chaining a new af_alg_tsgl structure. If a sendmsg() fills an SGL exactly to MAX_SGL_ENTS, the last entry is marked as the end. A subsequent sendmsg() allocates a new SGL and chains it, but fails to clear the end marker on the previous SGL's last data entry.
This causes the crypto scatterwalk to hit a premature end, returning NULL on sg_next() and leading to a kernel panic during dereference.
Fix this by explicitly unmarking the end of the previous SGL when performing sg_chain() in af_alg_alloc_tsgl().
--- crypto/af_alg.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
crypto/af_alg.c +3 -1
@@ -623,8 +623,10 @@ static int af_alg_alloc_tsgl(struct sock *sk)sg_init_table (sgl->sg,MAX_SGL_ENTS +1 ); sgl->cur =0 ; -if (sg) +if (sg) { +sg_unmark_end (sg +MAX_SGL_ENTS -1 );sg_chain (sg,MAX_SGL_ENTS +1 , sgl->sg); + }list_add_tail (&sgl->list, &ctx->tsgl_list); }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 40/311 mpls: add seqcount to protect the platform_label{,s} pair
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sabrina Dubroca <[email protected]>
[ Upstream commit 629ec78ef8608d955ce217880cdc3e1873af3a15 ]
The RCU-protected codepaths (mpls_forward, mpls_dump_routes) can have an inconsistent view of platform_labels vs platform_label in case of a concurrent resize (resize_platform_label_table, under platform_mutex). This can lead to OOB accesses.
This patch adds a seqcount, so that we get a consistent snapshot.
Note that mpls_label_ok is also susceptible to this, so the check against RTA_DST in rtm_to_route_config, done outside platform_mutex, is not sufficient. This value gets passed to mpls_label_ok once more in both mpls_route_add and mpls_route_del, so there is no issue, but that additional check must not be removed.
--- include/net/netns/mpls.h | 1 + net/mpls/af_mpls.c | 29 +++++++++++++++++++++++++---- 2 files changed, 26 insertions(+), 4 deletions(-)
include/net/netns/mpls.h +1 -0
@@ -17,6 +17,7 @@ struct netns_mpls {size_t platform_labels;struct mpls_route __rcu *__rcu *platform_label;struct mutex platform_mutex; +seqcount_mutex_t platform_label_seq;struct ctl_table_header *ctl; };
net/mpls/af_mpls.c +25 -4
@@ -83,14 +83,30 @@ static struct mpls_route *mpls_route_input(struct net *net, unsigned int index)return mpls_dereference (net, platform_label[index]); } +static struct mpls_route __rcu **mpls_platform_label_rcu (struct net *net,size_t *platform_labels) +{ +struct mpls_route __rcu **platform_label; +unsigned int sequence; + +do { + sequence =read_seqcount_begin (&net->mpls.platform_label_seq); + platform_label =rcu_dereference (net->mpls.platform_label); + *platform_labels = net->mpls.platform_labels; + }while (read_seqcount_retry (&net->mpls.platform_label_seq, sequence)); + +return platform_label; +} +static struct mpls_route *mpls_route_input_rcu (struct net *net,unsigned int index) {struct mpls_route __rcu **platform_label; +size_t platform_labels; + + platform_label =mpls_platform_label_rcu (net, &platform_labels); -if (index >= net->mpls.platform_labels) +if (index >= platform_labels)return NULL ; - platform_label =rcu_dereference (net->mpls.platform_label);return rcu_dereference (platform_label[index]); }
@@ -2240,8 +2256,7 @@ static int mpls_dump_routes(struct sk_buff *skb, struct netlink_callback *cb)if (index <MPLS_LABEL_FIRST_UNRESERVED ) index =MPLS_LABEL_FIRST_UNRESERVED ; - platform_label =rcu_dereference (net->mpls.platform_label); - platform_labels = net->mpls.platform_labels; + platform_label =mpls_platform_label_rcu (net, &platform_labels);if (filter.filter_set) flags |=NLM_F_DUMP_FILTERED ;
@@ -2645,8 +2660,12 @@ static int resize_platform_label_table(struct net *net, size_t limit) }/* Update the global pointers */ +local_bh_disable (); +write_seqcount_begin (&net->mpls.platform_label_seq); net->mpls.platform_labels = limit;rcu_assign_pointer (net->mpls.platform_label, labels); +write_seqcount_end (&net->mpls.platform_label_seq); +local_bh_enable ();mutex_unlock (&net->mpls.platform_mutex);
@@ -2728,6 +2747,8 @@ static __net_init int mpls_net_init(struct net *net)int i;mutex_init (&net->mpls.platform_mutex); +seqcount_mutex_init (&net->mpls.platform_label_seq, &net->mpls.platform_mutex); + net->mpls.platform_labels =0 ; net->mpls.platform_label =NULL ; net->mpls.ip_ttl_propagate =1 ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 41/311 net: mana: Fix RX skb truesize accounting
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dipayaan Roy <[email protected]>
[ Upstream commit f73896b4197ed53cf0894657c899265ef7c86b7a ]
MANA passes rxq->alloc_size to napi_build_skb() for all RX buffers. It is correct for fragment-backed RX buffers, where alloc_size matches the actual backing allocation used for each packet buffer. However, in the non-fragment RX path mana allocates a full page, or a higher-order page, per RX buffer. In that case alloc_size only reflects the usable packet area and not the actual backing memory.
This causes napi_build_skb() to underestimate the skb backing allocation in the single-buffer RX path, so skb->truesize is derived from a value smaller than the real RX buffer allocation.
Fix this by updating alloc_size in the non-fragment RX path to the actual backing allocation size before it is passed to napi_build_skb().
--- drivers/net/ethernet/microsoft/mana/mana_en.c | 7 +++++++ 1 file changed, 7 insertions(+)
drivers/net/ethernet/microsoft/mana/mana_en.c +7 -0
@@ -737,6 +737,13 @@ static void mana_get_rxbuf_cfg(struct mana_port_context *apc, } *frag_count =1 ; + +/* In the single-buffer path, napi_build_skb() must see the +* actual backing allocation size so skb->truesize reflects +* the full page (or higher-order page), not just the usable +* packet area. +*/ + *alloc_size =PAGE_SIZE <<get_order (*alloc_size);return ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 42/311 netdevsim: fix build if SKB_EXTENSIONS=n
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Qingfang Deng <[email protected]>
[ Upstream commit 57a04a13aac1f247d171c3f3aef93efc69e6979e ]
__skb_ext_put() is not declared if SKB_EXTENSIONS is not enabled, which causes a build error:
drivers/net/netdevsim/netdev.c: In function 'nsim_forward_skb':drivers/net/netdevsim/netdev.c:114:25: error: implicit declaration of function '__skb_ext_put'; did you mean 'skb_ext_put'? [-Werror=implicit-function-declaration]
114 | __skb_ext_put(psp_ext);
| ^~~~~~~~~~~~~
| skb_ext_putcc1: some warnings being treated as errors
Add a stub to fix the build.
--- include/linux/skbuff.h | 1 + 1 file changed, 1 insertion(+)
include/linux/skbuff.h +1 -0
@@ -5093,6 +5093,7 @@ static inline bool skb_has_extensions(struct sk_buff *skb) return unlikely(skb->active_extensions); }#else +static inline void __skb_ext_put (struct skb_ext *ext) {}static inline void skb_ext_put (struct sk_buff *skb) {}static inline void skb_ext_reset (struct sk_buff *skb) {}static inline void skb_ext_del (struct sk_buff *skb,int unused) {}
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 43/311 net: fec: fix the PTP periodic output sysfs interface
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Buday Csaba <[email protected]>
[ Upstream commit e8e44c98f789dee45cfd24ffb9d4936e0606d7c6 ]
When the PPS channel configuration was implemented, the channel index for the periodic outputs was configured as the hardware channel number.
The sysfs interface uses a logical channel index, and rejects numbers greater than n_per_out (see period_store() in ptp_sysfs.c). That property was left at 1, since the driver implements channel selection, not simultaneous operation of multiple PTP hardware timer channels.
A second check in fec_ptp_enable() returns -EOPNOTSUPP when the two channel numbers disagree, making channels 1..3 unusable from sysfs.
Fix by removing this redundant check in the FEC PTP driver.
--- drivers/net/ethernet/freescale/fec_ptp.c | 3 --- 1 file changed, 3 deletions(-)
drivers/net/ethernet/freescale/fec_ptp.c +0 -3
@@ -545,9 +545,6 @@ static int fec_ptp_enable(struct ptp_clock_info *ptp,if (rq->perout.flags)return -EOPNOTSUPP ; -if (rq->perout.index != fep->pps_channel) -return -EOPNOTSUPP ; - period.tv_sec = rq->perout.period.sec; period.tv_nsec = rq->perout.period.nsec; period_ns =timespec64_to_ns (&period);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 44/311 net: enetc: reset PIR and CIR if they are not equal when initializing TX ring
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Fang <[email protected]>
[ Upstream commit 0239fd701d33475a39428daa3dc627407cd417a6 ]
Currently the driver does not reset the producer index register (PIR) and consumer index register (CIR) when initializing a TX BD ring. The driver only reads the PIR and CIR and initializes the software indexes. If the TX BD ring is reinitialized when it still contains unsent frames, its PIR and CIR will not be equal after the reinitialization. However, the BDs between CIR and PIR have been freed and become invalid and this can lead to a hardware malfunction, causing the TX BD ring will not work properly.
For ENETC v4, it supports software to set the PIR and CIR, so the driver can reset these two registers if they are not equal when reinitializing the TX BD ring. Therefore, add this solution for ENETC v4. Note that this patch does not work for ENETC v1 because it does not support software to set the PIR and CIR.
--- drivers/net/ethernet/freescale/enetc/enetc.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
drivers/net/ethernet/freescale/enetc/enetc.c +12 -1
@@ -2579,6 +2579,7 @@ EXPORT_SYMBOL_GPL(enetc_free_si_resources);static void enetc_setup_txbdr (struct enetc_hw *hw,struct enetc_bdr *tx_ring) { + struct enetc_si *si = container_of(hw, struct enetc_si, hw);int idx = tx_ring->index;u32 tbmr;
@@ -2592,10 +2593,20 @@ static void enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)enetc_txbdr_wr (hw, idx,ENETC_TBLENR ,ENETC_RTBLENR_LEN (tx_ring->bd_count)); -/* clearing PI/CI registers for Tx not supported, adjust sw indexes */ +/* For ENETC v1, clearing PI/CI registers for Tx not supported, +* adjust sw indexes +*/ tx_ring->next_to_use =enetc_txbdr_rd (hw, idx,ENETC_TBPIR ); tx_ring->next_to_clean =enetc_txbdr_rd (hw, idx,ENETC_TBCIR ); +if (tx_ring->next_to_use != tx_ring->next_to_clean && + !is_enetc_rev1 (si)) { + tx_ring->next_to_use =0 ; + tx_ring->next_to_clean =0 ; +enetc_txbdr_wr (hw, idx,ENETC_TBPIR ,0 ); +enetc_txbdr_wr (hw, idx,ENETC_TBCIR ,0 ); + } +/* enable Tx ints by setting pkt thr to 1 */ enetc_txbdr_wr (hw, idx,ENETC_TBICR0 ,ENETC_TBICR0_ICEN |0x1 );
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 45/311 net: enetc: add graceful stop to safely reinitialize the TX Ring
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Fang <[email protected]>
[ Upstream commit 2725d84efe2582c0a4b907e74a689d26b2dbd382 ]
For ENETC v4, the PIR and CIR will be reset if they are not equal when reinitializing the TX BD ring. However, resetting the PIR and CIR alone is insufficient. When a link-down event occurs while the TX BD ring is transmitting frames, subsequent reinitialization of the TX BD ring may cause it to malfunction. For example, the below steps can reproduce the problem.
1. Unplug the cable when the TX BD ring is busy transmitting frames.
2. Disable the network interface (ifconfig eth0 down).
3. Re-enable the network interface (ifconfig eth0 up).
4. Plug in the cable, the TX BD ring may fail to transmit packets.
When the link-down event occurs, enetc4_pl_mac_link_down() only clears PMa_COMMAND_CONFIG[TX_EN] to disable MAC transmit data path. It doesn't set PORT[TXDIS] to 1 to flush the TX BD ring. Therefore, reinitializing the TX BD ring at this point is unsafe. To safely reinitialize the TX BD ring after a link-down event, we checked with the NETC IP team, a proper Ethernet MAC graceful stop is necessary. Therefore, add the Ethernet MAC graceful stop to the link-down event handler enetc4_pl_mac_link_down().
--- .../net/ethernet/freescale/enetc/enetc4_hw.h | 11 ++ .../net/ethernet/freescale/enetc/enetc4_pf.c | 111 +++++++++++++++--- 2 files changed, 108 insertions(+), 14 deletions(-)
drivers/net/ethernet/freescale/enetc/enetc4_hw.h +11 -0
@@ -134,6 +134,12 @@/* Port operational register */ #define ENETC4_POR 0x4100 +#define POR_TXDIS BIT(0) +#define POR_RXDIS BIT(1) + +/* Port status register */ +#define ENETC4_PSR 0x4104 +#define PSR_RX_BUSY BIT(1)/* Port traffic class a transmit maximum SDU register */ #define ENETC4_PTCTMSDUR (a) ((a) * 0x20 + 0x4208)
@@ -173,6 +179,11 @@/* Port internal MDIO base address, use to access PCS */ #define ENETC4_PM_IMDIO_BASE 0x5030 +/* Port MAC 0/1 Interrupt Event Register */ +#define ENETC4_PM_IEVENT (mac) (0x5040 + (mac) * 0x400) +#define PM_IEVENT_TX_EMPTY BIT(5) +#define PM_IEVENT_RX_EMPTY BIT(6) +/* Port MAC 0/1 Pause Quanta Register */ #define ENETC4_PM_PAUSE_QUANTA (mac) (0x5054 + (mac) * 0x400)
drivers/net/ethernet/freescale/enetc/enetc4_pf.c +97 -14
146 lines not on this page · raw message
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 46/311 net: enetc: do not access non-existent registers on pseudo MAC
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Fang <[email protected]>
[ Upstream commit f2df9567b123145a07ee4ea7440e233f5d0232cc ]
The ENETC4_PM_IEVENT and ENETC4_PM_CMD_CFG registers do not exist on the ENETC pseudo MAC, so the driver should prevent from accessing them.
--- drivers/net/ethernet/freescale/enetc/enetc4_pf.c | 7 +++++++ 1 file changed, 7 insertions(+)
drivers/net/ethernet/freescale/enetc/enetc4_pf.c +7 -0
@@ -814,6 +814,9 @@ static void enetc4_mac_tx_graceful_stop(struct enetc_pf *pf) val |=POR_TXDIS ;enetc_port_wr (hw,ENETC4_POR , val); +if (enetc_is_pseudo_mac (si)) +return ; +enetc4_mac_wait_tx_empty (si,0 );if (si->hw_features &ENETC_SI_F_QBU )enetc4_mac_wait_tx_empty (si,1 );
@@ -856,6 +859,9 @@ static void enetc4_mac_rx_graceful_stop(struct enetc_pf *pf)struct enetc_si *si = pf->si;u32 val; +if (enetc_is_pseudo_mac (si)) + goto check_rx_busy; +if (si->hw_features &ENETC_SI_F_QBU ) { val =enetc_port_rd (hw,ENETC4_PM_CMD_CFG (1 )); val &= ~PM_CMD_CFG_RX_EN ;
@@ -868,6 +874,7 @@ static void enetc4_mac_rx_graceful_stop(struct enetc_pf *pf)enetc_port_wr (hw,ENETC4_PM_CMD_CFG (0 ), val);enetc4_mac_wait_rx_empty (si,0 ); +check_rx_busy: if (read_poll_timeout(enetc_port_rd, val, !(val & PSR_RX_BUSY), 100, 10000, false, hw,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 47/311 net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiayuan Chen <[email protected]>
[ Upstream commit 2428083101f6883f979cceffa76cd8440751ffe6 ]
__radix_tree_create() allocates and links intermediate nodes into the tree one by one. If a subsequent allocation fails, the already-linked nodes remain in the tree with no corresponding leaf entry. These orphaned internal nodes are never reclaimed because radix_tree_for_each_slot() only visits slots containing leaf values.
The radix_tree API is deprecated in favor of xarray. As suggested by Matthew Wilcox, migrate qrtr_tx_flow from radix_tree to xarray instead of fixing the radix_tree itself [1]. xarray properly handles cleanup of internal nodes — xa_destroy() frees all internal xarray nodes when the qrtr_node is released, preventing the leak.
[1] https://lore.kernel.org/all/[email protected]/T/
--- net/qrtr/af_qrtr.c | 31 +++++++++++++------------------ 1 file changed, 13 insertions(+), 18 deletions(-)
net/qrtr/af_qrtr.c +13 -18
@@ -118,7 +118,7 @@ static DEFINE_XARRAY_ALLOC(qrtr_ports);* @ep: endpoint * @ref: reference count for node * @nid: node id -* @qrtr_tx_flow: tree of qrtr_tx_flow, keyed by node << 32 | port +* @qrtr_tx_flow: xarray of qrtr_tx_flow, keyed by node << 32 | port * @qrtr_tx_lock: lock for qrtr_tx_flow inserts * @rx_queue: receive queue * @item: list item for broadcast list
@@ -129,7 +129,7 @@ struct qrtr_node {struct kref ref;unsigned int nid; -struct radix_tree_root qrtr_tx_flow; +struct xarray qrtr_tx_flow;struct mutex qrtr_tx_lock;/* for qrtr_tx_flow */ struct sk_buff_head rx_queue;
@@ -172,6 +172,7 @@ static void __qrtr_node_release(struct kref *kref)struct qrtr_tx_flow *flow;unsigned long flags;void __rcu **slot; +unsigned long index;spin_lock_irqsave (&qrtr_nodes_lock, flags);/* If the node is a bridge for other nodes, there are possibly
@@ -189,11 +190,9 @@ static void __qrtr_node_release(struct kref *kref)skb_queue_purge (&node->rx_queue);/* Free tx flow counters */ -radix_tree_for_each_slot (slot, &node->qrtr_tx_flow, &iter,0 ) { - flow = *slot; -radix_tree_iter_delete (&node->qrtr_tx_flow, &iter, slot); +xa_for_each (&node->qrtr_tx_flow, index, flow)kfree (flow); - } +xa_destroy (&node->qrtr_tx_flow);kfree (node); }
@@ -228,9 +227,7 @@ static void qrtr_tx_resume(struct qrtr_node *node, struct sk_buff *skb) key = remote_node <<32 | remote_port; -rcu_read_lock (); - flow =radix_tree_lookup (&node->qrtr_tx_flow, key); -rcu_read_unlock (); + flow =xa_load (&node->qrtr_tx_flow, key);if (flow) {spin_lock (&flow->resume_tx.lock); flow->pending =0 ;
@@ -269,12 +266,13 @@ static int qrtr_tx_wait(struct qrtr_node *node, int dest_node, int dest_port,return 0 ;mutex_lock (&node->qrtr_tx_lock); - flow =radix_tree_lookup (&node->qrtr_tx_flow, key); + flow =xa_load (&node->qrtr_tx_flow, key);if (!flow) { flow =kzalloc (sizeof (*flow),GFP_KERNEL );if (flow) {init_waitqueue_head (&flow->resume_tx); -if (radix_tree_insert (&node->qrtr_tx_flow, key, flow)) { +if (xa_err (xa_store (&node->qrtr_tx_flow, key, flow, +GFP_KERNEL ))) {kfree (flow); flow =NULL ; }
@@ -326,9 +324,7 @@ static void qrtr_tx_flow_failed(struct qrtr_node *node, int dest_node,unsigned long key = (u64 )dest_node <<32 | dest_port;struct qrtr_tx_flow *flow; -rcu_read_lock (); - flow =radix_tree_lookup (&node->qrtr_tx_flow, key); -rcu_read_unlock (); + flow =xa_load (&node->qrtr_tx_flow, key);if (flow) {spin_lock_irq (&flow->resume_tx.lock); flow->tx_failed =1 ;
@@ -599,7 +595,7 @@ int qrtr_endpoint_register(struct qrtr_endpoint *ep, unsigned int nid) node->nid =QRTR_EP_NID_AUTO ; node->ep = ep; -INIT_RADIX_TREE (&node->qrtr_tx_flow,GFP_KERNEL ); +xa_init (&node->qrtr_tx_flow);mutex_init (&node->qrtr_tx_lock);qrtr_node_assign (node, nid);
@@ -627,6 +623,7 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep)struct qrtr_tx_flow *flow;struct sk_buff *skb;unsigned long flags; +unsigned long index;void __rcu **slot;mutex_lock (&node->ep_lock);
@@ -649,10 +646,8 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep)/* Wake up any transmitters waiting for resume-tx from the node */ mutex_lock (&node->qrtr_tx_lock); -radix_tree_for_each_slot (slot, &node->qrtr_tx_flow, &iter,0 ) { - flow = *slot; +xa_for_each (&node->qrtr_tx_flow, index, flow)wake_up_interruptible_all (&flow->resume_tx); - }mutex_unlock (&node->qrtr_tx_lock);qrtr_node_release (node);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 48/311 net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yochai Eisenrich <[email protected]>
[ Upstream commit ae05340ccaa9d347fe85415609e075545bec589f ]
When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data
The fix is simple, just zeroes the padding fields.
--- net/ipv6/ndisc.c | 3 +++ 1 file changed, 3 insertions(+)
net/ipv6/ndisc.c +3 -0
@@ -1209,6 +1209,9 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt) ndmsg->nduseropt_icmp_type = icmp6h->icmp6_type; ndmsg->nduseropt_icmp_code = icmp6h->icmp6_code; ndmsg->nduseropt_opts_len = opt->nd_opt_len <<3 ; + ndmsg->nduseropt_pad1 =0 ; + ndmsg->nduseropt_pad2 =0 ; + ndmsg->nduseropt_pad3 =0 ;memcpy (ndmsg +1 , opt, opt->nd_opt_len <<3 );
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 49/311 iommupt/amdv1: mark amdv1pt_install_leaf_entry as __always_inline
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sherry Yang <[email protected]>
[ Upstream commit 8b72aa5704c77380742346d4ac755b074b7f9eaa ]
After enabling CONFIG_GCOV_KERNEL and CONFIG_GCOV_PROFILE_ALL, following build failure is observed under GCC 14.2.1:
In function 'amdv1pt_install_leaf_entry',
inlined from '__do_map_single_page' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:650:3,
inlined from '__map_single_page0' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:661:1,
inlined from 'pt_descend' at drivers/iommu/generic_pt/fmt/../pt_iter.h:391:9,
inlined from '__do_map_single_page' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:657:10,
inlined from '__map_single_page1.constprop' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:661:1:
././include/linux/compiler_types.h:706:45: error: call to '__compiletime_assert_71' declared with attribute error: FIELD_PREP: value too large for the field
706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
|......
drivers/iommu/generic_pt/fmt/amdv1.h:220:26: note: in expansion of macro 'FIELD_PREP'
220 | FIELD_PREP(AMDV1PT_FMT_OA,
| ^~~~~~~~~~In the path '__do_map_single_page()', level 0 always invokes 'pt_install_leaf_entry(&pts, map->oa, PAGE_SHIFT, …)'. At runtime that lands in the 'if (oasz_lg2 == isz_lg2)' arm of 'amdv1pt_install_leaf_entry()'; the contiguous-only 'else' block is unreachable for 4 KiB pages.
With CONFIG_GCOV_KERNEL + CONFIG_GCOV_PROFILE_ALL, the extra instrumentation changes GCC's inlining so that the "dead" 'else' branch still gets instantiated. The compiler constant-folds the contiguous OA expression, runs the 'FIELD_PREP()' compile-time check, and produces:
FIELD_PREP: value too large for the field
gcov-enabled builds therefore fail even though the code path never executes.
Fix this by marking amdv1pt_install_leaf_entry as __always_inline.
--- drivers/iommu/generic_pt/fmt/amdv1.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/iommu/generic_pt/fmt/amdv1.h +1 -1
@@ -191,7 +191,7 @@ static inline enum pt_entry_type amdv1pt_load_entry_raw(struct pt_state *pts) }#define pt_load_entry_raw amdv1pt_load_entry_raw -static inline void +static __always_inline voidamdv1pt_install_leaf_entry (struct pt_state *pts,pt_oaddr_t oa,unsigned int oasz_lg2,const struct pt_write_attrs *attrs)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 50/311 net/ipv6: ioam6: prevent schema length wraparound in trace fill
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pengpeng Hou <[email protected]>
[ Upstream commit 5e67ba9bb531e1ec6599a82a065dea9040b9ce50 ]
ioam6_fill_trace_data() stores the schema contribution to the trace length in a u8. With bit 22 enabled and the largest schema payload, sclen becomes 1 + 1020 / 4, wraps from 256 to 0, and bypasses the remaining-space check. __ioam6_fill_trace_data() then positions the write cursor without reserving the schema area but still copies the 4-byte schema header and the full schema payload, overrunning the trace buffer.
Keep sclen in an unsigned int so the remaining-space check and the write cursor calculation both see the full schema length.
--- net/ipv6/ioam6.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
net/ipv6/ioam6.c +2 -2
@@ -708,7 +708,7 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,struct ioam6_namespace *ns, struct ioam6_trace_hdr *trace, struct ioam6_schema *sc, - u8 sclen, bool is_input) + unsigned int sclen, bool is_input) { struct net_device *dev = skb_dst_dev(skb);struct timespec64 ts;
@@ -939,7 +939,7 @@ void ioam6_fill_trace_data(struct sk_buff *skb, bool is_input) {struct ioam6_schema *sc; -u8 sclen =0 ; +unsigned int sclen =0 ;/* Skip if Overflow flag is set */
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 51/311 tg3: Fix race for querying speed/duplex
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Bogendoerfer <[email protected]>
[ Upstream commit bb417456c7814d1493d98b7dd9c040bf3ce3b4ed ]
When driver signals carrier up via netif_carrier_on() its internal link_up state isn't updated immediately. This leads to inconsistent speed/duplex in /proc/net/bonding/bondX where the speed and duplex is shown as unknown while ethtool shows correct values. Fix this by using netif_carrier_ok() for link checking in get_ksettings function.
--- drivers/net/ethernet/broadcom/tg3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/broadcom/tg3.c +1 -1
@@ -12300,7 +12300,7 @@ static int tg3_get_link_ksettings(struct net_device *dev,ethtool_convert_legacy_u32_to_link_mode (cmd->link_modes.advertising, advertising); -if (netif_running (dev) && tp->link_up) { +if (netif_running (dev) &&netif_carrier_ok (dev)) { cmd->base.speed = tp->link_config.active_speed; cmd->base.duplex = tp->link_config.active_duplex; ethtool_convert_legacy_u32_to_link_mode(
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 52/311 net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatch
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Carlier <[email protected]>
[ Upstream commit 5597dd284ff8c556c0b00f6a34473677426e3f81 ]
emac_dispatch_skb_zc() allocates a new skb via napi_alloc_skb() but never copies the packet data from the XDP buffer into it. The skb is passed up the stack containing uninitialized heap memory instead of the actual received packet, leaking kernel heap contents to userspace.
Copy the received packet data from the XDP buffer into the skb using skb_copy_to_linear_data().
Additionally, remove the skb_mark_for_recycle() call since the skb is backed by the NAPI page frag allocator, not page_pool. Marking a non-page_pool skb for recycle causes the free path to return pages to a page_pool that does not own them, corrupting page_pool state.
The non-ZC path (emac_rx_packet) does not have these issues because it uses napi_build_skb() to wrap the existing page_pool page directly, requiring no copy, and correctly marks for recycle since the page comes from page_pool_dev_alloc_pages().
--- drivers/net/ethernet/ti/icssg/icssg_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/ti/icssg/icssg_common.c +1 -1
@@ -902,6 +902,7 @@ static void emac_dispatch_skb_zc(struct prueth_emac *emac, struct xdp_buff *xdp,skb_reserve (skb, headroom);skb_put (skb, pkt_len); +skb_copy_to_linear_data (skb, xdp->data, pkt_len); skb->dev = ndev;/* RX HW timestamp */
@@ -912,7 +913,6 @@ static void emac_dispatch_skb_zc(struct prueth_emac *emac, struct xdp_buff *xdp, skb->offload_fwd_mark = emac->offload_fwd_mark; skb->protocol =eth_type_trans (skb, ndev); -skb_mark_for_recycle (skb);napi_gro_receive (&emac->napi_rx, skb); ndev->stats.rx_bytes += pkt_len; ndev->stats.rx_packets++;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 53/311 ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
[ Upstream commit 86ab3e55673a7a49a841838776f1ab18d23a67b5 ]
Sashiko AI-review observed:
In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inet_skb_parm. When skb is cloned into skb2 and passed to icmp6_send(), it uses IP6CB(skb2).
IP6CB interprets the IPv4 inet_skb_parm as an inet6_skb_parm. The cipso offset in inet_skb_parm.opt directly overlaps with dsthao in inet6_skb_parm at offset 18.
If an attacker sends a forged ICMPv4 error with a CIPSO IP option, dsthao would be a non-zero offset. Inside icmp6_send(), mip6_addr_swap() is called and uses ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO).
This would scan the inner, attacker-controlled IPv6 packet starting at that offset, potentially returning a fake TLV without checking if the remaining packet length can hold the full 18-byte struct ipv6_destopt_hao.
Could mip6_addr_swap() then perform a 16-byte swap that extends past the end of the packet data into skb_shared_info?
Should the cb array also be cleared in ip6_err_gen_icmpv6_unreach() and ip6ip6_err() to prevent this?
This patch implements the first suggestion.
I am not sure if ip6ip6_err() needs to be changed. A separate patch would be better anyway.
--- net/ipv6/icmp.c | 3 +++ 1 file changed, 3 insertions(+)
net/ipv6/icmp.c +3 -0
@@ -871,6 +871,9 @@ int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type,if (!skb2)return 1 ; +/* Remove debris left by IPv4 stack. */ +memset (IP6CB (skb2),0 ,sizeof (*IP6CB (skb2))); +skb_dst_drop (skb2);skb_pull (skb2, nhs);skb_reset_network_header (skb2);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 54/311 ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
[ Upstream commit 2edfa31769a4add828a7e604b21cb82aaaa05925 ]
Oskar Kjos reported the following problem.
ip4ip6_err() calls icmp_send() on a cloned skb whose cb[] was written by the IPv6 receive path as struct inet6_skb_parm. icmp_send() passes IPCB(skb2) to __ip_options_echo(), which interprets that cb[] region as struct inet_skb_parm (IPv4). The layouts differ: inet6_skb_parm.nhoff at offset 14 overlaps inet_skb_parm.opt.rr, producing a non-zero rr value. __ip_options_echo() then reads optlen from attacker-controlled packet data at sptr[rr+1] and copies that many bytes into dopt->__data, a fixed 40-byte stack buffer (IP_OPTIONS_DATA_FIXED_SIZE).
To fix this we clear skb2->cb[], as suggested by Oskar Kjos.
Also add minimal IPv4 header validation (version == 4, ihl >= 5).
--- net/ipv6/ip6_tunnel.c | 5 +++++ 1 file changed, 5 insertions(+)
net/ipv6/ip6_tunnel.c +5 -0
@@ -601,11 +601,16 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,if (!skb2)return 0 ; +/* Remove debris left by IPv6 stack. */ +memset (IPCB (skb2),0 ,sizeof (*IPCB (skb2))); +skb_dst_drop (skb2);skb_pull (skb2, offset);skb_reset_network_header (skb2); eiph =ip_hdr (skb2); +if (eiph->version !=4 || eiph->ihl <5 ) + goto out;/* Try to guess incoming interface */ rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL, eiph->saddr,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 55/311 eth: fbnic: Account for page fragments when updating BDQ tail
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dimitri Daskalakis <[email protected]>
[ Upstream commit b38c55320bf85a84a4f04803c57b261fc87e9b4b ]
FBNIC supports fixed size buffers of 4K. When PAGE_SIZE > 4K, we fragment the page across multiple descriptors (FBNIC_BD_FRAG_COUNT). When refilling the BDQ, the correct number of entries are populated, but tail was only incremented by one. So on a system with 64K pages, HW would get one descriptor refilled for every 16 we populate.
Additionally, we program the ring size in the HW when enabling the BDQ. This was not accounting for page fragments, so on systems with 64K pages, the HW used 1/16th of the ring.
--- drivers/net/ethernet/meta/fbnic/fbnic_txrx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/net/ethernet/meta/fbnic/fbnic_txrx.c +3 -3
@@ -927,7 +927,7 @@ static void fbnic_fill_bdq(struct fbnic_ring *bdq)/* Force DMA writes to flush before writing to tail */ dma_wmb (); -writel (i, bdq->doorbell); +writel (i *FBNIC_BD_FRAG_COUNT , bdq->doorbell); } }
@@ -2548,7 +2548,7 @@ static void fbnic_enable_bdq(struct fbnic_ring *hpq, struct fbnic_ring *ppq) hpq->tail =0 ; hpq->head =0 ; - log_size =fls (hpq->size_mask); + log_size =fls (hpq->size_mask) +ilog2 (FBNIC_BD_FRAG_COUNT );/* Store descriptor ring address and size */ fbnic_ring_wr32 (hpq,FBNIC_QUEUE_BDQ_HPQ_BAL ,lower_32_bits (hpq->dma));
@@ -2560,7 +2560,7 @@ static void fbnic_enable_bdq(struct fbnic_ring *hpq, struct fbnic_ring *ppq)if (!ppq->size_mask) goto write_ctl; - log_size =fls (ppq->size_mask); + log_size =fls (ppq->size_mask) +ilog2 (FBNIC_BD_FRAG_COUNT );/* Add enabling of PPQ to BDQ control */ bdq_ctl |=FBNIC_QUEUE_BDQ_CTL_PPQ_ENABLE ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 56/311 bridge: br_nd_send: linearize skb before parsing ND options
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yang Yang <[email protected]>
[ Upstream commit a01aee7cafc575bb82f5529e8734e7052f9b16ea ]
br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request.
Its callers only guarantee that the ICMPv6 header and target address are available, so the option area can still be non-linear. Parsing ns->opt[] in that case can access data past the linear buffer.
Linearize request before option parsing and derive ns from the linear network header.
--- net/bridge/br_arp_nd_proxy.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
net/bridge/br_arp_nd_proxy.c +7 -5
@@ -251,12 +251,12 @@ struct nd_msg *br_is_nd_neigh_msg(const struct sk_buff *skb, struct nd_msg *msg)static void br_nd_send (struct net_bridge *br,struct net_bridge_port *p,struct sk_buff *request,struct neighbour *n, -__be16 vlan_proto,u16 vlan_tci,struct nd_msg *ns) +__be16 vlan_proto,u16 vlan_tci) {struct net_device *dev = request->dev;struct net_bridge_vlan_group *vg; +struct nd_msg *na, *ns;struct sk_buff *reply; -struct nd_msg *na;struct ipv6hdr *pip6;int na_olen =8 ;/* opt hdr + ETH_ALEN for target */ int ns_olen;
@@ -264,7 +264,7 @@ static void br_nd_send(struct net_bridge *br, struct net_bridge_port *p,u8 *daddr;u16 pvid; -if (!dev) +if (!dev ||skb_linearize (request))return ; len = LL_RESERVED_SPACE(dev) + sizeof(struct ipv6hdr) +
@@ -281,6 +281,8 @@ static void br_nd_send(struct net_bridge *br, struct net_bridge_port *p,skb_set_mac_header (reply,0 ); daddr =eth_hdr (request)->h_source; + ns = (struct nd_msg *)(skb_network_header (request) + +sizeof (struct ipv6hdr ));/* Do we need option processing ? */ ns_olen = request->len - (skb_network_offset(request) +
@@ -472,9 +474,9 @@ void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br,if (vid !=0 )br_nd_send (br, p, skb, n, skb->vlan_proto, -skb_vlan_tag_get (skb), msg); +skb_vlan_tag_get (skb));else -br_nd_send (br, p, skb, n,0 ,0 , msg); +br_nd_send (br, p, skb, n,0 ,0 ); replied = true; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 57/311 net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Xiang Mei <[email protected]>
[ Upstream commit 4576100b8cd03118267513cafacde164b498b322 ]
m2sm() converts a u32 slope to a u64 scaled value. For large inputs (e.g. m1=4000000000), the result can reach 2^32. rtsc_min() stores the difference of two such u64 values in a u32 variable dsm and uses it as a divisor. When the difference is exactly 2^32 the truncation yields zero, causing a divide-by-zero oops in the concave-curve intersection path:
Oops: divide error: 0000 RIP: 0010:rtsc_min (net/sched/sch_hfsc.c:601) Call Trace: init_ed (net/sched/sch_hfsc.c:629) hfsc_enqueue (net/sched/sch_hfsc.c:1569) [...]
Widen dsm to u64 and replace do_div() with div64_u64() so the full difference is preserved.
--- net/sched/sch_hfsc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
net/sched/sch_hfsc.c +2 -2
@@ -555,7 +555,7 @@ static void rtsc_min(struct runtime_sc *rtsc, struct internal_sc *isc, u64 x, u64 y) { u64 y1, y2, dx, dy; -u32 dsm; +u64 dsm;if (isc->sm1 <= isc->sm2) {/* service curve is convex */
@@ -598,7 +598,7 @@ rtsc_min(struct runtime_sc *rtsc, struct internal_sc *isc, u64 x, u64 y)*/ dx = (y1 - y) <<SM_SHIFT ; dsm = isc->sm1 - isc->sm2; -do_div (dx, dsm); + dx =div64_u64 (dx, dsm);/* * check if (x, y1) belongs to the 1st segment of rtsc. * if so, add the offset.
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 58/311 net: sfp: Fix Ubiquiti U-Fiber Instant SFP module on mvneta
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Marek Behún <[email protected]>
[ Upstream commit eeee5a710f26ce57807024ef330fe5a850eaecd8 ]
In commit 8110633db49d7de2 ("net: sfp-bus: allow SFP quirks to override Autoneg and pause bits") we moved the setting of Autoneg and pause bits before the call to SFP quirk when parsing SFP module support.
Since the quirk for Ubiquiti U-Fiber Instant SFP module zeroes the support bits and sets 1000baseX_Full only, the above mentioned commit changed the overall computed support from
1000baseX_Full, Autoneg, Pause, Asym_Pause
to just
1000baseX_Full.
This broke the SFP module for mvneta, which requires Autoneg for 1000baseX since commit c762b7fac1b249a9 ("net: mvneta: deny disabling autoneg for 802.3z modes").
Fix this by setting back the Autoneg, Pause and Asym_Pause bits in the quirk.
--- drivers/net/phy/sfp.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/net/phy/sfp.c +6 -1
@@ -480,11 +480,16 @@ static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id, {/* Ubiquiti U-Fiber Instant module claims that support all transceiver * types including 10G Ethernet which is not truth. So clear all claimed -* modes and set only one mode which module supports: 1000baseX_Full. +* modes and set only one mode which module supports: 1000baseX_Full, +* along with the Autoneg and pause bits. */ linkmode_zero (caps->link_modes);linkmode_set_bit (ETHTOOL_LINK_MODE_1000baseX_Full_BIT, caps->link_modes); +linkmode_set_bit (ETHTOOL_LINK_MODE_Autoneg_BIT, caps->link_modes); +linkmode_set_bit (ETHTOOL_LINK_MODE_Pause_BIT, caps->link_modes); +linkmode_set_bit (ETHTOOL_LINK_MODE_Asym_Pause_BIT, caps->link_modes); +phy_interface_zero (caps->interfaces);__set_bit (PHY_INTERFACE_MODE_1000BASEX , caps->interfaces); }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 59/311 net: enetc: check whether the RSS algorithm is Toeplitz
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Fang <[email protected]>
[ Upstream commit d389954a6cae7bf76b7b082ac3511d177b77ef2d ]
Both ENETC v1 and v4 only provide Toeplitz RSS support. This patch adds a validation check to reject attempts to configure other RSS algorithms, avoiding misleading configuration options for users.
--- drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 4 ++++ 1 file changed, 4 insertions(+)
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c +4 -0
@@ -795,6 +795,10 @@ static int enetc_set_rxfh(struct net_device *ndev,struct enetc_si *si = priv->si;int err =0 ; +if (rxfh->hfunc !=ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc !=ETH_RSS_HASH_TOP ) +return -EOPNOTSUPP ; +/* set hash key, if PF */ if (rxfh->key &&enetc_si_is_pf (si))enetc_set_rss_key (si, rxfh->key);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 60/311 net: enetc: do not allow VF to configure the RSS key
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Fang <[email protected]>
[ Upstream commit a142d139168cce8d5776245b5494c7f7f5d7fb7d ]
VFs do not have privilege to configure the RSS key because the registers are owned by the PF. Currently, if VF attempts to configure the RSS key, enetc_set_rxfh() simply skips the configuration and does not generate a warning, which may mislead users into thinking the feature is supported. To improve this situation, add a check to reject RSS key configuration on VFs.
--- drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c +5 -1
@@ -800,8 +800,12 @@ static int enetc_set_rxfh(struct net_device *ndev,return -EOPNOTSUPP ;/* set hash key, if PF */ -if (rxfh->key &&enetc_si_is_pf (si)) +if (rxfh->key) { +if (!enetc_si_is_pf (si)) +return -EOPNOTSUPP ; +enetc_set_rss_key (si, rxfh->key); + }/* set RSS table */ if (rxfh->indir)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 61/311 ALSA: usb-audio: Exclude Scarlett Solo 1st Gen from SKIP_IFACE_SETUP
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dag Smedberg <[email protected]>
[ Upstream commit f025ac8c698ac7d29eb3b5025bcdaf7ad675785d ]
Same issue that the Scarlett 2i2 1st Gen had:QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted audio on the Scarlett Solo 1st Gen (1235:801c).
--- sound/usb/quirks.c | 1 + 1 file changed, 1 insertion(+)
sound/usb/quirks.c +1 -0
@@ -2427,6 +2427,7 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_VALIDATE_RATES),DEVICE_FLG (0x1235 ,0x8006 ,0 ),/* Focusrite Scarlett 2i2 1st Gen */ DEVICE_FLG (0x1235 ,0x800a ,0 ),/* Focusrite Scarlett 2i4 1st Gen */ +DEVICE_FLG (0x1235 ,0x801c ,0 ),/* Focusrite Scarlett Solo 1st Gen */ VENDOR_FLG (0x1235 ,/* Focusrite Novation */ QUIRK_FLAG_SKIP_IFACE_SETUP ), VENDOR_FLG(0x1511, /* AURALiC */
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 62/311 ASoC: ep93xx: Fix unchecked clk_prepare_enable() and add rollback on failure
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jihed Chaibi <[email protected]>
[ Upstream commit 622363757b2286dd2c2984b0d80255cbb35a0495 ]
ep93xx_i2s_enable() calls clk_prepare_enable() on three clocks in sequence (mclk, sclk, lrclk) without checking the return value of any of them. If an intermediate enable fails, the clocks that were already enabled are never rolled back, leaking them until the next disable cycle — which may never come if the stream never started cleanly.
Change ep93xx_i2s_enable() from void to int. Add error checking after each clk_prepare_enable() call and unwind already-enabled clocks on failure. Propagate the error through ep93xx_i2s_startup() and ep93xx_i2s_resume(), both of which already return int.
--- sound/soc/cirrus/ep93xx-i2s.c | 34 ++++++++++++++++++++++++---------- 1 file changed, 24 insertions(+), 10 deletions(-)
sound/soc/cirrus/ep93xx-i2s.c +24 -10
@@ -91,16 +91,28 @@ static inline unsigned ep93xx_i2s_read_reg(struct ep93xx_i2s_info *info,return __raw_readl (info->regs + reg); } -static void ep93xx_i2s_enable (struct ep93xx_i2s_info *info,int stream) +static int ep93xx_i2s_enable (struct ep93xx_i2s_info *info,int stream) {unsigned base_reg; +int err;if ((ep93xx_i2s_read_reg (info,EP93XX_I2S_TX0EN ) &0x1 ) ==0 && (ep93xx_i2s_read_reg (info,EP93XX_I2S_RX0EN ) &0x1 ) ==0 ) {/* Enable clocks */ -clk_prepare_enable (info->mclk); -clk_prepare_enable (info->sclk); -clk_prepare_enable (info->lrclk); + err =clk_prepare_enable (info->mclk); +if (err) +return err; + err =clk_prepare_enable (info->sclk); +if (err) { +clk_disable_unprepare (info->mclk); +return err; + } + err =clk_prepare_enable (info->lrclk); +if (err) { +clk_disable_unprepare (info->sclk); +clk_disable_unprepare (info->mclk); +return err; + }/* Enable i2s */ ep93xx_i2s_write_reg (info,EP93XX_I2S_GLCTRL ,1 );
@@ -119,6 +131,8 @@ static void ep93xx_i2s_enable(struct ep93xx_i2s_info *info, int stream)ep93xx_i2s_write_reg (info,EP93XX_I2S_TXCTRL ,EP93XX_I2S_TXCTRL_TXEMPTY_LVL |EP93XX_I2S_TXCTRL_TXUFIE ); + +return 0 ; }static void ep93xx_i2s_disable (struct ep93xx_i2s_info *info,int stream)
@@ -195,9 +209,7 @@ static int ep93xx_i2s_startup(struct snd_pcm_substream *substream, {struct ep93xx_i2s_info *info =snd_soc_dai_get_drvdata (dai); -ep93xx_i2s_enable (info, substream->stream); - -return 0 ; +return ep93xx_i2s_enable (info, substream->stream); } static void ep93xx_i2s_shutdown(struct snd_pcm_substream *substream,
@@ -373,14 +385,16 @@ static int ep93xx_i2s_suspend(struct snd_soc_component *component)static int ep93xx_i2s_resume (struct snd_soc_component *component) {struct ep93xx_i2s_info *info =snd_soc_component_get_drvdata (component); +int err;if (!snd_soc_component_active (component))return 0 ; -ep93xx_i2s_enable (info,SNDRV_PCM_STREAM_PLAYBACK ); -ep93xx_i2s_enable (info,SNDRV_PCM_STREAM_CAPTURE ); + err =ep93xx_i2s_enable (info,SNDRV_PCM_STREAM_PLAYBACK ); +if (err) +return err; -return 0 ; +return ep93xx_i2s_enable (info,SNDRV_PCM_STREAM_CAPTURE ); }#else #define ep93xx_i2s_suspend NULL
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 63/311 ipv6: prevent possible UaF in addrconf_permanent_addr()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paolo Abeni <[email protected]>
[ Upstream commit fd63f185979b047fb22a0dfc6bd94d0cab6a6a70 ]
The mentioned helper try to warn the user about an exceptional condition, but the message is delivered too late, accessing the ipv6 after its possible deletion.
Reorder the statement to avoid the possible UaF; while at it, place the warning outside the idev->lock as it needs no protection.
--- net/ipv6/addrconf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
net/ipv6/addrconf.c +3 -3
@@ -3621,12 +3621,12 @@ static void addrconf_permanent_addr(struct net *net, struct net_device *dev)if ((ifp->flags &IFA_F_PERMANENT ) &&fixup_permanent_addr (net, idev, ifp) <0 ) {write_unlock_bh (&idev->lock); -in6_ifa_hold (ifp); -ipv6_del_addr (ifp); -write_lock_bh (&idev->lock);net_info_ratelimited ("%s: Failed to add prefix route for address %pI6c; dropping\n" , idev->dev->name, &ifp->addr); +in6_ifa_hold (ifp); +ipv6_del_addr (ifp); +write_lock_bh (&idev->lock); } }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 64/311 net: airoha: Add missing cleanup bits in airoha_qdma_cleanup_rx_queue()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lorenzo Bianconi <[email protected]>
[ Upstream commit 514aac3599879a7ed48b7dc19e31145beb6958ac ]
In order to properly cleanup hw rx QDMA queues and bring the device to the initial state, reset rx DMA queue head/tail index. Moreover, reset queued DMA descriptor fields.
--- drivers/net/ethernet/airoha/airoha_eth.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)
drivers/net/ethernet/airoha/airoha_eth.c +17 -1
@@ -794,18 +794,34 @@ static int airoha_qdma_init_rx_queue(struct airoha_queue *q,static void airoha_qdma_cleanup_rx_queue (struct airoha_queue *q) { -struct airoha_eth *eth = q->qdma->eth; +struct airoha_qdma *qdma = q->qdma; +struct airoha_eth *eth = qdma->eth; +int qid = q - &qdma->q_rx[0 ];while (q->queued) {struct airoha_queue_entry *e = &q->entry[q->tail]; +struct airoha_qdma_desc *desc = &q->desc[q->tail];struct page *page =virt_to_head_page (e->buf);dma_sync_single_for_cpu (eth->dev, e->dma_addr, e->dma_len,page_pool_get_dma_dir (q->page_pool));page_pool_put_full_page (q->page_pool, page, false); +/* Reset DMA descriptor */ +WRITE_ONCE (desc->ctrl,0 ); +WRITE_ONCE (desc->addr,0 ); +WRITE_ONCE (desc->data,0 ); +WRITE_ONCE (desc->msg0,0 ); +WRITE_ONCE (desc->msg1,0 ); +WRITE_ONCE (desc->msg2,0 ); +WRITE_ONCE (desc->msg3,0 ); + q->tail = (q->tail +1 ) % q->ndesc; q->queued--; } + + q->head = q->tail; +airoha_qdma_rmw (qdma,REG_RX_DMA_IDX (qid),RX_RING_DMA_IDX_MASK , +FIELD_PREP (RX_RING_DMA_IDX_MASK , q->tail)); }static int airoha_qdma_init_rx (struct airoha_qdma *qdma)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 65/311 net: introduce mangleid_features
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paolo Abeni <[email protected]>
[ Upstream commit 31c5a71d982b57df75858974634c2f0a338f2fc6 ]
Some/most devices implementing gso_partial need to disable the GSO partial features when the IP ID can't be mangled; to that extend each of them implements something alike the following[1]:
if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID)) features &= ~NETIF_F_TSO;
in the ndo_features_check() op, which leads to a bit of duplicate code.
Later patch in the series will implement GSO partial support for virtual devices, and the current status quo will require more duplicate code and a new indirect call in the TX path for them.
Introduce the mangleid_features mask, allowing the core to disable NIC features based on/requiring MANGLEID, without any further intervention from the driver.
The same functionality could be alternatively implemented adding a single boolean flag to the struct net_device, but would require an additional checks in ndo_features_check().
Also note that [1] is incorrect if the NIC additionally implements NETIF_F_GSO_UDP_L4, mangleid_features transparently handle even such a case.
Stable-dep-of: ddc748a391dd ("net: use skb_header_pointer() for TCPv4 GSO frag_off check")
--- include/linux/netdevice.h | 3 +++ net/core/dev.c | 5 ++++- 2 files changed, 7 insertions(+), 1 deletion(-)
include/linux/netdevice.h +3 -0
@@ -1833,6 +1833,8 @@ enum netdev_reg_state {* * @mpls_features: Mask of features inheritable by MPLS * @gso_partial_features: value(s) from NETIF_F_GSO\* +* @mangleid_features: Mask of features requiring MANGLEID, will be +* disabled together with the latter. * * @ifindex: interface index * @group: The group the device belongs to
@@ -2222,6 +2224,7 @@ struct net_device {netdev_features_t vlan_features;netdev_features_t hw_enc_features;netdev_features_t mpls_features; +netdev_features_t mangleid_features;unsigned int min_mtu;unsigned int max_mtu;
net/core/dev.c +4 -1
@@ -3819,7 +3819,7 @@ static netdev_features_t gso_features_check(const struct sk_buff *skb, inner_ip_hdr(skb) : ip_hdr(skb);if (!(iph->frag_off &htons (IP_DF ))) - features &= ~NETIF_F_TSO_MANGLEID ; + features &= ~dev->mangleid_features; }/* NETIF_F_IPV6_CSUM does not support IPv6 extension headers,
@@ -11411,6 +11411,9 @@ int register_netdevice(struct net_device *dev)if (dev->hw_enc_features &NETIF_F_TSO ) dev->hw_enc_features |=NETIF_F_TSO_MANGLEID ; +/* TSO_MANGLEID belongs in mangleid_features by definition */ + dev->mangleid_features |=NETIF_F_TSO_MANGLEID ; +/* Make NETIF_F_HIGHDMA inheritable to VLAN devices. */ dev->vlan_features |=NETIF_F_HIGHDMA ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 66/311 net: use skb_header_pointer() for TCPv4 GSO frag_off check
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Guoyu Su <[email protected]>
[ Upstream commit ddc748a391dd8642ba6b2e4fe22e7f2ddf84b7f0 ]
Syzbot reported a KMSAN uninit-value warning in gso_features_check() called from netif_skb_features() [1].
gso_features_check() reads iph->frag_off to decide whether to clear mangleid_features. Accessing the IPv4 header via ip_hdr()/inner_ip_hdr() can rely on skb header offsets that are not always safe for direct dereference on packets injected from PF_PACKET paths.
Use skb_header_pointer() for the TCPv4 frag_off check so the header read is robust whether data is already linear or needs copying.
[1] https://syzkaller.appspot.com/bug?extid=1543a7d954d9c6d00407
--- net/core/dev.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
net/core/dev.c +8 -3
@@ -3815,10 +3815,15 @@ static netdev_features_t gso_features_check(const struct sk_buff *skb,* segmentation-offloads.rst). */ if (skb_shinfo (skb)->gso_type &SKB_GSO_TCPV4 ) { -struct iphdr *iph = skb->encapsulation ? -inner_ip_hdr (skb) :ip_hdr (skb); +const struct iphdr *iph; +struct iphdr _iph; +int nhoff = skb->encapsulation ? +skb_inner_network_offset (skb) : +skb_network_offset (skb); -if (!(iph->frag_off &htons (IP_DF ))) + iph =skb_header_pointer (skb, nhoff,sizeof (_iph), &_iph); + +if (!iph || !(iph->frag_off &htons (IP_DF ))) features &= ~dev->mangleid_features; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 67/311 net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yochai Eisenrich <[email protected]>
[ Upstream commit e6e3eb5ee89ac4c163d46429391c889a1bb5e404 ]
When building netlink messages, tc_chain_fill_node() never initializes the tcm_info field of struct tcmsg. Since the allocation is not zeroed, kernel heap memory is leaked to userspace through this 4-byte field.
The fix simply zeroes tcm_info alongside the other fields that are already initialized.
--- net/sched/cls_api.c | 1 + 1 file changed, 1 insertion(+)
net/sched/cls_api.c +1 -0
@@ -2969,6 +2969,7 @@ static int tc_chain_fill_node(const struct tcf_proto_ops *tmplt_ops, tcm->tcm__pad1 =0 ; tcm->tcm__pad2 =0 ; tcm->tcm_handle =0 ; + tcm->tcm_info =0 ;if (block->q) { tcm->tcm_ifindex =qdisc_dev (block->q)->ifindex; tcm->tcm_parent = block->q->handle;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 68/311 bnxt_en: set backing store type from query type
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pengpeng Hou <[email protected]>
[ Upstream commit 4ee937107d52f9e5c350e4b5e629760e328b3d9f ]
bnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the firmware response in ctxm->type and later uses that value to index fixed backing-store metadata arrays such as ctx_arr[] and bnxt_bstore_to_trace[].
ctxm->type is fixed by the current backing-store query type and matches the array index of ctx->ctx_arr. Set ctxm->type from the current loop variable instead of depending on resp->type.
Also update the loop to advance type from next_valid_type in the for statement, which keeps the control flow simpler for non-valid and unchanged entries.
--- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
drivers/net/ethernet/broadcom/bnxt/bnxt.c +4 -4
@@ -8623,7 +8623,7 @@ static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)struct hwrm_func_backing_store_qcaps_v2_output *resp;struct hwrm_func_backing_store_qcaps_v2_input *req;struct bnxt_ctx_mem_info *ctx = bp->ctx; -u16 type; +u16 type, next_type =0 ;int rc; rc =hwrm_req_init (bp, req,HWRM_FUNC_BACKING_STORE_QCAPS_V2 );
@@ -8639,7 +8639,7 @@ static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp) resp =hwrm_req_hold (bp, req); -for (type =0 ; type <BNXT_CTX_V2_MAX ; ) { +for (type =0 ; type <BNXT_CTX_V2_MAX ; type = next_type) {struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type];u8 init_val, init_off, i;u32 max_entries;
@@ -8652,7 +8652,7 @@ static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)if (rc) goto ctx_done; flags =le32_to_cpu (resp->flags); - type =le16_to_cpu (resp->next_valid_type); + next_type =le16_to_cpu (resp->next_valid_type);if (!(flags &BNXT_CTX_MEM_TYPE_VALID )) {bnxt_free_one_ctx_mem (bp, ctxm, true);continue ;
@@ -8667,7 +8667,7 @@ static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp)else continue ; } - ctxm->type =le16_to_cpu (resp->type); + ctxm->type = type; ctxm->entry_size = entry_size; ctxm->flags = flags; ctxm->instance_bmap =le32_to_cpu (resp->instance_bit_map);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 69/311 crypto: algif_aead - Revert to operating out-of-place
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Herbert Xu <[email protected]>
[ Upstream commit a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 ]
This mostly reverts commit 72548b093ee3 except for the copying of the associated data.
There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.
--- crypto/af_alg.c | 49 ++++---------------- crypto/algif_aead.c | 100 ++++++++-------------------------------- crypto/algif_skcipher.c | 6 +-- include/crypto/if_alg.h | 5 +- 4 files changed, 34 insertions(+), 126 deletions(-)
crypto/af_alg.c +10 -39
@@ -637,15 +637,13 @@ static int af_alg_alloc_tsgl(struct sock *sk)/** * af_alg_count_tsgl - Count number of TX SG entries * -* The counting starts from the beginning of the SGL to @bytes. If -* an @offset is provided, the counting of the SG entries starts at the @offset. +* The counting starts from the beginning of the SGL to @bytes. * * @sk: socket of connection to user space * @bytes: Count the number of SG entries holding given number of bytes. -* @offset: Start the counting of SG entries from the given offset. * Return: Number of TX SG entries found given the constraints */ -unsigned int af_alg_count_tsgl (struct sock *sk,size_t bytes,size_t offset) +unsigned int af_alg_count_tsgl (struct sock *sk,size_t bytes) {const struct alg_sock *ask =alg_sk (sk);const struct af_alg_ctx *ctx = ask->private;
@@ -660,25 +658,11 @@ unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset)const struct scatterlist *sg = sgl->sg;for (i =0 ; i < sgl->cur; i++) { -size_t bytes_count; - -/* Skip offset */ -if (offset >= sg[i].length) { - offset -= sg[i].length; - bytes -= sg[i].length; -continue ; - } - - bytes_count = sg[i].length - offset; - - offset =0 ; sgl_count++; - -/* If we have seen requested number of bytes, stop */ -if (bytes_count >= bytes) +if (sg[i].length >= bytes)return sgl_count; - bytes -= bytes_count; + bytes -= sg[i].length; } }
@@ -690,19 +674,14 @@ EXPORT_SYMBOL_GPL(af_alg_count_tsgl);* af_alg_pull_tsgl - Release the specified buffers from TX SGL * * If @dst is non-null, reassign the pages to @dst. The caller must release -* the pages. If @dst_offset is given only reassign the pages to @dst starting -* at the @dst_offset (byte). The caller must ensure that @dst is large -* enough (e.g. by using af_alg_count_tsgl with the same offset). +* the pages. * * @sk: socket of connection to user space * @used: Number of bytes to pull from TX SGL * @dst: If non-NULL, buffer is reassigned to dst SGL instead of releasing. The * caller must release the buffers in dst. -* @dst_offset: Reassign the TX SGL from given offset. All buffers before -* reaching the offset is released. */ -void af_alg_pull_tsgl (struct sock *sk,size_t used,struct scatterlist *dst, -size_t dst_offset) +void af_alg_pull_tsgl (struct sock *sk,size_t used,struct scatterlist *dst) {struct alg_sock *ask =alg_sk (sk);struct af_alg_ctx *ctx = ask->private;
@@ -727,18 +706,10 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst,* SG entries in dst. */ if (dst) { -if (dst_offset >= plen) { -/* discard page before offset */ - dst_offset -= plen; - }else { -/* reassign page to dst after offset */ -get_page (page); -sg_set_page (dst + j, page, - plen - dst_offset, - sg[i].offset + dst_offset); - dst_offset =0 ; - j++; - } +/* reassign page to dst after offset */ +get_page (page); +sg_set_page (dst + j, page, plen, sg[i].offset); + j++; } sg[i].length -= plen;
crypto/algif_aead.c +19 -81
141 lines not on this page · raw message
crypto/algif_skcipher.c +3 -3
@@ -138,7 +138,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg,* Create a per request TX SGL for this request which tracks the * SG entries from the global TX SGL. */ - areq->tsgl_entries =af_alg_count_tsgl (sk, len,0 ); + areq->tsgl_entries =af_alg_count_tsgl (sk, len);if (!areq->tsgl_entries) areq->tsgl_entries =1 ; areq->tsgl = sock_kmalloc(sk, array_size(sizeof(*areq->tsgl),
@@ -149,7 +149,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, goto free; }sg_init_table (areq->tsgl, areq->tsgl_entries); -af_alg_pull_tsgl (sk, len, areq->tsgl,0 ); +af_alg_pull_tsgl (sk, len, areq->tsgl);/* Initialize the crypto operation */ skcipher_request_set_tfm (&areq->cra_u.skcipher_req, tfm);
@@ -363,7 +363,7 @@ static void skcipher_sock_destruct(struct sock *sk)struct alg_sock *pask =alg_sk (psk);struct crypto_skcipher *tfm = pask->private; -af_alg_pull_tsgl (sk, ctx->used,NULL ,0 ); +af_alg_pull_tsgl (sk, ctx->used,NULL );sock_kzfree_s (sk, ctx->iv,crypto_skcipher_ivsize (tfm));if (ctx->state)sock_kzfree_s (sk, ctx->state,crypto_skcipher_statesize (tfm));
include/crypto/if_alg.h +2 -3
@@ -230,9 +230,8 @@ static inline bool af_alg_readable(struct sock *sk)return PAGE_SIZE <=af_alg_rcvbuf (sk); } -unsigned int af_alg_count_tsgl (struct sock *sk,size_t bytes,size_t offset); -void af_alg_pull_tsgl (struct sock *sk,size_t used,struct scatterlist *dst, -size_t dst_offset); +unsigned int af_alg_count_tsgl (struct sock *sk,size_t bytes); +void af_alg_pull_tsgl (struct sock *sk,size_t used,struct scatterlist *dst);void af_alg_wmem_wakeup (struct sock *sk);int af_alg_wait_for_data (struct sock *sk,unsigned flags,unsigned min); int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 70/311 crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Herbert Xu <[email protected]>
[ Upstream commit e02494114ebf7c8b42777c6cd6982f113bfdbec7 ]
When decrypting data that is not in-place (src != dst), there is no need to save the high-order sequence bits in dst as it could simply be re-copied from the source.
However, the data to be hashed need to be rearranged accordingly.
Thanks,
--- crypto/authencesn.c | 48 +++++++++++++++++++++++++++------------------ 1 file changed, 29 insertions(+), 19 deletions(-)
crypto/authencesn.c +29 -19
@@ -207,6 +207,7 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,u8 *ohash = areq_ctx->tail;unsigned int cryptlen = req->cryptlen - authsize;unsigned int assoclen = req->assoclen; +struct scatterlist *src = req->src;struct scatterlist *dst = req->dst;u8 *ihash = ohash +crypto_ahash_digestsize (auth);u32 tmp[2 ];
@@ -214,23 +215,27 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,if (!authsize) goto decrypt; -/* Move high-order bits of sequence number back. */ -scatterwalk_map_and_copy (tmp, dst,4 ,4 ,0 ); -scatterwalk_map_and_copy (tmp +1 , dst, assoclen + cryptlen,4 ,0 ); -scatterwalk_map_and_copy (tmp, dst,0 ,8 ,1 ); +if (src == dst) { +/* Move high-order bits of sequence number back. */ +scatterwalk_map_and_copy (tmp, dst,4 ,4 ,0 ); +scatterwalk_map_and_copy (tmp +1 , dst, assoclen + cryptlen,4 ,0 ); +scatterwalk_map_and_copy (tmp, dst,0 ,8 ,1 ); + }else +memcpy_sglist (dst, src, assoclen);if (crypto_memneq (ihash, ohash, authsize))return -EBADMSG ; decrypt: -sg_init_table (areq_ctx->dst,2 ); +if (src != dst) + src =scatterwalk_ffwd (areq_ctx->src, src, assoclen); dst =scatterwalk_ffwd (areq_ctx->dst, dst, assoclen);skcipher_request_set_tfm (skreq, ctx->enc);skcipher_request_set_callback (skreq, flags, req->base.complete, req->base.data); -skcipher_request_set_crypt (skreq, dst, dst, cryptlen, req->iv); +skcipher_request_set_crypt (skreq, src, dst, cryptlen, req->iv);return crypto_skcipher_decrypt (skreq); }
@@ -255,6 +260,7 @@ static int crypto_authenc_esn_decrypt(struct aead_request *req)unsigned int assoclen = req->assoclen;unsigned int cryptlen = req->cryptlen;u8 *ihash = ohash +crypto_ahash_digestsize (auth); +struct scatterlist *src = req->src;struct scatterlist *dst = req->dst;u32 tmp[2 ];int err;
@@ -262,24 +268,28 @@ static int crypto_authenc_esn_decrypt(struct aead_request *req)if (assoclen <8 )return -EINVAL ; - cryptlen -= authsize; - -if (req->src != dst) -memcpy_sglist (dst, req->src, assoclen + cryptlen); +if (!authsize) + goto tail; + cryptlen -= authsize;scatterwalk_map_and_copy (ihash, req->src, assoclen + cryptlen, authsize,0 ); -if (!authsize) - goto tail; -/* Move high-order bits of sequence number to the end. */ -scatterwalk_map_and_copy (tmp, dst,0 ,8 ,0 ); -scatterwalk_map_and_copy (tmp, dst,4 ,4 ,1 ); -scatterwalk_map_and_copy (tmp +1 , dst, assoclen + cryptlen,4 ,1 ); - -sg_init_table (areq_ctx->dst,2 ); - dst =scatterwalk_ffwd (areq_ctx->dst, dst,4 ); +scatterwalk_map_and_copy (tmp, src,0 ,8 ,0 ); +if (src == dst) { +scatterwalk_map_and_copy (tmp, dst,4 ,4 ,1 ); +scatterwalk_map_and_copy (tmp +1 , dst, assoclen + cryptlen,4 ,1 ); + dst =scatterwalk_ffwd (areq_ctx->dst, dst,4 ); + }else { +scatterwalk_map_and_copy (tmp, dst,0 ,4 ,1 ); +scatterwalk_map_and_copy (tmp +1 , dst, assoclen + cryptlen -4 ,4 ,1 ); + + src =scatterwalk_ffwd (areq_ctx->src, src,8 ); + dst =scatterwalk_ffwd (areq_ctx->dst, dst,4 ); +memcpy_sglist (dst, src, assoclen + cryptlen -8 ); + dst = req->dst; + }ahash_request_set_tfm (ahreq, auth);ahash_request_set_crypt (ahreq, dst, ohash, assoclen + cryptlen);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 71/311 net: bonding: fix use-after-free in bond_xmit_broadcast()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Xiang Mei <[email protected]>
[ Upstream commit 2884bf72fb8f03409e423397319205de48adca16 ]
bond_xmit_broadcast() reuses the original skb for the last slave (determined by bond_is_last_slave()) and clones it for others. Concurrent slave enslave/release can mutate the slave list during RCU-protected iteration, changing which slave is "last" mid-loop. This causes the original skb to be double-consumed (double-freed).
Replace the racy bond_is_last_slave() check with a simple index comparison (i + 1 == slaves_count) against the pre-snapshot slave count taken via READ_ONCE() before the loop. This preserves the zero-copy optimization for the last slave while making the "last" determination stable against concurrent list mutations.
The UAF can trigger the following crash:
==================================================================
BUG: KASAN: slab-use-after-free in skb_clone Read of size 8 at addr ffff888100ef8d40 by task exploit/147 CPU: 1 UID: 0 PID: 147 Comm: exploit Not tainted 7.0.0-rc3+ #4 PREEMPTLAZY Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:123) print_report (mm/kasan/report.c:379 mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:597) skb_clone (include/linux/skbuff.h:1724 include/linux/skbuff.h:1792 include/linux/skbuff.h:3396 net/core/skbuff.c:2108) bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5334) bond_start_xmit (drivers/net/bonding/bond_main.c:5567 drivers/net/bonding/bond_main.c:5593) dev_hard_start_xmit (include/linux/netdevice.h:5325 include/linux/netdevice.h:5334 net/core/dev.c:3871 net/core/dev.c:3887) __dev_queue_xmit (include/linux/netdevice.h:3601 net/core/dev.c:4838) ip6_finish_output2 (include/net/neighbour.h:540 include/net/neighbour.h:554 net/ipv6/ip6_output.c:136) ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219) ip6_output (net/ipv6/ip6_output.c:250) ip6_send_skb (net/ipv6/ip6_output.c:1985) udp_v6_send_skb (net/ipv6/udp.c:1442) udpv6_sendmsg (net/ipv6/udp.c:1733) __sys_sendto (net/socket.c:730 net/socket.c:742 net/socket.c:2206) __x64_sys_sendto (net/socket.c:2209) do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) </TASK> Allocated by task 147: Freed by task 147: The buggy address belongs to the object at ffff888100ef8c80 which belongs to the cache skbuff_head_cache of size 224
The buggy address is located 192 bytes inside of
freed 224-byte region [ffff888100ef8c80, ffff888100ef8d60)
Memory state around the buggy address:
ffff888100ef8c00: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
ffff888100ef8c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888100ef8d00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
^
ffff888100ef8d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
ffff888100ef8e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================--- drivers/net/bonding/bond_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/bonding/bond_main.c +1 -1
@@ -5300,7 +5300,7 @@ static netdev_tx_t bond_xmit_broadcast(struct sk_buff *skb,if (!(bond_slave_is_up (slave) && slave->link ==BOND_LINK_UP ))continue ; -if (bond_is_last_slave (bond, slave)) { +if (i +1 == slaves_count) { skb2 = skb; skb_used = true; }else {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 72/311 NFC: pn533: bound the UART receive buffer
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pengpeng Hou <[email protected]>
[ Upstream commit 30fe3f5f6494f827d812ff179f295a8e532709d6 ]
pn532_receive_buf() appends every incoming byte to dev->recv_skb and only resets the buffer after pn532_uart_rx_is_frame() recognizes a complete frame. A continuous stream of bytes without a valid PN532 frame header therefore keeps growing the skb until skb_put_u8() hits the tail limit.
Drop the accumulated partial frame once the fixed receive buffer is full so malformed UART traffic cannot grow the skb past PN532_UART_SKB_BUFF_LEN.
--- drivers/nfc/pn533/uart.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/nfc/pn533/uart.c +3 -0
@@ -211,6 +211,9 @@ static size_t pn532_receive_buf(struct serdev_device *serdev,timer_delete (&dev->cmd_timeout);for (i =0 ; i < count; i++) { +if (unlikely (!skb_tailroom (dev->recv_skb))) +skb_trim (dev->recv_skb,0 ); +skb_put_u8 (dev->recv_skb, *data++);if (!pn532_uart_rx_is_frame (dev->recv_skb))continue ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 73/311 net: xilinx: axienet: Correct BD length masks to match AXIDMA IP spec
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Suraj Gupta <[email protected]>
[ Upstream commit 393e0b4f178ec7fce1141dacc3304e3607a92ee9 ]
The XAXIDMA_BD_CTRL_LENGTH_MASK and XAXIDMA_BD_STS_ACTUAL_LEN_MASK macros were defined as 0x007FFFFF (23 bits), but the AXI DMA IP product guide (PG021) specifies the buffer length field as bits 25:0 (26 bits). Update both masks to match the IP documentation.
In practice this had no functional impact, since Ethernet frames are far smaller than 2^23 bytes and the extra bits were always zero, but the masks should still reflect the hardware specification.
--- drivers/net/ethernet/xilinx/xilinx_axienet.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/net/ethernet/xilinx/xilinx_axienet.h +2 -2
@@ -105,7 +105,7 @@#define XAXIDMA_BD_HAS_DRE_MASK 0xF00/* Whether has DRE mask */ #define XAXIDMA_BD_WORDLEN_MASK 0xFF/* Whether has DRE mask */ -#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x007FFFFF/* Requested len */ +#define XAXIDMA_BD_CTRL_LENGTH_MASK GENMASK(25, 0)/* Requested len */ #define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000/* First tx packet */ #define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000/* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000/* All control bits */
@@ -130,7 +130,7 @@#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000/* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000/* All control bits */ -#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x007FFFFF/* Actual len */ +#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK GENMASK(25, 0)/* Actual len */ #define XAXIDMA_BD_STS_COMPLETE_MASK 0x80000000/* Completed */ #define XAXIDMA_BD_STS_DEC_ERR_MASK 0x40000000/* Decode error */ #define XAXIDMA_BD_STS_SLV_ERR_MASK 0x20000000/* Slave error */
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 74/311 net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Suraj Gupta <[email protected]>
[ Upstream commit d1978d03e86785872871bff9c2623174b10740de ]
When a TX packet spans multiple buffer descriptors (scatter-gather), axienet_free_tx_chain sums the per-BD actual length from descriptor status into a caller-provided accumulator. That sum is reset on each NAPI poll. If the BDs for a single packet complete across different polls, the earlier bytes are lost and never credited to BQL. This causes BQL to think bytes are permanently in-flight, eventually stalling the TX queue.
The SKB pointer is stored only on the last BD of a packet. When that BD completes, use skb->len for the byte count instead of summing per-BD status lengths. This matches netdev_sent_queue(), which debits skb->len, and naturally survives across polls because no partial packet contributes to the accumulator.
--- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
drivers/net/ethernet/xilinx/xilinx_axienet_main.c +4 -5
@@ -770,8 +770,8 @@ static int axienet_device_reset(struct net_device *ndev)* @first_bd: Index of first descriptor to clean up * @nr_bds: Max number of descriptors to clean up * @force: Whether to clean descriptors even if not complete -* @sizep: Pointer to a u32 filled with the total sum of all bytes -* in all cleaned-up descriptors. Ignored if NULL. +* @sizep: Pointer to a u32 accumulating the total byte count of +* completed packets (using skb->len). Ignored if NULL. * @budget: NAPI budget (use 0 when not called from NAPI poll) * * Would either be called after a successful transmit operation, or after
@@ -805,6 +805,8 @@ static int axienet_free_tx_chain(struct axienet_local *lp, u32 first_bd, DMA_TO_DEVICE);if (cur_p->skb && (status &XAXIDMA_BD_STS_COMPLETE_MASK )) { +if (sizep) + *sizep += cur_p->skb->len;napi_consume_skb (cur_p->skb, budget); packets++; }
@@ -818,9 +820,6 @@ static int axienet_free_tx_chain(struct axienet_local *lp, u32 first_bd,wmb (); cur_p->cntrl =0 ; cur_p->status =0 ; - -if (sizep) - *sizep += status &XAXIDMA_BD_STS_ACTUAL_LEN_MASK ; }if (!force) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 75/311 ASoC: Intel: boards: fix unmet dependency on PINCTRL
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Julian Braha <[email protected]>
[ Upstream commit e920c36f2073d533bdf19ba6ab690432c8173b63 ]
This reverts commit c073f0757663 ("ASoC: Intel: sof_sdw: select PINCTRL_CS42L43 and SPI_CS42L43")
Currently, SND_SOC_INTEL_SOUNDWIRE_SOF_MACH selects PINCTRL_CS42L43 without also selecting or depending on PINCTRL, despite PINCTRL_CS42L43 depending on PINCTRL.
See the following Kbuild warning:
WARNING: unmet direct dependencies detected for PINCTRL_CS42L43
Depends on [n]: PINCTRL [=n] && MFD_CS42L43 [=m]
Selected by [m]:
- SND_SOC_INTEL_SOUNDWIRE_SOF_MACH [=m] && SOUND [=y] && SND [=m] && SND_SOC [=m] && SND_SOC_INTEL_MACH [=y] && (SND_SOC_SOF_INTEL_COMMON [=m] || !SND_SOC_SOF_INTEL_COMMON [=m]) && SND_SOC_SOF_INTEL_SOUNDWIRE [=m] && I2C [=y] && SPI_MASTER [=y] && ACPI [=y] && (MFD_INTEL_LPSS [=n] || COMPILE_TEST [=y]) && (SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES [=n] || COMPILE_TEST [=y]) && SOUNDWIRE [=m]
In response to v1 of this patch [1], Arnd pointed out that there is no compile-time dependency sof_sdw and the PINCTRL_CS42L43 driver. After testing, I can confirm that the kernel compiled with SND_SOC_INTEL_SOUNDWIRE_SOF_MACH enabled and PINCTRL_CS42L43 disabled.
This unmet dependency was detected by kconfirm, a static analysis tool for Kconfig.
--- sound/soc/intel/boards/Kconfig | 2 -- 1 file changed, 2 deletions(-)
sound/soc/intel/boards/Kconfig +0 -2
@@ -525,8 +525,6 @@ config SND_SOC_INTEL_SOUNDWIRE_SOF_MACH select SND_SOC_CS42L43_SDW select MFD_CS42L43 select MFD_CS42L43_SDW - select PINCTRL_CS42L43 - select SPI_CS42L43 select SND_SOC_CS35L56_SPI select SND_SOC_CS35L56_SDW select SND_SOC_DMIC
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 76/311 bridge: mrp: reject zero test interval to avoid OOM panic
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Xiang Mei <[email protected]>
[ Upstream commit fa6e24963342de4370e3a3c9af41e38277b74cf3 ]
br_mrp_start_test() and br_mrp_start_in_test() accept the user-supplied interval value from netlink without validation. When interval is 0, usecs_to_jiffies(0) yields 0, causing the delayed work (br_mrp_test_work_expired / br_mrp_in_test_work_expired) to reschedule itself with zero delay. This creates a tight loop on system_percpu_wq that allocates and transmits MRP test frames at maximum rate, exhausting all system memory and causing a kernel panic via OOM deadlock.
The same zero-interval issue applies to br_mrp_start_in_test_parse() for interconnect test frames.
Use NLA_POLICY_MIN(NLA_U32, 1) in the nla_policy tables for both IFLA_BRIDGE_MRP_START_TEST_INTERVAL and IFLA_BRIDGE_MRP_START_IN_TEST_INTERVAL, so zero is rejected at the netlink attribute parsing layer before the value ever reaches the workqueue scheduling code. This is consistent with how other bridge subsystems (br_fdb, br_mst) enforce range constraints on netlink attributes.
--- net/bridge/br_mrp_netlink.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
net/bridge/br_mrp_netlink.c +2 -2
@@ -196,7 +196,7 @@ static const struct nla_policy br_mrp_start_test_policy[IFLA_BRIDGE_MRP_START_TEST_MAX + 1] = { [IFLA_BRIDGE_MRP_START_TEST_UNSPEC] = { .type = NLA_REJECT }, [IFLA_BRIDGE_MRP_START_TEST_RING_ID] = { .type = NLA_U32 }, - [IFLA_BRIDGE_MRP_START_TEST_INTERVAL] = { .type = NLA_U32 }, + [IFLA_BRIDGE_MRP_START_TEST_INTERVAL] = NLA_POLICY_MIN(NLA_U32, 1), [IFLA_BRIDGE_MRP_START_TEST_MAX_MISS] = { .type = NLA_U32 }, [IFLA_BRIDGE_MRP_START_TEST_PERIOD] = { .type = NLA_U32 }, [IFLA_BRIDGE_MRP_START_TEST_MONITOR] = { .type = NLA_U32 },
@@ -316,7 +316,7 @@ static const struct nla_policy br_mrp_start_in_test_policy[IFLA_BRIDGE_MRP_START_IN_TEST_MAX + 1] = { [IFLA_BRIDGE_MRP_START_IN_TEST_UNSPEC] = { .type = NLA_REJECT }, [IFLA_BRIDGE_MRP_START_IN_TEST_IN_ID] = { .type = NLA_U32 }, - [IFLA_BRIDGE_MRP_START_IN_TEST_INTERVAL] = { .type = NLA_U32 }, + [IFLA_BRIDGE_MRP_START_IN_TEST_INTERVAL] = NLA_POLICY_MIN(NLA_U32, 1), [IFLA_BRIDGE_MRP_START_IN_TEST_MAX_MISS] = { .type = NLA_U32 }, [IFLA_BRIDGE_MRP_START_IN_TEST_PERIOD] = { .type = NLA_U32 }, };
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 77/311 bpf: Fix regsafe() for pointers to packet
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexei Starovoitov <[email protected]>
[ Upstream commit a8502a79e832b861e99218cbd2d8f4312d62e225 ]
In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.
--- kernel/bpf/verifier.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
kernel/bpf/verifier.c +6 -1
@@ -19343,8 +19343,13 @@ static bool regsafe(struct bpf_verifier_env *env, struct bpf_reg_state *rold,* since someone could have accessed through (ptr - k), or * even done ptr -= k in a register, to get a safe access. */ -if (rold->range > rcur->range) +if (rold->range <0 || rcur->range <0 ) { +/* special case for [BEYOND|AT]_PKT_END */ +if (rold->range != rcur->range) +return false; + }else if (rold->range > rcur->range) {return false; + }/* If the offsets don't match, we can't trust our alignment; * nor can we be sure that we won't fall out of range. */
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 78/311 net: ipv6: flowlabel: defer exclusive option free until RCU teardown
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Zhengchuan Liang <[email protected]>
[ Upstream commit 9ca562bb8e66978b53028fa32b1a190708e6a091 ]
ip6fl_seq_show() walks the global flowlabel hash under the seq-file RCU read-side lock and prints fl->opt->opt_nflen when an option block is present.
Exclusive flowlabels currently free fl->opt as soon as fl->users drops to zero in fl_release(). However, the surrounding struct ip6_flowlabel remains visible in the global hash table until later garbage collection removes it and fl_free_rcu() finally tears it down.
A concurrent /proc/net/ip6_flowlabel reader can therefore race that early kfree() and dereference freed option state, triggering a crash in ip6fl_seq_show().
Fix this by keeping fl->opt alive until fl_free_rcu(). That matches the lifetime already required for the enclosing flowlabel while readers can still reach it under RCU.
--- net/ipv6/ip6_flowlabel.c | 5 ----- 1 file changed, 5 deletions(-)
net/ipv6/ip6_flowlabel.c +0 -5
@@ -133,11 +133,6 @@ static void fl_release(struct ip6_flowlabel *fl)if (time_after (ttd, fl->expires)) fl->expires = ttd; ttd = fl->expires; -if (fl->opt && fl->share ==IPV6_FL_S_EXCL ) { -struct ipv6_txoptions *opt = fl->opt; - fl->opt =NULL ; -kfree (opt); - }if (!timer_pending (&ip6_fl_gc_timer) ||time_after (ip6_fl_gc_timer.expires, ttd))mod_timer (&ip6_fl_gc_timer, ttd);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 79/311 mptcp: add eat_recv_skb helper
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geliang Tang <[email protected]>
[ Upstream commit 436510df0cafb1bc36f12e92e0e76599be28d8f4 ]
This patch extracts the free skb related code in __mptcp_recvmsg_mskq() into a new helper mptcp_eat_recv_skb().
This new helper will be used in the next patch.
Stable-dep-of: 5dd8025a49c2 ("mptcp: fix soft lockup in mptcp_recvmsg()")
--- net/mptcp/protocol.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-)
net/mptcp/protocol.c +12 -7
@@ -1989,6 +1989,17 @@ static int mptcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)static void mptcp_rcv_space_adjust (struct mptcp_sock *msk,int copied); +static void mptcp_eat_recv_skb (struct sock *sk,struct sk_buff *skb) +{ +/* avoid the indirect call, we know the destructor is sock_rfree */ + skb->destructor =NULL ; + skb->sk =NULL ; +atomic_sub (skb->truesize, &sk->sk_rmem_alloc); +sk_mem_uncharge (sk, skb->truesize); +__skb_unlink (skb, &sk->sk_receive_queue); +skb_attempt_defer_free (skb); +} + static int __mptcp_recvmsg_mskq(struct sock *sk, struct msghdr *msg, size_t len, int flags, int copied_total, struct scm_timestamping_internal *tss,
@@ -2043,13 +2054,7 @@ static int __mptcp_recvmsg_mskq(struct sock *sk, struct msghdr *msg,break ; } -/* avoid the indirect call, we know the destructor is sock_rfree */ - skb->destructor =NULL ; - skb->sk =NULL ; -atomic_sub (skb->truesize, &sk->sk_rmem_alloc); -sk_mem_uncharge (sk, skb->truesize); -__skb_unlink (skb, &sk->sk_receive_queue); -skb_attempt_defer_free (skb); +mptcp_eat_recv_skb (sk, skb); }if (copied >= len)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 80/311 mptcp: fix soft lockup in mptcp_recvmsg()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Li Xiasong <[email protected]>
[ Upstream commit 5dd8025a49c268ab6b94d978532af3ad341132a7 ]
syzbot reported a soft lockup in mptcp_recvmsg() [0].
When receiving data with MSG_PEEK | MSG_WAITALL flags, the skb is not removed from the sk_receive_queue. This causes sk_wait_data() to always find available data and never perform actual waiting, leading to a soft lockup.
Fix this by adding a 'last' parameter to track the last peeked skb. This allows sk_wait_data() to make informed waiting decisions and prevent infinite loops when MSG_PEEK is used.
[0]:
watchdog: BUG: soft lockup - CPU#2 stuck for 156s! [server:1963] Modules linked in: CPU: 2 UID: 0 PID: 1963 Comm: server Not tainted 6.19.0-rc8 #61 PREEMPT(none) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:sk_wait_data+0x15/0x190 Code: 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 56 41 55 41 54 49 89 f4 55 48 89 d5 53 48 89 fb <48> 83 ec 30 65 48 8b 05 17 a4 6b 01 48 89 44 24 28 31 c0 65 48 8b RSP: 0018:ffffc90000603ca0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888102bf0800 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffc90000603d18 RDI: ffff888102bf0800 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000101 R10: 0000000000000000 R11: 0000000000000075 R12: ffffc90000603d18 R13: ffff888102bf0800 R14: ffff888102bf0800 R15: 0000000000000000 FS: 00007f6e38b8c4c0(0000) GS:ffff8881b877e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055aa7bff1680 CR3: 0000000105cbe000 CR4: 00000000000006f0 Call Trace: <TASK> mptcp_recvmsg+0x547/0x8c0 net/mptcp/protocol.c:2329 inet_recvmsg+0x11f/0x130 net/ipv4/af_inet.c:891 sock_recvmsg+0x94/0xc0 net/socket.c:1100 __sys_recvfrom+0xb2/0x130 net/socket.c:2256 __x64_sys_recvfrom+0x1f/0x30 net/socket.c:2267 do_syscall_64+0x59/0x2d0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e arch/x86/entry/entry_64.S:131 RIP: 0033:0x7f6e386a4a1d Code: 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8d 05 f1 de 2c 00 41 89 ca 8b 00 85 c0 75 20 45 31 c9 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6b f3 c3 66 0f 1f 84 00 00 00 00 00 41 56 41 RSP: 002b:00007ffc3c4bb078 EFLAGS: 00000246 ORIG_RAX: 000000000000002d RAX: ffffffffffffffda RBX: 000000000000861e RCX: 00007f6e386a4a1d RDX: 00000000000003ff RSI: 00007ffc3c4bb150 RDI: 0000000000000004 RBP: 00007ffc3c4bb570 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000103 R11: 0000000000000246 R12: 00005605dbc00be0 R13: 00007ffc3c4bb650 R14: 0000000000000000 R15: 0000000000000000 </TASK>
--- net/mptcp/protocol.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
net/mptcp/protocol.c +8 -3
@@ -2003,7 +2003,7 @@ static void mptcp_eat_recv_skb(struct sock *sk, struct sk_buff *skb)static int __mptcp_recvmsg_mskq (struct sock *sk,struct msghdr *msg,size_t len,int flags,int copied_total,struct scm_timestamping_internal *tss, -int *cmsg_flags) +int *cmsg_flags,struct sk_buff **last) {struct mptcp_sock *msk =mptcp_sk (sk);struct sk_buff *skb, *tmp;
@@ -2020,6 +2020,7 @@ static int __mptcp_recvmsg_mskq(struct sock *sk, struct msghdr *msg,/* skip already peeked skbs */ if (total_data_len + data_len <= copied_total) { total_data_len += data_len; + *last = skb;continue ; }
@@ -2055,6 +2056,8 @@ static int __mptcp_recvmsg_mskq(struct sock *sk, struct msghdr *msg, }mptcp_eat_recv_skb (sk, skb); + }else { + *last = skb; }if (copied >= len)
@@ -2269,10 +2272,12 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, cmsg_flags =MPTCP_CMSG_INQ ;while (copied < len) { +struct sk_buff *last =NULL ;int err, bytes_read; bytes_read =__mptcp_recvmsg_mskq (sk, msg, len - copied, flags, - copied, &tss, &cmsg_flags); + copied, &tss, &cmsg_flags, + &last);if (unlikely (bytes_read <0 )) {if (!copied) copied = bytes_read;
@@ -2324,7 +2329,7 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,pr_debug ("block timeout %ld\n" , timeo);mptcp_cleanup_rbuf (msk, copied); - err =sk_wait_data (sk, &timeo,NULL ); + err =sk_wait_data (sk, &timeo, last);if (err <0 ) { err = copied ? : err; goto out_err;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 81/311 net: stmmac: skip VLAN restore when VLAN hash ops are missing
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michal Piekos <[email protected]>
[ Upstream commit 48b3cd69265f346f64b93064723492da46206e9b ]
stmmac_vlan_restore() unconditionally calls stmmac_vlan_update() when NETIF_F_VLAN_FEATURES is set. On platforms where priv->hw->vlan (or ->update_vlan_hash) is not provided, stmmac_update_vlan_hash() returns -EINVAL via stmmac_do_void_callback(), resulting in a spurious "Failed to restore VLANs" error even when no VLAN filtering is in use.
Remove not needed comment.
Remove not used return value from stmmac_vlan_restore().
Tested on Orange Pi Zero 3.
--- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-)
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +4 -10
@@ -140,7 +140,7 @@ static void stmmac_tx_timer_arm(struct stmmac_priv *priv, u32 queue);static void stmmac_flush_tx_descriptors (struct stmmac_priv *priv,int queue);static void stmmac_set_dma_operation_mode (struct stmmac_priv *priv,u32 txmode,u32 rxmode,u32 chan); -static int stmmac_vlan_restore (struct stmmac_priv *priv); +static void stmmac_vlan_restore (struct stmmac_priv *priv);#ifdef CONFIG_DEBUG_FS static const struct net_device_ops stmmac_netdev_ops;
@@ -6811,21 +6811,15 @@ static int stmmac_vlan_rx_kill_vid(struct net_device *ndev, __be16 proto, u16 vireturn ret; } -static int stmmac_vlan_restore (struct stmmac_priv *priv) +static void stmmac_vlan_restore (struct stmmac_priv *priv) { -int ret; -if (!(priv->dev->features &NETIF_F_VLAN_FEATURES )) -return 0 ; +return ;if (priv->hw->num_vlan)stmmac_restore_hw_vlan_rx_fltr (priv, priv->dev, priv->hw); - ret =stmmac_vlan_update (priv, priv->num_double_vlans); -if (ret) -netdev_err (priv->dev,"Failed to restore VLANs\n" ); - -return ret; +stmmac_vlan_update (priv, priv->num_double_vlans); }static int stmmac_bpf (struct net_device *dev,struct netdev_bpf *bpf)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 82/311 ALSA: usb-audio: Exclude Scarlett 2i2 1st Gen (8016) from SKIP_IFACE_SETUP
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geoffrey D. Bennett <[email protected]>
[ Upstream commit a0dafdbd1049a8ea661a1a471be1b840bd8aed13 ]
Same issue as the other 1st Gen Scarletts: QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted audio on this revision of the Scarlett 2i2 1st Gen (1235:8016).
--- sound/usb/quirks.c | 1 + 1 file changed, 1 insertion(+)
sound/usb/quirks.c +1 -0
@@ -2427,6 +2427,7 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_VALIDATE_RATES),DEVICE_FLG (0x1235 ,0x8006 ,0 ),/* Focusrite Scarlett 2i2 1st Gen */ DEVICE_FLG (0x1235 ,0x800a ,0 ),/* Focusrite Scarlett 2i4 1st Gen */ +DEVICE_FLG (0x1235 ,0x8016 ,0 ),/* Focusrite Scarlett 2i2 1st Gen */ DEVICE_FLG (0x1235 ,0x801c ,0 ),/* Focusrite Scarlett Solo 1st Gen */ VENDOR_FLG (0x1235 ,/* Focusrite Novation */ QUIRK_FLAG_SKIP_IFACE_SETUP),
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 83/311 netfilter: flowtable: strictly check for maximum number of actions
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit 76522fcdbc3a02b568f5d957f7e66fc194abb893 ]
The maximum number of flowtable hardware offload actions in IPv6 is:
* ethernet mangling (4 payload actions, 2 for each ethernet address)
* SNAT (4 payload actions)
* DNAT (4 payload actions)
* Double VLAN (4 vlan actions, 2 for popping vlan, and 2 for pushing) for QinQ.
* Redirect (1 action)
Which makes 17, while the maximum is 16. But act_ct supports for tunnels actions too. Note that payload action operates at 32-bit word level, so mangling an IPv6 address takes 4 payload actions.
Update flow_action_entry_next() calls to check for the maximum number of supported actions.
While at it, rise the maximum number of actions per flow from 16 to 24 so this works fine with IPv6 setups.
--- net/netfilter/nf_flow_table_offload.c | 196 +++++++++++++++++--------- 1 file changed, 130 insertions(+), 66 deletions(-)
net/netfilter/nf_flow_table_offload.c +130 -66
@@ -13,6 +13,8 @@#include <net/netfilter/nf_conntrack_core.h> #include <net/netfilter/nf_conntrack_tuple.h> +#define NF_FLOW_RULE_ACTION_MAX 24 +static struct workqueue_struct *nf_flow_offload_add_wq;static struct workqueue_struct *nf_flow_offload_del_wq;static struct workqueue_struct *nf_flow_offload_stats_wq;
@@ -215,7 +217,12 @@ static void flow_offload_mangle(struct flow_action_entry *entry,static inline struct flow_action_entry *flow_action_entry_next (struct nf_flow_rule *flow_rule) { -int i = flow_rule->rule->action.num_entries++; +int i; + +if (unlikely (flow_rule->rule->action.num_entries >=NF_FLOW_RULE_ACTION_MAX )) +return NULL ; + + i = flow_rule->rule->action.num_entries++;return &flow_rule->rule->action.entries[i]; }
@@ -233,6 +240,9 @@ static int flow_offload_eth_src(struct net *net,u32 mask, val;u16 val16; +if (!entry0 || !entry1) +return -E2BIG ; + this_tuple = &flow->tuplehash[dir].tuple;switch (this_tuple->xmit_type) {
@@ -283,6 +293,9 @@ static int flow_offload_eth_dst(struct net *net,u8 nud_state;u16 val16; +if (!entry0 || !entry1) +return -E2BIG ; + this_tuple = &flow->tuplehash[dir].tuple;switch (this_tuple->xmit_type) {
@@ -324,16 +337,19 @@ static int flow_offload_eth_dst(struct net *net,return 0 ; } -static void flow_offload_ipv4_snat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_ipv4_snat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {struct flow_action_entry *entry =flow_action_entry_next (flow_rule);u32 mask = ~htonl (0xffffffff );__be32 addr;u32 offset; +if (!entry) +return -E2BIG ; +switch (dir) {case FLOW_OFFLOAD_DIR_ORIGINAL : addr = flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY ].tuple.dst_v4.s_addr;
@@ -344,23 +360,27 @@ static void flow_offload_ipv4_snat(struct net *net, offset = offsetof(struct iphdr , daddr);break ;default : -return ; +return -EOPNOTSUPP ; }flow_offload_mangle (entry,FLOW_ACT_MANGLE_HDR_TYPE_IP4 , offset, &addr, &mask); +return 0 ; } -static void flow_offload_ipv4_dnat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_ipv4_dnat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {struct flow_action_entry *entry =flow_action_entry_next (flow_rule);u32 mask = ~htonl (0xffffffff );__be32 addr;u32 offset; +if (!entry) +return -E2BIG ; +switch (dir) {case FLOW_OFFLOAD_DIR_ORIGINAL : addr = flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY ].tuple.src_v4.s_addr;
@@ -371,14 +391,15 @@ static void flow_offload_ipv4_dnat(struct net *net, offset = offsetof(struct iphdr , saddr);break ;default : -return ; +return -EOPNOTSUPP ; }flow_offload_mangle (entry,FLOW_ACT_MANGLE_HDR_TYPE_IP4 , offset, &addr, &mask); +return 0 ; } -static void flow_offload_ipv6_mangle (struct nf_flow_rule *flow_rule, +static int flow_offload_ipv6_mangle (struct nf_flow_rule *flow_rule,unsigned int offset,const __be32 *addr,const __be32 *mask) {
@@ -387,15 +408,20 @@ static void flow_offload_ipv6_mangle(struct nf_flow_rule *flow_rule,for (i =0 ; i <sizeof (struct in6_addr ) /sizeof (u32); i++) { entry =flow_action_entry_next (flow_rule); +if (!entry) +return -E2BIG ; +flow_offload_mangle (entry,FLOW_ACT_MANGLE_HDR_TYPE_IP6 , offset + i *sizeof (u32), &addr[i], mask); } + +return 0 ; } -static void flow_offload_ipv6_snat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_ipv6_snat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {u32 mask = ~htonl (0xffffffff );const __be32 *addr;
@@ -411,16 +437,16 @@ static void flow_offload_ipv6_snat(struct net *net, offset = offsetof(struct ipv6hdr , daddr);break ;default : -return ; +return -EOPNOTSUPP ; } -flow_offload_ipv6_mangle (flow_rule, offset, addr, &mask); +return flow_offload_ipv6_mangle (flow_rule, offset, addr, &mask); } -static void flow_offload_ipv6_dnat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_ipv6_dnat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {u32 mask = ~htonl (0xffffffff );const __be32 *addr;
@@ -436,10 +462,10 @@ static void flow_offload_ipv6_dnat(struct net *net, offset = offsetof(struct ipv6hdr , saddr);break ;default : -return ; +return -EOPNOTSUPP ; } -flow_offload_ipv6_mangle (flow_rule, offset, addr, &mask); +return flow_offload_ipv6_mangle (flow_rule, offset, addr, &mask); }static int flow_offload_l4proto (const struct flow_offload *flow)
@@ -461,15 +487,18 @@ static int flow_offload_l4proto(const struct flow_offload *flow)return type; } -static void flow_offload_port_snat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_port_snat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {struct flow_action_entry *entry =flow_action_entry_next (flow_rule);u32 mask, port;u32 offset; +if (!entry) +return -E2BIG ; +switch (dir) {case FLOW_OFFLOAD_DIR_ORIGINAL : port =ntohs (flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY ].tuple.dst_port);
@@ -484,22 +513,26 @@ static void flow_offload_port_snat(struct net *net, mask = ~htonl (0xffff );break ;default : -return ; +return -EOPNOTSUPP ; }flow_offload_mangle (entry,flow_offload_l4proto (flow), offset, &port, &mask); +return 0 ; } -static void flow_offload_port_dnat (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_port_dnat (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {struct flow_action_entry *entry =flow_action_entry_next (flow_rule);u32 mask, port;u32 offset; +if (!entry) +return -E2BIG ; +switch (dir) {case FLOW_OFFLOAD_DIR_ORIGINAL : port =ntohs (flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY ].tuple.src_port);
@@ -514,20 +547,24 @@ static void flow_offload_port_dnat(struct net *net, mask = ~htonl (0xffff0000 );break ;default : -return ; +return -EOPNOTSUPP ; }flow_offload_mangle (entry,flow_offload_l4proto (flow), offset, &port, &mask); +return 0 ; } -static void flow_offload_ipv4_checksum (struct net *net, -const struct flow_offload *flow, -struct nf_flow_rule *flow_rule) +static int flow_offload_ipv4_checksum (struct net *net, +const struct flow_offload *flow, +struct nf_flow_rule *flow_rule) {u8 protonum = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL ].tuple.l4proto;struct flow_action_entry *entry =flow_action_entry_next (flow_rule); +if (!entry) +return -E2BIG ; + entry->id =FLOW_ACTION_CSUM ; entry->csum_flags =TCA_CSUM_UPDATE_FLAG_IPV4HDR ;
@@ -539,12 +576,14 @@ static void flow_offload_ipv4_checksum(struct net *net, entry->csum_flags |=TCA_CSUM_UPDATE_FLAG_UDP ;break ; } + +return 0 ; } -static void flow_offload_redirect (struct net *net, -const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_redirect (struct net *net, +const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {const struct flow_offload_tuple *this_tuple, *other_tuple;struct flow_action_entry *entry;
@@ -562,21 +601,28 @@ static void flow_offload_redirect(struct net *net, ifindex = other_tuple->iifidx;break ;default : -return ; +return -EOPNOTSUPP ; } dev =dev_get_by_index (net, ifindex);if (!dev) -return ; +return -ENODEV ; entry =flow_action_entry_next (flow_rule); +if (!entry) { +dev_put (dev); +return -E2BIG ; + } + entry->id =FLOW_ACTION_REDIRECT ; entry->dev = dev; + +return 0 ; } -static void flow_offload_encap_tunnel (const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_encap_tunnel (const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {const struct flow_offload_tuple *this_tuple;struct flow_action_entry *entry;
@@ -584,7 +630,7 @@ static void flow_offload_encap_tunnel(const struct flow_offload *flow, this_tuple = &flow->tuplehash[dir].tuple;if (this_tuple->xmit_type ==FLOW_OFFLOAD_XMIT_DIRECT ) -return ; +return 0 ; dst = this_tuple->dst_cache;if (dst && dst->lwtstate) {
@@ -593,15 +639,19 @@ static void flow_offload_encap_tunnel(const struct flow_offload *flow, tun_info =lwt_tun_info (dst->lwtstate);if (tun_info && (tun_info->mode &IP_TUNNEL_INFO_TX )) { entry =flow_action_entry_next (flow_rule); +if (!entry) +return -E2BIG ; entry->id =FLOW_ACTION_TUNNEL_ENCAP ; entry->tunnel = tun_info; } } + +return 0 ; } -static void flow_offload_decap_tunnel (const struct flow_offload *flow, -enum flow_offload_tuple_dir dir, -struct nf_flow_rule *flow_rule) +static int flow_offload_decap_tunnel (const struct flow_offload *flow, +enum flow_offload_tuple_dir dir, +struct nf_flow_rule *flow_rule) {const struct flow_offload_tuple *other_tuple;struct flow_action_entry *entry;
@@ -609,7 +659,7 @@ static void flow_offload_decap_tunnel(const struct flow_offload *flow, other_tuple = &flow->tuplehash[!dir].tuple;if (other_tuple->xmit_type ==FLOW_OFFLOAD_XMIT_DIRECT ) -return ; +return 0 ; dst = other_tuple->dst_cache;if (dst && dst->lwtstate) {
@@ -618,9 +668,13 @@ static void flow_offload_decap_tunnel(const struct flow_offload *flow, tun_info =lwt_tun_info (dst->lwtstate);if (tun_info && (tun_info->mode &IP_TUNNEL_INFO_TX )) { entry =flow_action_entry_next (flow_rule); +if (!entry) +return -E2BIG ; entry->id =FLOW_ACTION_TUNNEL_DECAP ; } } + +return 0 ; } static int
@@ -632,8 +686,9 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,const struct flow_offload_tuple *tuple;int i; -flow_offload_decap_tunnel (flow, dir, flow_rule); -flow_offload_encap_tunnel (flow, dir, flow_rule); +if (flow_offload_decap_tunnel (flow, dir, flow_rule) <0 || +flow_offload_encap_tunnel (flow, dir, flow_rule) <0 ) +return -1 ;if (flow_offload_eth_src (net, flow, dir, flow_rule) <0 ||flow_offload_eth_dst (net, flow, dir, flow_rule) <0 )
@@ -649,6 +704,8 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,if (tuple->encap[i].proto ==htons (ETH_P_8021Q )) { entry =flow_action_entry_next (flow_rule); +if (!entry) +return -1 ; entry->id =FLOW_ACTION_VLAN_POP ; } }
@@ -662,6 +719,8 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,continue ; entry =flow_action_entry_next (flow_rule); +if (!entry) +return -1 ;switch (other_tuple->encap[i].proto) {case htons (ETH_P_PPP_SES ):
@@ -687,18 +746,22 @@ int nf_flow_rule_route_ipv4(struct net *net, struct flow_offload *flow,return -1 ;if (test_bit (NF_FLOW_SNAT , &flow->flags)) { -flow_offload_ipv4_snat (net, flow, dir, flow_rule); -flow_offload_port_snat (net, flow, dir, flow_rule); +if (flow_offload_ipv4_snat (net, flow, dir, flow_rule) <0 || +flow_offload_port_snat (net, flow, dir, flow_rule) <0 ) +return -1 ; }if (test_bit (NF_FLOW_DNAT , &flow->flags)) { -flow_offload_ipv4_dnat (net, flow, dir, flow_rule); -flow_offload_port_dnat (net, flow, dir, flow_rule); +if (flow_offload_ipv4_dnat (net, flow, dir, flow_rule) <0 || +flow_offload_port_dnat (net, flow, dir, flow_rule) <0 ) +return -1 ; }if (test_bit (NF_FLOW_SNAT , &flow->flags) ||test_bit (NF_FLOW_DNAT , &flow->flags)) -flow_offload_ipv4_checksum (net, flow, flow_rule); +if (flow_offload_ipv4_checksum (net, flow, flow_rule) <0 ) +return -1 ; -flow_offload_redirect (net, flow, dir, flow_rule); +if (flow_offload_redirect (net, flow, dir, flow_rule) <0 ) +return -1 ;return 0 ; }
@@ -712,22 +775,23 @@ int nf_flow_rule_route_ipv6(struct net *net, struct flow_offload *flow,return -1 ;if (test_bit (NF_FLOW_SNAT , &flow->flags)) { -flow_offload_ipv6_snat (net, flow, dir, flow_rule); -flow_offload_port_snat (net, flow, dir, flow_rule); +if (flow_offload_ipv6_snat (net, flow, dir, flow_rule) <0 || +flow_offload_port_snat (net, flow, dir, flow_rule) <0 ) +return -1 ; }if (test_bit (NF_FLOW_DNAT , &flow->flags)) { -flow_offload_ipv6_dnat (net, flow, dir, flow_rule); -flow_offload_port_dnat (net, flow, dir, flow_rule); +if (flow_offload_ipv6_dnat (net, flow, dir, flow_rule) <0 || +flow_offload_port_dnat (net, flow, dir, flow_rule) <0 ) +return -1 ; } -flow_offload_redirect (net, flow, dir, flow_rule); +if (flow_offload_redirect (net, flow, dir, flow_rule) <0 ) +return -1 ;return 0 ; }EXPORT_SYMBOL_GPL (nf_flow_rule_route_ipv6); -#define NF_FLOW_RULE_ACTION_MAX 16 -static struct nf_flow_rule * nf_flow_offload_rule_alloc(struct net *net, const struct flow_offload_work *offload,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 84/311 netfilter: nfnetlink_log: account for netlink header size
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Westphal <[email protected]>
[ Upstream commit 6d52a4a0520a6696bdde51caa11f2d6821cd0c01 ]
This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size.
This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects.
--- net/netfilter/nfnetlink_log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/netfilter/nfnetlink_log.c +1 -1
@@ -726,7 +726,7 @@ nfulnl_log_packet(struct net *net, +nla_total_size (plen)/* prefix */ +nla_total_size (sizeof (struct nfulnl_msg_packet_hw )) +nla_total_size (sizeof (struct nfulnl_msg_packet_timestamp )) - +nla_total_size (sizeof (struct nfgenmsg ));/* NLMSG_DONE */ + +nlmsg_total_size (sizeof (struct nfgenmsg ));/* NLMSG_DONE */ if (in &&skb_mac_header_was_set (skb)) { size +=nla_total_size (skb->dev->hard_header_len)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 85/311 netfilter: x_tables: ensure names are nul-terminated
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Westphal <[email protected]>
[ Upstream commit a958a4f90ddd7de0800b33ca9d7b886b7d40f74e ]
Reject names that lack a \0 character before feeding them to functions that expect c-strings.
Fixes tag is the most recent commit that needs this change.
--- net/netfilter/xt_cgroup.c | 6 ++++++ net/netfilter/xt_rateest.c | 5 +++++ 2 files changed, 11 insertions(+)
net/netfilter/xt_cgroup.c +6 -0
@@ -65,6 +65,9 @@ static int cgroup_mt_check_v1(const struct xt_mtchk_param *par) info->priv =NULL ;if (info->has_path) { +if (strnlen (info->path,sizeof (info->path)) >=sizeof (info->path)) +return -ENAMETOOLONG ; + cgrp =cgroup_get_from_path (info->path);if (IS_ERR (cgrp)) { pr_info_ratelimited("invalid path, errno=%ld\n",
@@ -102,6 +105,9 @@ static int cgroup_mt_check_v2(const struct xt_mtchk_param *par) info->priv =NULL ;if (info->has_path) { +if (strnlen (info->path,sizeof (info->path)) >=sizeof (info->path)) +return -ENAMETOOLONG ; + cgrp =cgroup_get_from_path (info->path);if (IS_ERR (cgrp)) { pr_info_ratelimited("invalid path, errno=%ld\n",
net/netfilter/xt_rateest.c +5 -0
@@ -91,6 +91,11 @@ static int xt_rateest_mt_checkentry(const struct xt_mtchk_param *par) goto err1; } +if (strnlen (info->name1,sizeof (info->name1)) >=sizeof (info->name1)) +return -ENAMETOOLONG ; +if (strnlen (info->name2,sizeof (info->name2)) >=sizeof (info->name2)) +return -ENAMETOOLONG ; + ret = -ENOENT ; est1 =xt_rateest_lookup (par->net, info->name1);if (!est1)
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 86/311 netfilter: ipset: use nla_strcmp for IPSET_ATTR_NAME attr
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Westphal <[email protected]>
[ Upstream commit b7e8590987aa94c9dc51518fad0e58cb887b1db5 ]
IPSET_ATTR_NAME and IPSET_ATTR_NAMEREF are of NLA_STRING type, they cannot be treated like a c-string.
They either have to be switched to NLA_NUL_STRING, or the compare operations need to use the nla functions.
--- include/linux/netfilter/ipset/ip_set.h | 2 +- net/netfilter/ipset/ip_set_core.c | 4 ++-- net/netfilter/ipset/ip_set_list_set.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-)
include/linux/netfilter/ipset/ip_set.h +1 -1
@@ -309,7 +309,7 @@ enum {/* register and unregister set references */ extern ip_set_id_t ip_set_get_byname (struct net *net, -const char *name,struct ip_set **set); +const struct nlattr *name,struct ip_set **set);extern void ip_set_put_byindex (struct net *net,ip_set_id_t index);extern void ip_set_name_byindex (struct net *net,ip_set_id_t index,char *name);extern ip_set_id_t ip_set_nfnl_get_byindex (struct net *net,ip_set_id_t index);
net/netfilter/ipset/ip_set_core.c +2 -2
@@ -821,7 +821,7 @@ EXPORT_SYMBOL_GPL(ip_set_del);* */ ip_set_id_t -ip_set_get_byname (struct net *net,const char *name,struct ip_set **set) +ip_set_get_byname (struct net *net,const struct nlattr *name,struct ip_set **set) {ip_set_id_t i, index =IPSET_INVALID_ID ;struct ip_set *s;
@@ -830,7 +830,7 @@ ip_set_get_byname(struct net *net, const char *name, struct ip_set **set)rcu_read_lock ();for (i =0 ; i < inst->ip_set_max; i++) { s =rcu_dereference (inst->ip_set_list)[i]; -if (s &&STRNCMP (s->name, name)) { +if (s &&nla_strcmp (name, s->name) ==0 ) {__ip_set_get (s); index = i; *set = s;
net/netfilter/ipset/ip_set_list_set.c +2 -2
@@ -367,7 +367,7 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[], ret =ip_set_get_extensions (set, tb, &ext);if (ret)return ret; - e.id =ip_set_get_byname (map->net,nla_data (tb[IPSET_ATTR_NAME ]), &s); + e.id =ip_set_get_byname (map->net, tb[IPSET_ATTR_NAME ], &s);if (e.id ==IPSET_INVALID_ID )return -IPSET_ERR_NAME ;/* "Loop detection" */
@@ -389,7 +389,7 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],if (tb[IPSET_ATTR_NAMEREF ]) { e.refid =ip_set_get_byname (map->net, -nla_data (tb[IPSET_ATTR_NAMEREF ]), + tb[IPSET_ATTR_NAMEREF ], &s);if (e.refid ==IPSET_INVALID_ID ) { ret = -IPSET_ERR_NAMEREF ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 87/311 netfilter: nf_conntrack_helper: pass helper to expect cleanup
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Qi Tang <[email protected]>
[ Upstream commit a242a9ae58aa46ff7dae51ce64150a93957abe65 ]
nf_conntrack_helper_unregister() calls nf_ct_expect_iterate_destroy() to remove expectations belonging to the helper being unregistered. However, it passes NULL instead of the helper pointer as the data argument, so expect_iter_me() never matches any expectation and all of them survive the cleanup.
After unregister returns, nfnl_cthelper_del() frees the helper object immediately. Subsequent expectation dumps or packet-driven init_conntrack() calls then dereference the freed exp->helper, causing a use-after-free.
Pass the actual helper pointer so expectations referencing it are properly destroyed before the helper object is freed.
BUG: KASAN: slab-use-after-free in string+0x38f/0x430 Read of size 1 at addr ffff888003b14d20 by task poc/103 Call Trace: string+0x38f/0x430 vsnprintf+0x3cc/0x1170 seq_printf+0x17a/0x240 exp_seq_show+0x2e5/0x560 seq_read_iter+0x419/0x1280 proc_reg_read+0x1ac/0x270 vfs_read+0x179/0x930 ksys_read+0xef/0x1c0 Freed by task 103: The buggy address is located 32 bytes inside of freed 192-byte region [ffff888003b14d00, ffff888003b14dc0)
--- net/netfilter/nf_conntrack_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/netfilter/nf_conntrack_helper.c +1 -1
@@ -419,7 +419,7 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)*/ synchronize_rcu (); -nf_ct_expect_iterate_destroy (expect_iter_me,NULL ); +nf_ct_expect_iterate_destroy (expect_iter_me, me);nf_ct_iterate_destroy (unhelp, me); }EXPORT_SYMBOL_GPL (nf_conntrack_helper_unregister);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 88/311 netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Qi Tang <[email protected]>
[ Upstream commit 35177c6877134a21315f37d57a5577846225623e ]
ctnetlink_alloc_expect() allocates expectations from a non-zeroing slab cache via nf_ct_expect_alloc(). When CTA_EXPECT_NAT is not present in the netlink message, saved_addr and saved_proto are never initialized. Stale data from a previous slab occupant can then be dumped to userspace by ctnetlink_exp_dump_expect(), which checks these fields to decide whether to emit CTA_EXPECT_NAT.
The safe sibling nf_ct_expect_init(), used by the packet path, explicitly zeroes these fields.
Zero saved_addr, saved_proto and dir in the else branch, guarded by IS_ENABLED(CONFIG_NF_NAT) since these fields only exist when NAT is enabled.
Confirmed by priming the expect slab with NAT-bearing expectations, freeing them, creating a new expectation without CTA_EXPECT_NAT, and observing that the ctnetlink dump emits a spurious CTA_EXPECT_NAT containing stale data from the prior allocation.
--- net/netfilter/nf_conntrack_netlink.c | 6 ++++++ 1 file changed, 6 insertions(+)
net/netfilter/nf_conntrack_netlink.c +6 -0
@@ -3576,6 +3576,12 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct, exp, nf_ct_l3num(ct));if (err <0 ) goto err_out; +#if IS_ENABLED (CONFIG_NF_NAT ) + } else { +memset (&exp->saved_addr,0 ,sizeof (exp->saved_addr)); +memset (&exp->saved_proto,0 ,sizeof (exp->saved_proto)); + exp->dir =0 ; +#endif }return exp; err_out:
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 89/311 netfilter: nf_conntrack_expect: honor expectation helper field
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit 9c42bc9db90a154bc61ae337a070465f3393485a ]
The expectation helper field is mostly unused. As a result, the netfilter codebase relies on accessing the helper through exp->master.
Always set on the expectation helper field so it can be used to reach the helper.
nf_ct_expect_init() is called from packet path where the skb owns the ct object, therefore accessing exp->master for the newly created expectation is safe. This saves a lot of updates in all callsites to pass the ct object as parameter to nf_ct_expect_init().
This is a preparation patches for follow up fixes.
Stable-dep-of: 917b61fa2042 ("netfilter: ctnetlink: ignore explicit helper on new expectations")
--- include/net/netfilter/nf_conntrack_expect.h | 2 +- net/netfilter/nf_conntrack_broadcast.c | 2 +- net/netfilter/nf_conntrack_expect.c | 14 +++++++++++++- net/netfilter/nf_conntrack_h323_main.c | 12 ++++++------ net/netfilter/nf_conntrack_helper.c | 7 ++++++- net/netfilter/nf_conntrack_netlink.c | 2 +- net/netfilter/nf_conntrack_sip.c | 2 +- 7 files changed, 29 insertions(+), 12 deletions(-)
include/net/netfilter/nf_conntrack_expect.h +1 -1
@@ -40,7 +40,7 @@ struct nf_conntrack_expect { struct nf_conntrack_expect *this);/* Helper to assign to new connection */ -struct nf_conntrack_helper *helper; +struct nf_conntrack_helper __rcu *helper;/* The conntrack of the master connection */ struct nf_conn *master;
net/netfilter/nf_conntrack_broadcast.c +1 -1
@@ -70,7 +70,7 @@ int nf_conntrack_broadcast_help(struct sk_buff *skb, exp->expectfn =NULL ; exp->flags =NF_CT_EXPECT_PERMANENT ; exp->class =NF_CT_EXPECT_CLASS_DEFAULT ; - exp->helper =NULL ; +rcu_assign_pointer (exp->helper, helper);nf_ct_expect_related (exp,0 );nf_ct_expect_put (exp);
net/netfilter/nf_conntrack_expect.c +13 -1
@@ -309,12 +309,19 @@ struct nf_conntrack_expect *nf_ct_expect_alloc(struct nf_conn *me) }EXPORT_SYMBOL_GPL (nf_ct_expect_alloc); +/* This function can only be used from packet path, where accessing +* master's helper is safe, because the packet holds a reference on +* the conntrack object. Never use it from control plane. +*/ void nf_ct_expect_init (struct nf_conntrack_expect *exp,unsigned int class,u_int8_t family,const union nf_inet_addr *saddr,const union nf_inet_addr *daddr,u_int8_t proto,const __be16 *src,const __be16 *dst) { +struct nf_conntrack_helper *helper =NULL ; +struct nf_conn *ct = exp->master; +struct nf_conn_help *help;int len;if (family ==AF_INET )
@@ -325,7 +332,12 @@ void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class, exp->flags =0 ; exp->class = class; exp->expectfn =NULL ; - exp->helper =NULL ; + + help =nfct_help (ct); +if (help) + helper =rcu_dereference (help->helper); + +rcu_assign_pointer (exp->helper, helper); exp->tuple.src.l3num = family; exp->tuple.dst.protonum = proto;
net/netfilter/nf_conntrack_h323_main.c +6 -6
@@ -642,7 +642,7 @@ static int expect_h245(struct sk_buff *skb, struct nf_conn *ct, &ct->tuplehash[!dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3, IPPROTO_TCP, NULL, &port); - exp->helper = &nf_conntrack_helper_h245; +rcu_assign_pointer (exp->helper, &nf_conntrack_helper_h245); nathook =rcu_dereference (nfct_h323_nat_hook); if (memcmp(&ct->tuplehash[dir].tuple.src.u3,
@@ -766,7 +766,7 @@ static int expect_callforwarding(struct sk_buff *skb,nf_ct_expect_init (exp,NF_CT_EXPECT_CLASS_DEFAULT ,nf_ct_l3num (ct), &ct->tuplehash[!dir].tuple.src.u3, &addr,IPPROTO_TCP ,NULL , &port); - exp->helper = nf_conntrack_helper_q931; +rcu_assign_pointer (exp->helper, nf_conntrack_helper_q931); nathook =rcu_dereference (nfct_h323_nat_hook); if (memcmp(&ct->tuplehash[dir].tuple.src.u3,
@@ -1233,7 +1233,7 @@ static int expect_q931(struct sk_buff *skb, struct nf_conn *ct, &ct->tuplehash[!dir].tuple.src.u3 : NULL, &ct->tuplehash[!dir].tuple.dst.u3, IPPROTO_TCP, NULL, &port); - exp->helper = nf_conntrack_helper_q931; +rcu_assign_pointer (exp->helper, nf_conntrack_helper_q931); exp->flags =NF_CT_EXPECT_PERMANENT ;/* Accept multiple calls */ nathook =rcu_dereference (nfct_h323_nat_hook);
@@ -1305,7 +1305,7 @@ static int process_gcf(struct sk_buff *skb, struct nf_conn *ct,nf_ct_expect_init (exp,NF_CT_EXPECT_CLASS_DEFAULT ,nf_ct_l3num (ct), &ct->tuplehash[!dir].tuple.src.u3, &addr,IPPROTO_UDP ,NULL , &port); - exp->helper = nf_conntrack_helper_ras; +rcu_assign_pointer (exp->helper, nf_conntrack_helper_ras);if (nf_ct_expect_related (exp,0 ) ==0 ) {pr_debug ("nf_ct_ras: expect RAS " );
@@ -1522,7 +1522,7 @@ static int process_acf(struct sk_buff *skb, struct nf_conn *ct, &ct->tuplehash[!dir].tuple.src.u3, &addr, IPPROTO_TCP, NULL, &port); exp->flags =NF_CT_EXPECT_PERMANENT ; - exp->helper = nf_conntrack_helper_q931; +rcu_assign_pointer (exp->helper, nf_conntrack_helper_q931);if (nf_ct_expect_related (exp,0 ) ==0 ) {pr_debug ("nf_ct_ras: expect Q.931 " );
@@ -1576,7 +1576,7 @@ static int process_lcf(struct sk_buff *skb, struct nf_conn *ct, &ct->tuplehash[!dir].tuple.src.u3, &addr, IPPROTO_TCP, NULL, &port); exp->flags =NF_CT_EXPECT_PERMANENT ; - exp->helper = nf_conntrack_helper_q931; +rcu_assign_pointer (exp->helper, nf_conntrack_helper_q931);if (nf_ct_expect_related (exp,0 ) ==0 ) {pr_debug ("nf_ct_ras: expect Q.931 " );
net/netfilter/nf_conntrack_helper.c +6 -1
@@ -399,7 +399,7 @@ static bool expect_iter_me(struct nf_conntrack_expect *exp, void *data)const struct nf_conntrack_helper *me = data;const struct nf_conntrack_helper *this; -if (exp->helper == me) +if (rcu_access_pointer (exp->helper) == me)return true; this = rcu_dereference_protected(help->helper,
@@ -421,6 +421,11 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)nf_ct_expect_iterate_destroy (expect_iter_me, me);nf_ct_iterate_destroy (unhelp, me); + +/* nf_ct_iterate_destroy() does an unconditional synchronize_rcu() as +* last step, this ensures rcu readers of exp->helper are done. +* No need for another synchronize_rcu() here. +*/ }EXPORT_SYMBOL_GPL (nf_conntrack_helper_unregister);
net/netfilter/nf_conntrack_netlink.c +1 -1
@@ -3566,7 +3566,7 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct, exp->class = class; exp->master = ct; - exp->helper = helper; +rcu_assign_pointer (exp->helper, helper); exp->tuple = *tuple; exp->mask.src.u3 = mask->src.u3; exp->mask.src.u.all = mask->src.u.all;
net/netfilter/nf_conntrack_sip.c +1 -1
@@ -1303,7 +1303,7 @@ static int process_register_request(struct sk_buff *skb, unsigned int protoff,nf_ct_expect_init (exp,SIP_EXPECT_SIGNALLING ,nf_ct_l3num (ct), saddr, &daddr, proto,NULL , &port); exp->timeout.expires = sip_timeout *HZ ; - exp->helper = helper; +rcu_assign_pointer (exp->helper, helper); exp->flags =NF_CT_EXPECT_PERMANENT |NF_CT_EXPECT_INACTIVE ; hooks =rcu_dereference (nf_nat_sip_hooks);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 90/311 netfilter: nf_conntrack_expect: use expect->helper
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit f01794106042ee27e54af6fdf5b319a2fe3df94d ]
Use expect->helper in ctnetlink and /proc to dump the helper name. Using nfct_help() without holding a reference to the master conntrack is unsafe.
Use exp->master->helper in ctnetlink path if userspace does not provide an explicit helper when creating an expectation to retain the existing behaviour. The ctnetlink expectation path holds the reference on the master conntrack and nf_conntrack_expect lock and the nfnetlink glue path refers to the master ct that is attached to the skb.
Stable-dep-of: 917b61fa2042 ("netfilter: ctnetlink: ignore explicit helper on new expectations")
--- net/netfilter/nf_conntrack_expect.c | 2 +- net/netfilter/nf_conntrack_helper.c | 6 +----- net/netfilter/nf_conntrack_netlink.c | 24 ++++++++++-------------- net/netfilter/nf_conntrack_sip.c | 2 +- 4 files changed, 13 insertions(+), 21 deletions(-)
net/netfilter/nf_conntrack_expect.c +1 -1
@@ -670,7 +670,7 @@ static int exp_seq_show(struct seq_file *s, void *v)if (expect->flags &NF_CT_EXPECT_USERSPACE )seq_printf (s,"%sUSERSPACE" , delim); - helper =rcu_dereference (nfct_help (expect->master)->helper); + helper =rcu_dereference (expect->helper);if (helper) {seq_printf (s,"%s%s" , expect->flags ?" " :"" , helper->name);if (helper->expect_policy[expect->class].name[0 ])
net/netfilter/nf_conntrack_helper.c +1 -5
@@ -395,14 +395,10 @@ EXPORT_SYMBOL_GPL(nf_conntrack_helper_register);static bool expect_iter_me (struct nf_conntrack_expect *exp,void *data) { -struct nf_conn_help *help =nfct_help (exp->master);const struct nf_conntrack_helper *me = data;const struct nf_conntrack_helper *this; -if (rcu_access_pointer (exp->helper) == me) -return true; - - this =rcu_dereference_protected (help->helper, + this =rcu_dereference_protected (exp->helper,lockdep_is_held (&nf_conntrack_expect_lock));return this == me; }
net/netfilter/nf_conntrack_netlink.c +10 -14
@@ -3005,7 +3005,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, {struct nf_conn *master = exp->master;long timeout = ((long )exp->timeout.expires - (long )jiffies) /HZ ; -struct nf_conn_help *help; +struct nf_conntrack_helper *helper;#if IS_ENABLED (CONFIG_NF_NAT )struct nlattr *nest_parms;struct nf_conntrack_tuple nat_tuple = {};
@@ -3050,15 +3050,12 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb, nla_put_be32(skb, CTA_EXPECT_FLAGS, htonl(exp->flags)) || nla_put_be32(skb, CTA_EXPECT_CLASS, htonl(exp->class))) goto nla_put_failure; - help =nfct_help (master); -if (help) { -struct nf_conntrack_helper *helper; - helper =rcu_dereference (help->helper); -if (helper && -nla_put_string (skb,CTA_EXPECT_HELP_NAME , helper->name)) - goto nla_put_failure; - } + helper =rcu_dereference (exp->helper); +if (helper && +nla_put_string (skb,CTA_EXPECT_HELP_NAME , helper->name)) + goto nla_put_failure; + expfn =nf_ct_helper_expectfn_find_by_symbol (exp->expectfn);if (expfn !=NULL &&nla_put_string (skb,CTA_EXPECT_FN , expfn->name))
@@ -3387,12 +3384,9 @@ static int ctnetlink_get_expect(struct sk_buff *skb,static bool expect_iter_name (struct nf_conntrack_expect *exp,void *data) {struct nf_conntrack_helper *helper; -const struct nf_conn_help *m_help;const char *name = data; - m_help =nfct_help (exp->master); - - helper =rcu_dereference (m_help->helper); + helper =rcu_dereference (exp->helper);if (!helper)return false;
@@ -3527,9 +3521,9 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,struct nf_conntrack_tuple *tuple, struct nf_conntrack_tuple *mask) { - u_int32_t class = 0; struct nf_conntrack_expect *exp;struct nf_conn_help *help; +u32 class =0 ;int err; help =nfct_help (ct);
@@ -3566,6 +3560,8 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct, exp->class = class; exp->master = ct; +if (!helper) + helper =rcu_dereference (help->helper);rcu_assign_pointer (exp->helper, helper); exp->tuple = *tuple; exp->mask.src.u3 = mask->src.u3;
net/netfilter/nf_conntrack_sip.c +1 -1
@@ -924,7 +924,7 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff, exp =__nf_ct_expect_find (net,nf_ct_zone (ct), &tuple);if (!exp || exp->master == ct || -nfct_help (exp->master)->helper !=nfct_help (ct)->helper || + exp->helper !=nfct_help (ct)->helper || exp->class != class)break ;#if IS_ENABLED (CONFIG_NF_NAT )
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 91/311 netfilter: nf_conntrack_expect: store netns and zone in expectation
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit 02a3231b6d82efe750da6554ebf280e4a6f78756 ]
__nf_ct_expect_find() and nf_ct_expect_find_get() are called under rcu_read_lock() but they dereference the master conntrack via exp->master.
Since the expectation does not hold a reference on the master conntrack, this could be dying conntrack or different recycled conntrack than the real master due to SLAB_TYPESAFE_RCU.
Store the netns, the master_tuple and the zone in struct nf_conntrack_expect as a safety measure.
This patch is required by the follow up fix not to dump expectations that do not belong to this netns.
Stable-dep-of: 917b61fa2042 ("netfilter: ctnetlink: ignore explicit helper on new expectations")
--- include/net/netfilter/nf_conntrack_expect.h | 18 +++++++++++++++++- net/netfilter/nf_conntrack_broadcast.c | 6 +++++- net/netfilter/nf_conntrack_expect.c | 9 +++++++-- net/netfilter/nf_conntrack_netlink.c | 5 +++++ 4 files changed, 34 insertions(+), 4 deletions(-)
include/net/netfilter/nf_conntrack_expect.h +17 -1
@@ -22,10 +22,16 @@ struct nf_conntrack_expect {/* Hash member */ struct hlist_node hnode; +/* Network namespace */ +possible_net_t net; +/* We expect this tuple, with the following mask */ struct nf_conntrack_tuple tuple;struct nf_conntrack_tuple_mask mask; +#ifdef CONFIG_NF_CONNTRACK_ZONES +struct nf_conntrack_zone zone; +#endif /* Usage count. */ refcount_t use;
@@ -62,7 +68,17 @@ struct nf_conntrack_expect {static inline struct net *nf_ct_exp_net (struct nf_conntrack_expect *exp) { -return nf_ct_net (exp->master); +return read_pnet (&exp->net); +} + +static inline bool nf_ct_exp_zone_equal_any (const struct nf_conntrack_expect *a, +const struct nf_conntrack_zone *b) +{ +#ifdef CONFIG_NF_CONNTRACK_ZONES +return a->zone.id == b->id; +#else +return true; +#endif }#define NF_CT_EXP_POLICY_NAME_LEN 16
net/netfilter/nf_conntrack_broadcast.c +5 -1
@@ -21,6 +21,7 @@ int nf_conntrack_broadcast_help(struct sk_buff *skb, unsigned int timeout) {const struct nf_conntrack_helper *helper; +struct net *net =read_pnet (&ct->ct_net);struct nf_conntrack_expect *exp;struct iphdr *iph =ip_hdr (skb);struct rtable *rt =skb_rtable (skb);
@@ -71,7 +72,10 @@ int nf_conntrack_broadcast_help(struct sk_buff *skb, exp->flags =NF_CT_EXPECT_PERMANENT ; exp->class =NF_CT_EXPECT_CLASS_DEFAULT ;rcu_assign_pointer (exp->helper, helper); - +write_pnet (&exp->net, net); +#ifdef CONFIG_NF_CONNTRACK_ZONES + exp->zone = ct->zone; +#endif nf_ct_expect_related (exp,0 );nf_ct_expect_put (exp);
net/netfilter/nf_conntrack_expect.c +7 -2
@@ -112,8 +112,8 @@ nf_ct_exp_equal(const struct nf_conntrack_tuple *tuple, const struct net *net) {return nf_ct_tuple_mask_cmp (tuple, &i->tuple, &i->mask) && -net_eq (net,nf_ct_net (i->master)) && -nf_ct_zone_equal_any (i->master, zone); +net_eq (net,read_pnet (&i->net)) && +nf_ct_exp_zone_equal_any (i, zone); }bool nf_ct_remove_expect (struct nf_conntrack_expect *exp)
@@ -321,6 +321,7 @@ void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class, {struct nf_conntrack_helper *helper =NULL ;struct nf_conn *ct = exp->master; +struct net *net =read_pnet (&ct->ct_net);struct nf_conn_help *help;int len;
@@ -338,6 +339,10 @@ void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class, helper =rcu_dereference (help->helper);rcu_assign_pointer (exp->helper, helper); +write_pnet (&exp->net, net); +#ifdef CONFIG_NF_CONNTRACK_ZONES + exp->zone = ct->zone; +#endif exp->tuple.src.l3num = family; exp->tuple.dst.protonum = proto;
net/netfilter/nf_conntrack_netlink.c +5 -0
@@ -3521,6 +3521,7 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,struct nf_conntrack_tuple *tuple, struct nf_conntrack_tuple *mask) { + struct net *net = read_pnet(&ct->ct_net);struct nf_conntrack_expect *exp;struct nf_conn_help *help;u32 class =0 ;
@@ -3560,6 +3561,10 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct, exp->class = class; exp->master = ct; +write_pnet (&exp->net, net); +#ifdef CONFIG_NF_CONNTRACK_ZONES + exp->zone = ct->zone; +#endif if (!helper) helper =rcu_dereference (help->helper);rcu_assign_pointer (exp->helper, helper);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 92/311 netfilter: ctnetlink: ignore explicit helper on new expectations
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit 917b61fa2042f11e2af4c428e43f08199586633a ]
Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace suggests for this expectation.
This was uncovered when validating CTA_EXPECT_CLASS via different helper provided by userspace than the existing master conntrack helper:
BUG: KASAN: slab-out-of-bounds in nf_ct_expect_related_report+0x2479/0x27c0 Read of size 4 at addr ffff8880043fe408 by task poc/102 Call Trace: nf_ct_expect_related_report+0x2479/0x27c0 ctnetlink_create_expect+0x22b/0x3b0 ctnetlink_new_expect+0x4bd/0x5c0 nfnetlink_rcv_msg+0x67a/0x950 netlink_rcv_skb+0x120/0x350
Allowing to read kernel memory bytes off the expectation boundary.
CTA_EXPECT_HELP_NAME is still used to offer the helper name to userspace via netlink dump.
--- net/netfilter/nf_conntrack_netlink.c | 54 +++++----------------------- 1 file changed, 9 insertions(+), 45 deletions(-)
net/netfilter/nf_conntrack_netlink.c +9 -45
@@ -2635,7 +2635,6 @@ static const struct nla_policy exp_nla_policy[CTA_EXPECT_MAX+1] = {static struct nf_conntrack_expect *ctnetlink_alloc_expect (const struct nlattr *const cda[],struct nf_conn *ct, -struct nf_conntrack_helper *helper,struct nf_conntrack_tuple *tuple,struct nf_conntrack_tuple *mask);
@@ -2864,7 +2863,6 @@ ctnetlink_glue_attach_expect(const struct nlattr *attr, struct nf_conn *ct, {struct nlattr *cda[CTA_EXPECT_MAX +1 ];struct nf_conntrack_tuple tuple, mask; -struct nf_conntrack_helper *helper =NULL ;struct nf_conntrack_expect *exp;int err;
@@ -2878,17 +2876,8 @@ ctnetlink_glue_attach_expect(const struct nlattr *attr, struct nf_conn *ct,if (err <0 )return err; -if (cda[CTA_EXPECT_HELP_NAME ]) { -const char *helpname =nla_data (cda[CTA_EXPECT_HELP_NAME ]); - - helper =__nf_conntrack_helper_find (helpname,nf_ct_l3num (ct), -nf_ct_protonum (ct)); -if (helper ==NULL ) -return -EOPNOTSUPP ; - } - exp =ctnetlink_alloc_expect ((const struct nlattr *const *)cda, ct, - helper, &tuple, &mask); + &tuple, &mask);if (IS_ERR (exp))return PTR_ERR (exp);
@@ -3517,11 +3506,11 @@ ctnetlink_parse_expect_nat(const struct nlattr *attr,static struct nf_conntrack_expect *ctnetlink_alloc_expect (const struct nlattr *const cda[],struct nf_conn *ct, -struct nf_conntrack_helper *helper,struct nf_conntrack_tuple *tuple,struct nf_conntrack_tuple *mask) {struct net *net =read_pnet (&ct->ct_net); +struct nf_conntrack_helper *helper;struct nf_conntrack_expect *exp;struct nf_conn_help *help;u32 class =0 ;
@@ -3531,7 +3520,11 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,if (!help)return ERR_PTR (-EOPNOTSUPP ); -if (cda[CTA_EXPECT_CLASS ] && helper) { + helper =rcu_dereference (help->helper); +if (!helper) +return ERR_PTR (-EOPNOTSUPP ); + +if (cda[CTA_EXPECT_CLASS ]) { class =ntohl (nla_get_be32 (cda[CTA_EXPECT_CLASS ]));if (class > helper->expect_class_max)return ERR_PTR (-EINVAL );
@@ -3565,8 +3558,6 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,#ifdef CONFIG_NF_CONNTRACK_ZONES exp->zone = ct->zone;#endif -if (!helper) - helper =rcu_dereference (help->helper);rcu_assign_pointer (exp->helper, helper); exp->tuple = *tuple; exp->mask.src.u3 = mask->src.u3;
@@ -3598,7 +3589,6 @@ ctnetlink_create_expect(struct net *net, {struct nf_conntrack_tuple tuple, mask, master_tuple;struct nf_conntrack_tuple_hash *h =NULL ; -struct nf_conntrack_helper *helper =NULL ;struct nf_conntrack_expect *exp;struct nf_conn *ct;int err;
@@ -3624,33 +3614,7 @@ ctnetlink_create_expect(struct net *net, ct =nf_ct_tuplehash_to_ctrack (h);rcu_read_lock (); -if (cda[CTA_EXPECT_HELP_NAME ]) { -const char *helpname =nla_data (cda[CTA_EXPECT_HELP_NAME ]); - - helper =__nf_conntrack_helper_find (helpname, u3, -nf_ct_protonum (ct)); -if (helper ==NULL ) { -rcu_read_unlock (); -#ifdef CONFIG_MODULES -if (request_module ("nfct-helper-%s" , helpname) <0 ) { - err = -EOPNOTSUPP ; - goto err_ct; - } -rcu_read_lock (); - helper =__nf_conntrack_helper_find (helpname, u3, -nf_ct_protonum (ct)); -if (helper) { - err = -EAGAIN ; - goto err_rcu; - } -rcu_read_unlock (); -#endif - err = -EOPNOTSUPP ; - goto err_ct; - } - } - - exp =ctnetlink_alloc_expect (cda, ct, helper, &tuple, &mask); + exp =ctnetlink_alloc_expect (cda, ct, &tuple, &mask);if (IS_ERR (exp)) { err =PTR_ERR (exp); goto err_rcu;
@@ -3660,8 +3624,8 @@ ctnetlink_create_expect(struct net *net,nf_ct_expect_put (exp); err_rcu:rcu_read_unlock (); -err_ct:nf_ct_put (ct); +return err; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 93/311 netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit 3d5d488f11776738deab9da336038add95d342d1 ]
Weiming Shi says:
xt_match and xt_target structs registered with NFPROTO_UNSPEC can be loaded by any protocol family through nft_compat. When such a match/target sets .hooks to restrict which hooks it may run on, the bitmask uses NF_INET_* constants. This is only correct for families whose hook layout matches NF_INET_*: IPv4, IPv6, INET, and bridge all share the same five hooks (PRE_ROUTING ... POST_ROUTING).
ARP only has three hooks (IN=0, OUT=1, FORWARD=2) with different semantics. Because NF_ARP_OUT == 1 == NF_INET_LOCAL_IN, the .hooks validation silently passes for the wrong reasons, allowing matches to run on ARP chains where the hook assumptions (e.g. state->in being set on input hooks) do not hold. This leads to NULL pointer dereferences; xt_devgroup is one concrete example:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000044: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000220-0x0000000000000227] RIP: 0010:devgroup_mt+0xff/0x350 Call Trace: <TASK> nft_match_eval (net/netfilter/nft_compat.c:407) nft_do_chain (net/netfilter/nf_tables_core.c:285) nft_do_chain_arp (net/netfilter/nft_chain_filter.c:61) nf_hook_slow (net/netfilter/core.c:623) arp_xmit (net/ipv4/arp.c:666) </TASK> Kernel panic - not syncing: Fatal exception in interrupt
Fix it by restricting arptables to NFPROTO_ARP extensions only. Note that arptables-legacy only supports:
- arpt_CLASSIFY
- arpt_mangle
- arpt_MARK
that provide explicit NFPROTO_ARP match/target declarations.
--- net/netfilter/x_tables.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
net/netfilter/x_tables.c +23 -0
@@ -501,6 +501,17 @@ int xt_check_match(struct xt_mtchk_param *par, par->match->table, par->table);return -EINVAL ; } + +/* NFPROTO_UNSPEC implies NF_INET_* hooks which do not overlap with +* NF_ARP_IN,OUT,FORWARD, allow explicit extensions with NFPROTO_ARP +* support. +*/ +if (par->family ==NFPROTO_ARP && + par->match->family !=NFPROTO_ARP ) { +pr_info_ratelimited ("%s_tables: %s match: not valid for this family\n" , + xt_prefix[par->family], par->match->name); +return -EINVAL ; + }if (par->match->hooks && (par->hook_mask & ~par->match->hooks) !=0 ) {char used[64 ], allow[64 ];
@@ -1016,6 +1027,18 @@ int xt_check_target(struct xt_tgchk_param *par, par->target->table, par->table);return -EINVAL ; } + +/* NFPROTO_UNSPEC implies NF_INET_* hooks which do not overlap with +* NF_ARP_IN,OUT,FORWARD, allow explicit extensions with NFPROTO_ARP +* support. +*/ +if (par->family ==NFPROTO_ARP && + par->target->family !=NFPROTO_ARP ) { +pr_info_ratelimited ("%s_tables: %s target: not valid for this family\n" , + xt_prefix[par->family], par->target->name); +return -EINVAL ; + } +if (par->target->hooks && (par->hook_mask & ~par->target->hooks) !=0 ) {char used[64 ], allow[64 ];
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 94/311 netfilter: nf_tables: reject immediate NF_QUEUE verdict
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso <[email protected]>
[ Upstream commit da107398cbd4bbdb6bffecb2ce86d5c9384f4cec ]
nft_queue is always used from userspace nftables to deliver the NF_QUEUE verdict. Immediately emitting an NF_QUEUE verdict is never used by the userspace nft tools, so reject immediate NF_QUEUE verdicts.
The arp family does not provide queue support, but such an immediate verdict is still reachable. Globally reject NF_QUEUE immediate verdicts to address this issue.
--- net/netfilter/nf_tables_api.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
net/netfilter/nf_tables_api.c +5 -2
@@ -11667,8 +11667,6 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,switch (data->verdict.code) {case NF_ACCEPT :case NF_DROP : -case NF_QUEUE : -break ;case NFT_CONTINUE :case NFT_BREAK :case NFT_RETURN :
@@ -11703,6 +11701,11 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data, data->verdict.chain = chain;break ; +case NF_QUEUE : +/* The nft_queue expression is used for this purpose, an +* immediate NF_QUEUE verdict should not ever be seen here. +*/ + fallthrough;default :return -EINVAL ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 95/311 Bluetooth: hci_sync: call destroy in hci_cmd_sync_run if immediate
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pauli Virtanen <[email protected]>
[ Upstream commit a834a0b66ec6fb743377201a0f4229bb2503f4ce ]
hci_cmd_sync_run() may run the work immediately if called from existing sync work (otherwise it queues a new sync work). In this case it fails to call the destroy() function.
On immediate run, make it behave same way as if item was queued
successfully: call destroy, and return 0.
The only callsite is hci_abort_conn() via hci_cmd_sync_run_once(), and this changes its return value. However, its return value is not used except as the return value for hci_disconnect(), and nothing uses the return value of hci_disconnect(). Hence there should be no behavior change anywhere.
--- net/bluetooth/hci_sync.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
net/bluetooth/hci_sync.c +9 -2
@@ -801,8 +801,15 @@ int hci_cmd_sync_run(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,return -ENETDOWN ;/* If on cmd_sync_work then run immediately otherwise queue */ -if (current_work () == &hdev->cmd_sync_work) -return func (hdev, data); +if (current_work () == &hdev->cmd_sync_work) { +int err; + + err =func (hdev, data); +if (destroy) +destroy (hdev, data, err); + +return 0 ; + }return hci_cmd_sync_submit (hdev, func, data, destroy); }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 96/311 Bluetooth: SCO: fix race conditions in sco_sock_connect()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Cen Zhang <[email protected]>
[ Upstream commit 8a5b0135d4a5d9683203a3d9a12a711ccec5936b ]
sco_sock_connect() checks sk_state and sk_type without holding the socket lock. Two concurrent connect() syscalls on the same socket can both pass the check and enter sco_connect(), leading to use-after-free.
The buggy scenario involves three participants and was confirmed with additional logging instrumentation:
Thread A (connect): HCI disconnect: Thread B (connect):
sco_sock_connect(sk) sco_sock_connect(sk)
sk_state==BT_OPEN sk_state==BT_OPEN
(pass, no lock) (pass, no lock)
sco_connect(sk): sco_connect(sk):
hci_dev_lock hci_dev_lock
hci_connect_sco <- blocked
-> hcon1
sco_conn_add->conn1
lock_sock(sk)
sco_chan_add:
conn1->sk = sk
sk->conn = conn1
sk_state=BT_CONNECT
release_sock
hci_dev_unlock
hci_dev_lock
sco_conn_del:
lock_sock(sk)
sco_chan_del:
sk->conn=NULL
conn1->sk=NULL
sk_state=
BT_CLOSED
SOCK_ZAPPED
release_sock
hci_dev_unlock
(unblocked)
hci_connect_sco
-> hcon2
sco_conn_add
-> conn2
lock_sock(sk)
sco_chan_add:
sk->conn=conn2
sk_state=
BT_CONNECT
// zombie sk!
release_sock
hci_dev_unlockThread B revives a BT_CLOSED + SOCK_ZAPPED socket back to BT_CONNECT. Subsequent cleanup triggers double sock_put() and use-after-free. Meanwhile conn1 is leaked as it was orphaned when sco_conn_del() cleared the association.
Fix this by:
- Moving lock_sock() before the sk_state/sk_type checks in sco_sock_connect() to serialize concurrent connect attempts
- Fixing the sk_type != SOCK_SEQPACKET check to actually return the error instead of just assigning it
- Adding a state re-check in sco_connect() after lock_sock() to catch state changes during the window between the locks
- Adding sco_pi(sk)->conn check in sco_chan_add() to prevent double-attach of a socket to multiple connections
- Adding hci_conn_drop() on sco_chan_add failure to prevent HCI connection leaks
--- net/bluetooth/sco.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-)
net/bluetooth/sco.c +21 -5
@@ -298,7 +298,7 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk,int err =0 ;sco_conn_lock (conn); -if (conn->sk) +if (conn->sk ||sco_pi (sk)->conn) err = -EBUSY ;else __sco_chan_add (conn, sk, parent);
@@ -353,9 +353,20 @@ static int sco_connect(struct sock *sk)lock_sock (sk); +/* Recheck state after reacquiring the socket lock, as another +* thread may have changed it (e.g., closed the socket). +*/ +if (sk->sk_state !=BT_OPEN && sk->sk_state !=BT_BOUND ) { +release_sock (sk); +hci_conn_drop (hcon); + err = -EBADFD ; + goto unlock; + } + err =sco_chan_add (conn, sk,NULL );if (err) {release_sock (sk); +hci_conn_drop (hcon); goto unlock; }
@@ -656,13 +667,18 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr_unsized *addr, addr->sa_family != AF_BLUETOOTH)return -EINVAL ; -if (sk->sk_state !=BT_OPEN && sk->sk_state !=BT_BOUND ) +lock_sock (sk); + +if (sk->sk_state !=BT_OPEN && sk->sk_state !=BT_BOUND ) { +release_sock (sk);return -EBADFD ; + } -if (sk->sk_type !=SOCK_SEQPACKET ) - err = -EINVAL ; +if (sk->sk_type !=SOCK_SEQPACKET ) { +release_sock (sk); +return -EINVAL ; + } -lock_sock (sk);/* Set destination address and psm */ bacpy (&sco_pi (sk)->dst, &sa->sco_bdaddr);release_sock (sk);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 97/311 Bluetooth: L2CAP: Add support for setting BT_PHY
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luiz Augusto von Dentz <[email protected]>
[ Upstream commit 132c0779d4a2d08541519cf04783bca52c6ec85c ]
This enables client to use setsockopt(BT_PHY) to set the connection packet type/PHY:
Example setting BT_PHY_BR_1M_1SLOT:
< HCI Command: Change Conne.. (0x01|0x000f) plen 4
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation) Packet type: 0x331e
2-DH1 may not be used
3-DH1 may not be used
DM1 may be used
DH1 may be used
2-DH3 may not be used
3-DH3 may not be used
2-DH5 may not be used
3-DH5 may not be used
Quoted 1 line
HCI Event: Command Status (
0x0f) plen 4
Change Connection Packet Type (0x01|0x000f) ncmd 1
Status: Success (0x00)Quoted 1 line
HCI Event: Connection Packet Typ.. (
0x1d) plen 5
Status: Success (0x00)
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation) Packet type: 0x331e
2-DH1 may not be used
3-DH1 may not be used
DM1 may be used
DH1 may be used
2-DH3 may not be used
3-DH3 may not be used
2-DH5 may not be used
Example setting BT_PHY_LE_1M_TX and BT_PHY_LE_1M_RX:
< HCI Command: LE Set PHY (0x08|0x0032) plen 7
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
All PHYs preference: 0x00
TX PHYs preference: 0x01
LE 1M
RX PHYs preference: 0x01
LE 1M
PHY options preference: Reserved (0x0000)Quoted 1 line
HCI Event: Command Status (
0x0f) plen 4
LE Set PHY (0x08|0x0032) ncmd 1
Status: Success (0x00)Quoted 1 line
HCI Event: LE Meta Event (
0x3e) plen 6
LE PHY Update Complete (0x0c)
Status: Success (0x00)
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
TX PHY: LE 1M (0x01)
RX PHY: LE 1M (0x01)Stable-dep-of: 035c25007c9e ("Bluetooth: hci_sync: Fix UAF in le_read_features_complete")
--- include/net/bluetooth/bluetooth.h | 39 ++++++----- include/net/bluetooth/hci.h | 9 +++ include/net/bluetooth/hci_core.h | 1 + include/net/bluetooth/hci_sync.h | 3 + net/bluetooth/hci_conn.c | 105 ++++++++++++++++++++++++++++++ net/bluetooth/hci_event.c | 26 ++++++++ net/bluetooth/hci_sync.c | 72 ++++++++++++++++++++ net/bluetooth/l2cap_sock.c | 20 +++++- 8 files changed, 259 insertions(+), 16 deletions(-)
include/net/bluetooth/bluetooth.h +24 -15
@@ -130,21 +130,30 @@ struct bt_voice {#define BT_RCVMTU 13#define BT_PHY 14 -#define BT_PHY_BR_1M_1SLOT 0x00000001 -#define BT_PHY_BR_1M_3SLOT 0x00000002 -#define BT_PHY_BR_1M_5SLOT 0x00000004 -#define BT_PHY_EDR_2M_1SLOT 0x00000008 -#define BT_PHY_EDR_2M_3SLOT 0x00000010 -#define BT_PHY_EDR_2M_5SLOT 0x00000020 -#define BT_PHY_EDR_3M_1SLOT 0x00000040 -#define BT_PHY_EDR_3M_3SLOT 0x00000080 -#define BT_PHY_EDR_3M_5SLOT 0x00000100 -#define BT_PHY_LE_1M_TX 0x00000200 -#define BT_PHY_LE_1M_RX 0x00000400 -#define BT_PHY_LE_2M_TX 0x00000800 -#define BT_PHY_LE_2M_RX 0x00001000 -#define BT_PHY_LE_CODED_TX 0x00002000 -#define BT_PHY_LE_CODED_RX 0x00004000 +#define BT_PHY_BR_1M_1SLOT BIT(0) +#define BT_PHY_BR_1M_3SLOT BIT(1) +#define BT_PHY_BR_1M_5SLOT BIT(2) +#define BT_PHY_EDR_2M_1SLOT BIT(3) +#define BT_PHY_EDR_2M_3SLOT BIT(4) +#define BT_PHY_EDR_2M_5SLOT BIT(5) +#define BT_PHY_EDR_3M_1SLOT BIT(6) +#define BT_PHY_EDR_3M_3SLOT BIT(7) +#define BT_PHY_EDR_3M_5SLOT BIT(8) +#define BT_PHY_LE_1M_TX BIT(9) +#define BT_PHY_LE_1M_RX BIT(10) +#define BT_PHY_LE_2M_TX BIT(11) +#define BT_PHY_LE_2M_RX BIT(12) +#define BT_PHY_LE_CODED_TX BIT(13) +#define BT_PHY_LE_CODED_RX BIT(14) + +#define BT_PHY_BREDR_MASK (BT_PHY_BR_1M_1SLOT | BT_PHY_BR_1M_3SLOT | \ + BT_PHY_BR_1M_5SLOT | BT_PHY_EDR_2M_1SLOT | \ + BT_PHY_EDR_2M_3SLOT | BT_PHY_EDR_2M_5SLOT | \ + BT_PHY_EDR_3M_1SLOT | BT_PHY_EDR_3M_3SLOT | \ + BT_PHY_EDR_3M_5SLOT) +#define BT_PHY_LE_MASK (BT_PHY_LE_1M_TX | BT_PHY_LE_1M_RX | \ + BT_PHY_LE_2M_TX | BT_PHY_LE_2M_RX | \ + BT_PHY_LE_CODED_TX | BT_PHY_LE_CODED_RX)#define BT_MODE 15
include/net/bluetooth/hci.h +9 -0
@@ -1883,6 +1883,15 @@ struct hci_cp_le_set_default_phy {#define HCI_LE_SET_PHY_2M 0x02#define HCI_LE_SET_PHY_CODED 0x04 +#define HCI_OP_LE_SET_PHY 0x2032 +struct hci_cp_le_set_phy { +__le16 handle; +__u8 all_phys; +__u8 tx_phys; +__u8 rx_phys; +__le16 phy_opts; +} __packed; +#define HCI_OP_LE_SET_EXT_SCAN_PARAMS 0x2041struct hci_cp_le_set_ext_scan_params {__u8 own_addr_type;
include/net/bluetooth/hci_core.h +1 -0
@@ -2336,6 +2336,7 @@ void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);void *hci_recv_event_data (struct hci_dev *hdev,__u8 event);u32 hci_conn_get_phy (struct hci_conn *conn); +int hci_conn_set_phy (struct hci_conn *conn,u32 phys);/* ----- HCI Sockets ----- */ void hci_send_to_sock (struct hci_dev *hdev,struct sk_buff *skb);
include/net/bluetooth/hci_sync.h +3 -0
@@ -191,3 +191,6 @@ int hci_connect_big_sync(struct hci_dev *hdev, struct hci_conn *conn);int hci_past_sync (struct hci_conn *conn,struct hci_conn *le);int hci_le_read_remote_features (struct hci_conn *conn); + +int hci_acl_change_pkt_type (struct hci_conn *conn,u16 pkt_type); +int hci_le_set_phy (struct hci_conn *conn,u8 tx_phys,u8 rx_phys);
net/bluetooth/hci_conn.c +105 -0
111 lines not on this page · raw message
net/bluetooth/hci_event.c +26 -0
@@ -2869,6 +2869,31 @@ static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)hci_dev_unlock (hdev); } +static void hci_cs_le_set_phy (struct hci_dev *hdev,u8 status) +{ +struct hci_cp_le_set_phy *cp; +struct hci_conn *conn; + +bt_dev_dbg (hdev,"status 0x%2.2x" , status); + +if (status) +return ; + + cp =hci_sent_cmd_data (hdev,HCI_OP_LE_SET_PHY ); +if (!cp) +return ; + +hci_dev_lock (hdev); + + conn =hci_conn_hash_lookup_handle (hdev,__le16_to_cpu (cp->handle)); +if (conn) { + conn->le_tx_def_phys = cp->tx_phys; + conn->le_rx_def_phys = cp->rx_phys; + } + +hci_dev_unlock (hdev); +} +static void hci_cs_le_read_remote_features (struct hci_dev *hdev,u8 status) {struct hci_cp_le_read_remote_features *cp;
@@ -4359,6 +4384,7 @@ static const struct hci_cs {HCI_CS (HCI_OP_LE_CREATE_CONN , hci_cs_le_create_conn),HCI_CS (HCI_OP_LE_READ_REMOTE_FEATURES , hci_cs_le_read_remote_features),HCI_CS (HCI_OP_LE_START_ENC , hci_cs_le_start_enc), +HCI_CS (HCI_OP_LE_SET_PHY , hci_cs_le_set_phy),HCI_CS (HCI_OP_LE_EXT_CREATE_CONN , hci_cs_le_ext_create_conn),HCI_CS (HCI_OP_LE_CREATE_CIS , hci_cs_le_create_cis), HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
net/bluetooth/hci_sync.c +72 -0
75 lines not on this page · raw message
net/bluetooth/l2cap_sock.c +19 -1
@@ -885,7 +885,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,struct bt_power pwr;struct l2cap_conn *conn;int err =0 ; -u32 opt; +u32 opt, phys;u16 mtu;u8 mode;
@@ -1066,6 +1066,24 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,break ; +case BT_PHY : +if (sk->sk_state !=BT_CONNECTED ) { + err = -ENOTCONN ; +break ; + } + + err =copy_safe_from_sockptr (&phys,sizeof (phys), optval, + optlen); +if (err) +break ; + +if (!chan->conn) +break ; + + conn = chan->conn; + err =hci_conn_set_phy (conn->hcon, phys); +break ; +case BT_MODE :if (!enable_ecred) { err = -ENOPROTOOPT ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 98/311 Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pauli Virtanen <[email protected]>
[ Upstream commit 2969554bcfccb5c609f6b6cd4a014933f3a66dd0 ]
hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources.
Change the function to return -EEXIST if queue item already exists.
Modify all callsites to handle that.
Stable-dep-of: 035c25007c9e ("Bluetooth: hci_sync: Fix UAF in le_read_features_complete")
--- net/bluetooth/hci_sync.c | 53 +++++++++++++++++++++++++++------------- 1 file changed, 36 insertions(+), 17 deletions(-)
net/bluetooth/hci_sync.c +36 -17
@@ -780,7 +780,7 @@ int hci_cmd_sync_queue_once(struct hci_dev *hdev, hci_cmd_sync_work_func_t func, void *data, hci_cmd_sync_work_destroy_t destroy) { if (hci_cmd_sync_lookup_entry(hdev, func, data, destroy)) - return 0; + return -EEXIST;return hci_cmd_sync_queue (hdev, func, data, destroy); }
@@ -3262,6 +3262,8 @@ static int update_passive_scan_sync(struct hci_dev *hdev, void *data)int hci_update_passive_scan (struct hci_dev *hdev) { +int err; +/* Only queue if it would have any effect */ if (!test_bit(HCI_UP, &hdev->flags) || test_bit(HCI_INIT, &hdev->flags) ||
@@ -3271,8 +3273,9 @@ int hci_update_passive_scan(struct hci_dev *hdev) hci_dev_test_flag(hdev, HCI_UNREGISTER))return 0 ; -return hci_cmd_sync_queue_once (hdev, update_passive_scan_sync,NULL , -NULL ); + err =hci_cmd_sync_queue_once (hdev, update_passive_scan_sync,NULL , +NULL ); +return (err == -EEXIST ) ?0 : err; }int hci_write_sc_support_sync (struct hci_dev *hdev,u8 val)
@@ -6934,8 +6937,11 @@ static int hci_acl_create_conn_sync(struct hci_dev *hdev, void *data)int hci_connect_acl_sync (struct hci_dev *hdev,struct hci_conn *conn) { -return hci_cmd_sync_queue_once (hdev, hci_acl_create_conn_sync, conn, -NULL ); +int err; + + err =hci_cmd_sync_queue_once (hdev, hci_acl_create_conn_sync, conn, +NULL ); +return (err == -EEXIST ) ?0 : err; }static void create_le_conn_complete (struct hci_dev *hdev,void *data,int err)
@@ -6971,8 +6977,11 @@ static void create_le_conn_complete(struct hci_dev *hdev, void *data, int err)int hci_connect_le_sync (struct hci_dev *hdev,struct hci_conn *conn) { -return hci_cmd_sync_queue_once (hdev, hci_le_create_conn_sync, conn, - create_le_conn_complete); +int err; + + err =hci_cmd_sync_queue_once (hdev, hci_le_create_conn_sync, conn, + create_le_conn_complete); +return (err == -EEXIST ) ?0 : err; }int hci_cancel_connect_sync (struct hci_dev *hdev,struct hci_conn *conn)
@@ -7179,8 +7188,11 @@ static int hci_le_pa_create_sync(struct hci_dev *hdev, void *data)int hci_connect_pa_sync (struct hci_dev *hdev,struct hci_conn *conn) { -return hci_cmd_sync_queue_once (hdev, hci_le_pa_create_sync, conn, - create_pa_complete); +int err; + + err =hci_cmd_sync_queue_once (hdev, hci_le_pa_create_sync, conn, + create_pa_complete); +return (err == -EEXIST ) ?0 : err; }static void create_big_complete (struct hci_dev *hdev,void *data,int err)
@@ -7242,8 +7254,11 @@ static int hci_le_big_create_sync(struct hci_dev *hdev, void *data)int hci_connect_big_sync (struct hci_dev *hdev,struct hci_conn *conn) { -return hci_cmd_sync_queue_once (hdev, hci_le_big_create_sync, conn, - create_big_complete); +int err; + + err =hci_cmd_sync_queue_once (hdev, hci_le_big_create_sync, conn, + create_big_complete); +return (err == -EEXIST ) ?0 : err; }struct past_data {
@@ -7335,7 +7350,7 @@ int hci_past_sync(struct hci_conn *conn, struct hci_conn *le)if (err)kfree (data); -return err; +return (err == -EEXIST ) ?0 : err; }static void le_read_features_complete (struct hci_dev *hdev,void *data,int err)
@@ -7422,7 +7437,7 @@ int hci_le_read_remote_features(struct hci_conn *conn)else err = -EOPNOTSUPP ; -return err; +return (err == -EEXIST ) ?0 : err; }static void pkt_type_changed (struct hci_dev *hdev,void *data,int err)
@@ -7448,6 +7463,7 @@ int hci_acl_change_pkt_type(struct hci_conn *conn, u16 pkt_type) {struct hci_dev *hdev = conn->hdev;struct hci_cp_change_conn_ptype *cp; +int err; cp =kmalloc (sizeof (*cp),GFP_KERNEL );if (!cp)
@@ -7456,8 +7472,9 @@ int hci_acl_change_pkt_type(struct hci_conn *conn, u16 pkt_type) cp->handle =cpu_to_le16 (conn->handle); cp->pkt_type =cpu_to_le16 (pkt_type); -return hci_cmd_sync_queue_once (hdev, hci_change_conn_ptype_sync, cp, - pkt_type_changed); + err =hci_cmd_sync_queue_once (hdev, hci_change_conn_ptype_sync, cp, + pkt_type_changed); +return (err == -EEXIST ) ?0 : err; }static void le_phy_update_complete (struct hci_dev *hdev,void *data,int err)
@@ -7483,6 +7500,7 @@ int hci_le_set_phy(struct hci_conn *conn, u8 tx_phys, u8 rx_phys) {struct hci_dev *hdev = conn->hdev;struct hci_cp_le_set_phy *cp; +int err; cp =kmalloc (sizeof (*cp),GFP_KERNEL );if (!cp)
@@ -7493,6 +7511,7 @@ int hci_le_set_phy(struct hci_conn *conn, u8 tx_phys, u8 rx_phys) cp->tx_phys = tx_phys; cp->rx_phys = rx_phys; -return hci_cmd_sync_queue_once (hdev, hci_le_set_phy_sync, cp, - le_phy_update_complete); + err =hci_cmd_sync_queue_once (hdev, hci_le_set_phy_sync, cp, + le_phy_update_complete); +return (err == -EEXIST ) ?0 : err; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 99/311 Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pauli Virtanen <[email protected]>
[ Upstream commit aca377208e7f7322bf4e107cdec6e7d7e8aa7a88 ]
When hci_cmd_sync_queue_once() returns with error, the destroy callback will not be called.
Fix leaking references / memory on these failures.
Stable-dep-of: 035c25007c9e ("Bluetooth: hci_sync: Fix UAF in le_read_features_complete")
--- net/bluetooth/hci_sync.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
net/bluetooth/hci_sync.c +11 -2
@@ -7429,13 +7429,16 @@ int hci_le_read_remote_features(struct hci_conn *conn)* role is possible. Otherwise just transition into the * connected state without requesting the remote features. */ -if (conn->out || (hdev->le_features[0 ] &HCI_LE_PERIPHERAL_FEATURES )) +if (conn->out || (hdev->le_features[0 ] &HCI_LE_PERIPHERAL_FEATURES )) { err =hci_cmd_sync_queue_once (hdev, hci_le_read_remote_features_sync,hci_conn_hold (conn), le_read_features_complete); -else +if (err) +hci_conn_drop (conn); + }else { err = -EOPNOTSUPP ; + }return (err == -EEXIST ) ?0 : err; }
@@ -7474,6 +7477,9 @@ int hci_acl_change_pkt_type(struct hci_conn *conn, u16 pkt_type) err =hci_cmd_sync_queue_once (hdev, hci_change_conn_ptype_sync, cp, pkt_type_changed); +if (err) +kfree (cp); +return (err == -EEXIST ) ?0 : err; }
@@ -7513,5 +7519,8 @@ int hci_le_set_phy(struct hci_conn *conn, u8 tx_phys, u8 rx_phys) err =hci_cmd_sync_queue_once (hdev, hci_le_set_phy_sync, cp, le_phy_update_complete); +if (err) +kfree (cp); +return (err == -EEXIST ) ?0 : err; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 100/311 Bluetooth: hci_sync: Fix UAF in le_read_features_complete
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luiz Augusto von Dentz <[email protected]>
[ Upstream commit 035c25007c9e698bef3826070ee34bb6d778020c ]
This fixes the following backtrace caused by hci_conn being freed before le_read_features_complete but after hci_le_read_remote_features_sync so hci_conn_del -> hci_cmd_sync_dequeue is not able to prevent it:
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: slab-use-after-free in atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1383 [inline] BUG: KASAN: slab-use-after-free in hci_conn_drop include/net/bluetooth/hci_core.h:1688 [inline] BUG: KASAN: slab-use-after-free in le_read_features_complete+0x5b/0x340 net/bluetooth/hci_sync.c:7344 Write of size 4 at addr ffff8880796b0010 by task kworker/u9:0/52 CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcd/0x630 mm/kasan/report.c:482 kasan_report+0xe0/0x110 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:194 [inline] kasan_check_range+0x100/0x1b0 mm/kasan/generic.c:200 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:1383 [inline] hci_conn_drop include/net/bluetooth/hci_core.h:1688 [inline] le_read_features_complete+0x5b/0x340 net/bluetooth/hci_sync.c:7344 hci_cmd_sync_work+0x1ff/0x430 net/bluetooth/hci_sync.c:334 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 </TASK> Allocated by task 5932: kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 poison_kmalloc_redzone mm/kasan/common.c:400 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] __hci_conn_add+0xf8/0x1c70 net/bluetooth/hci_conn.c:963 hci_conn_add_unset+0x76/0x100 net/bluetooth/hci_conn.c:1084 le_conn_complete_evt+0x639/0x1f20 net/bluetooth/hci_event.c:5714 hci_le_enh_conn_complete_evt+0x23d/0x380 net/bluetooth/hci_event.c:5861 hci_le_meta_evt+0x357/0x5e0 net/bluetooth/hci_event.c:7408 hci_event_func net/bluetooth/hci_event.c:7716 [inline] hci_event_packet+0x685/0x11c0 net/bluetooth/hci_event.c:7773 hci_rx_work+0x2c9/0xeb0 net/bluetooth/hci_core.c:4076 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Freed by task 5932: kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587 kasan_save_free_info mm/kasan/kasan.h:406 [inline] poison_slab_object mm/kasan/common.c:252 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2540 [inline] slab_free mm/slub.c:6663 [inline] kfree+0x2f8/0x6e0 mm/slub.c:6871 device_release+0xa4/0x240 drivers/base/core.c:2565 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e7/0x590 lib/kobject.c:737 put_device drivers/base/core.c:3797 [inline] device_unregister+0x2f/0xc0 drivers/base/core.c:3920 hci_conn_del_sysfs+0xb4/0x180 net/bluetooth/hci_sysfs.c:79 hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline] hci_conn_del+0x657/0x1180 net/bluetooth/hci_conn.c:1234 hci_disconn_complete_evt+0x410/0xa00 net/bluetooth/hci_event.c:3451 hci_event_func net/bluetooth/hci_event.c:7719 [inline] hci_event_packet+0xa10/0x11c0 net/bluetooth/hci_event.c:7773 hci_rx_work+0x2c9/0xeb0 net/bluetooth/hci_core.c:4076 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 The buggy address belongs to the object at ffff8880796b0000 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 16 bytes inside of
freed 8192-byte region [ffff8880796b0000, ffff8880796b2000)
The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x796b0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88813ff27280 0000000000000000 0000000000000001 raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813ff27280 0000000000000000 0000000000000001
head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0001e5ac01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5657, tgid 5657 (dhcpcd-run-hook), ts 79819636908, free_ts 79814310558
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1af/0x220 mm/page_alloc.c:1845
prep_new_page mm/page_alloc.c:1853 [inline]
get_page_from_freelist+0xd0b/0x31a0 mm/page_alloc.c:3879
__alloc_frozen_pages_noprof+0x25f/0x2440 mm/page_alloc.c:5183
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
alloc_slab_page mm/slub.c:3075 [inline]
allocate_slab mm/slub.c:3248 [inline]
new_slab+0x2c3/0x430 mm/slub.c:3302
___slab_alloc+0xe18/0x1c90 mm/slub.c:4651
__slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4774
__slab_alloc_node mm/slub.c:4850 [inline]
slab_alloc_node mm/slub.c:5246 [inline]
__kmalloc_cache_noprof+0x477/0x800 mm/slub.c:5766
kmalloc_noprof include/linux/slab.h:957 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
tomoyo_print_bprm security/tomoyo/audit.c:26 [inline]
tomoyo_init_log+0xc8a/0x2140 security/tomoyo/audit.c:264
tomoyo_supervisor+0x302/0x13b0 security/tomoyo/common.c:2198
tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline]
tomoyo_env_perm+0x191/0x200 security/tomoyo/environ.c:63
tomoyo_environ security/tomoyo/domain.c:672 [inline]
tomoyo_find_next_domain+0xec1/0x20b0 security/tomoyo/domain.c:888
tomoyo_bprm_check_security security/tomoyo/tomoyo.c:102 [inline]
tomoyo_bprm_check_security+0x12d/0x1d0 security/tomoyo/tomoyo.c:92
security_bprm_check+0x1b9/0x1e0 security/security.c:794
search_binary_handler fs/exec.c:1659 [inline]
exec_binprm fs/exec.c:1701 [inline]
bprm_execve fs/exec.c:1753 [inline]
bprm_execve+0x81e/0x1620 fs/exec.c:1729
do_execveat_common.isra.0+0x4a5/0x610 fs/exec.c:1859
page last free pid 5657 tgid 5657 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2901
discard_slab mm/slub.c:3346 [inline]
__put_partials+0x130/0x170 mm/slub.c:3886
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4c/0xf0 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4948 [inline]
slab_alloc_node mm/slub.c:5258 [inline]
__kmalloc_cache_noprof+0x274/0x800 mm/slub.c:5766
kmalloc_noprof include/linux/slab.h:957 [inline]
tomoyo_print_header security/tomoyo/audit.c:156 [inline]
tomoyo_init_log+0x197/0x2140 security/tomoyo/audit.c:255
tomoyo_supervisor+0x302/0x13b0 security/tomoyo/common.c:2198
tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline]
tomoyo_env_perm+0x191/0x200 security/tomoyo/environ.c:63
tomoyo_environ security/tomoyo/domain.c:672 [inline]
tomoyo_find_next_domain+0xec1/0x20b0 security/tomoyo/domain.c:888
tomoyo_bprm_check_security security/tomoyo/tomoyo.c:102 [inline]
tomoyo_bprm_check_security+0x12d/0x1d0 security/tomoyo/tomoyo.c:92
security_bprm_check+0x1b9/0x1e0 security/security.c:794
search_binary_handler fs/exec.c:1659 [inline]
exec_binprm fs/exec.c:1701 [inline]
bprm_execve fs/exec.c:1753 [inline]
bprm_execve+0x81e/0x1620 fs/exec.c:1729
do_execveat_common.isra.0+0x4a5/0x610 fs/exec.c:1859
do_execve fs/exec.c:1933 [inline]
__do_sys_execve fs/exec.c:2009 [inline]
__se_sys_execve fs/exec.c:2004 [inline]
__x64_sys_execve+0x8e/0xb0 fs/exec.c:2004
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
Memory state around the buggy address:
ffff8880796aff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880796aff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880796b0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880796b0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880796b0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================--- net/bluetooth/hci_sync.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
net/bluetooth/hci_sync.c +5 -5
@@ -7359,10 +7359,8 @@ static void le_read_features_complete(struct hci_dev *hdev, void *data, int err)bt_dev_dbg (hdev,"err %d" , err); -if (err == -ECANCELED ) -return ; -hci_conn_drop (conn); +hci_conn_put (conn); } static int hci_le_read_all_remote_features_sync(struct hci_dev *hdev,
@@ -7432,10 +7430,12 @@ int hci_le_read_remote_features(struct hci_conn *conn)if (conn->out || (hdev->le_features[0 ] &HCI_LE_PERIPHERAL_FEATURES )) { err =hci_cmd_sync_queue_once (hdev, hci_le_read_remote_features_sync, -hci_conn_hold (conn), +hci_conn_hold (hci_conn_get (conn)), le_read_features_complete); -if (err) +if (err) {hci_conn_drop (conn); +hci_conn_put (conn); + } }else { err = -EOPNOTSUPP ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 101/311 Bluetooth: hci_h4: Fix race during initialization
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jonathan Rissanen <[email protected]>
[ Upstream commit 0ffac654e95c1bdfe2d4edf28fb18d6ba1f103e6 ]
Commit 5df5dafc171b ("Bluetooth: hci_uart: Fix another race during initialization") fixed a race for hci commands sent during initialization. However, there is still a race that happens if an hci event from one of these commands is received before HCI_UART_REGISTERED has been set at the end of hci_uart_register_dev(). The event will be ignored which causes the command to fail with a timeout in the log:
"Bluetooth: hci0: command 0x1003 tx timeout"
This is because the hci event receive path (hci_uart_tty_receive -> h4_recv) requires HCI_UART_REGISTERED to be set in h4_recv(), while the hci command transmit path (hci_uart_send_frame -> h4_enqueue) only requires HCI_UART_PROTO_INIT to be set in hci_uart_send_frame().
The check for HCI_UART_REGISTERED was originally added in commit c2578202919a ("Bluetooth: Fix H4 crash from incoming UART packets") to fix a crash caused by hu->hdev being null dereferenced. That can no longer happen: once HCI_UART_PROTO_INIT is set in hci_uart_register_dev() all pointers (hu, hu->priv and hu->hdev) are valid, and hci_uart_tty_receive() already calls h4_recv() on HCI_UART_PROTO_INIT or HCI_UART_PROTO_READY.
Remove the check for HCI_UART_REGISTERED in h4_recv() to fix the race condition.
--- drivers/bluetooth/hci_h4.c | 3 --- 1 file changed, 3 deletions(-)
drivers/bluetooth/hci_h4.c +0 -3
@@ -109,9 +109,6 @@ static int h4_recv(struct hci_uart *hu, const void *data, int count) {struct h4_struct *h4 = hu->priv; -if (!test_bit (HCI_UART_REGISTERED , &hu->flags)) -return -EUNATCH ; - h4->rx_skb =h4_recv_buf (hu, h4->rx_skb, data, count, h4_recv_pkts,ARRAY_SIZE (h4_recv_pkts));if (IS_ERR (h4->rx_skb)) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 102/311 Bluetooth: MGMT: validate LTK enc_size on load
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Keenan Dong <[email protected]>
[ Upstream commit b8dbe9648d69059cfe3a28917bfbf7e61efd7f15 ]
Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer.
Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
--- net/bluetooth/mgmt.c | 3 +++ 1 file changed, 3 insertions(+)
net/bluetooth/mgmt.c +3 -0
@@ -7248,6 +7248,9 @@ static bool ltk_is_valid(struct mgmt_ltk_info *key)if (key->initiator !=0x00 && key->initiator !=0x01 )return false; +if (key->enc_size >sizeof (key->val)) +return false; +switch (key->addr.type) {case BDADDR_LE_PUBLIC :return true;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 103/311 Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pauli Virtanen <[email protected]>
[ Upstream commit a2639a7f0f5bf7d73f337f8f077c19415c62ed2c ]
hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently.
Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.
--- net/bluetooth/hci_conn.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
net/bluetooth/hci_conn.c +7 -1
@@ -1843,9 +1843,13 @@ static int set_cig_params_sync(struct hci_dev *hdev, void *data)u8 aux_num_cis =0 ;u8 cis_id; +hci_dev_lock (hdev); + conn =hci_conn_hash_lookup_cig (hdev, cig_id); -if (!conn) +if (!conn) { +hci_dev_unlock (hdev);return 0 ; + } qos = &conn->iso_qos; pdu->cig_id = cig_id;
@@ -1884,6 +1888,8 @@ static int set_cig_params_sync(struct hci_dev *hdev, void *data) } pdu->num_cis = aux_num_cis; +hci_dev_unlock (hdev); +if (!pdu->num_cis)return 0 ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 104/311 Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pauli Virtanen <[email protected]>
[ Upstream commit b255531b27da336571411248c2a72a350662bd09 ]
hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage.
--- net/bluetooth/hci_event.c | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-)
net/bluetooth/hci_event.c +20 -13
@@ -6767,25 +6767,31 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data, latency =le16_to_cpu (ev->latency); timeout =le16_to_cpu (ev->timeout); +hci_dev_lock (hdev); + hcon =hci_conn_hash_lookup_handle (hdev, handle); -if (!hcon || hcon->state !=BT_CONNECTED ) -return send_conn_param_neg_reply (hdev, handle, -HCI_ERROR_UNKNOWN_CONN_ID ); +if (!hcon || hcon->state !=BT_CONNECTED ) { +send_conn_param_neg_reply (hdev, handle, +HCI_ERROR_UNKNOWN_CONN_ID ); + goto unlock; + } -if (max > hcon->le_conn_max_interval) -return send_conn_param_neg_reply (hdev, handle, -HCI_ERROR_INVALID_LL_PARAMS ); +if (max > hcon->le_conn_max_interval) { +send_conn_param_neg_reply (hdev, handle, +HCI_ERROR_INVALID_LL_PARAMS ); + goto unlock; + } -if (hci_check_conn_params (min, max, latency, timeout)) -return send_conn_param_neg_reply (hdev, handle, -HCI_ERROR_INVALID_LL_PARAMS ); +if (hci_check_conn_params (min, max, latency, timeout)) { +send_conn_param_neg_reply (hdev, handle, +HCI_ERROR_INVALID_LL_PARAMS ); + goto unlock; + }if (hcon->role ==HCI_ROLE_MASTER ) {struct hci_conn_params *params;u8 store_hint; -hci_dev_lock (hdev); - params =hci_conn_params_lookup (hdev, &hcon->dst, hcon->dst_type);if (params) {
@@ -6798,8 +6804,6 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data, store_hint =0x00 ; } -hci_dev_unlock (hdev); -mgmt_new_conn_param (hdev, &hcon->dst, hcon->dst_type, store_hint, min, max, latency, timeout); }
@@ -6813,6 +6817,9 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data, cp.max_ce_len =0 ;hci_send_cmd (hdev,HCI_OP_LE_CONN_PARAM_REQ_REPLY ,sizeof (cp), &cp); + +unlock: +hci_dev_unlock (hdev); } static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 105/311 Bluetooth: MGMT: validate mesh send advertising payload length
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Keenan Dong <[email protected]>
[ Upstream commit bda93eec78cdbfe5cda00785cefebd443e56b88b ]
mesh_send() currently bounds MGMT_OP_MESH_SEND by total command length, but it never verifies that the bytes supplied for the flexible adv_data[] array actually match the embedded adv_data_len field. MGMT_MESH_SEND_SIZE only covers the fixed header, so a truncated command can still pass the existing 20..50 byte range check and later drive the async mesh send path past the end of the queued command buffer.
Keep rejecting zero-length and oversized advertising payloads, but validate adv_data_len explicitly and require the command length to exactly match the flexible array size before queueing the request.
--- net/bluetooth/mgmt.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
net/bluetooth/mgmt.c +11 -3
@@ -2478,6 +2478,7 @@ static int mesh_send(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)struct mgmt_mesh_tx *mesh_tx;struct mgmt_cp_mesh_send *send = data;struct mgmt_rp_mesh_read_features rp; +u16 expected_len;bool sending;int err =0 ;
@@ -2485,12 +2486,19 @@ static int mesh_send(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) !hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))return mgmt_cmd_status (sk, hdev->id,MGMT_OP_MESH_SEND ,MGMT_STATUS_NOT_SUPPORTED ); -if (!hci_dev_test_flag (hdev,HCI_LE_ENABLED ) || - len <=MGMT_MESH_SEND_SIZE || - len > (MGMT_MESH_SEND_SIZE +31 )) +if (!hci_dev_test_flag (hdev,HCI_LE_ENABLED )) +return mgmt_cmd_status (sk, hdev->id,MGMT_OP_MESH_SEND , +MGMT_STATUS_REJECTED ); + +if (!send->adv_data_len || send->adv_data_len >31 )return mgmt_cmd_status (sk, hdev->id,MGMT_OP_MESH_SEND ,MGMT_STATUS_REJECTED ); + expected_len =struct_size (send, adv_data, send->adv_data_len); +if (expected_len != len) +return mgmt_cmd_status (sk, hdev->id,MGMT_OP_MESH_SEND , +MGMT_STATUS_INVALID_PARAMS ); +hci_dev_lock (hdev);memset (&rp,0 ,sizeof (rp));
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 106/311 rds: ib: reject FRMR registration before IB connection is established
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Weiming Shi <[email protected]>
[ Upstream commit a54ecccfae62c5c85259ae5ea5d9c20009519049 ]
rds_ib_get_mr() extracts the rds_ib_connection from conn->c_transport_data and passes it to rds_ib_reg_frmr() for FRWR memory registration. On a fresh outgoing connection, ic is allocated in rds_ib_conn_alloc() with i_cm_id = NULL because the connection worker has not yet called rds_ib_conn_path_connect() to create the rdma_cm_id. When sendmsg() with RDS_CMSG_RDMA_MAP is called on such a connection, the sendmsg path parses the control message before any connection establishment, allowing rds_ib_post_reg_frmr() to dereference ic->i_cm_id->qp and crash the kernel.
The existing guard in rds_ib_reg_frmr() only checks for !ic (added in commit 9e630bcb7701), which does not catch this case since ic is allocated early and is always non-NULL once the connection object exists.
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:rds_ib_post_reg_frmr+0x50e/0x920 Call Trace: rds_ib_post_reg_frmr (net/rds/ib_frmr.c:167) rds_ib_map_frmr (net/rds/ib_frmr.c:252) rds_ib_reg_frmr (net/rds/ib_frmr.c:430) rds_ib_get_mr (net/rds/ib_rdma.c:615) __rds_rdma_map (net/rds/rdma.c:295) rds_cmsg_rdma_map (net/rds/rdma.c:860) rds_sendmsg (net/rds/send.c:1363) ____sys_sendmsg do_syscall_64
Add a check in rds_ib_get_mr() that verifies ic, i_cm_id, and qp are all non-NULL before proceeding with FRMR registration, mirroring the guard already present in rds_ib_post_inv(). Return -ENODEV when the connection is not ready, which the existing error handling in rds_cmsg_send() converts to -EAGAIN for userspace retry and triggers rds_conn_connect_if_down() to start the connection worker.
--- net/rds/ib_rdma.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
net/rds/ib_rdma.c +6 -1
@@ -604,8 +604,13 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,return ibmr; } -if (conn) +if (conn) { ic = conn->c_transport_data; +if (!ic || !ic->i_cm_id || !ic->i_cm_id->qp) { + ret = -ENODEV ; + goto out; + } + }if (!rds_ibdev->mr_8k_pool || !rds_ibdev->mr_1m_pool) { ret = -ENODEV ;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 107/311 bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kuniyuki Iwashima <[email protected]>
[ Upstream commit ad8391d37f334ee73ba91926f8b4e4cf6d31ea04 ]
syzbot reported use-after-free of AF_UNIX socket's sk->sk_socket in sk_psock_verdict_data_ready(). [0]
In unix_stream_sendmsg(), the peer socket's ->sk_data_ready() is called after dropping its unix_state_lock().
Although the sender socket holds the peer's refcount, it does not prevent the peer's sock_orphan(), and the peer's sk_socket might be freed after one RCU grace period.
Let's fetch the peer's sk->sk_socket and sk->sk_socket->ops under RCU in sk_psock_verdict_data_ready().
[0]:
BUG: KASAN: slab-use-after-free in sk_psock_verdict_data_ready+0xec/0x590 net/core/skmsg.c:1278 Read of size 8 at addr ffff8880594da860 by task syz.4.1842/11013 CPU: 1 UID: 0 PID: 11013 Comm: syz.4.1842 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: <TASK> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xba/0x230 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 sk_psock_verdict_data_ready+0xec/0x590 net/core/skmsg.c:1278 unix_stream_sendmsg+0x8a3/0xe80 net/unix/af_unix.c:2482 sock_sendmsg_nosec net/socket.c:721 [inline] __sock_sendmsg net/socket.c:736 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2585 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2639 __sys_sendmsg net/socket.c:2671 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2674 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7facf899c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007facf9827028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007facf8c15fa0 RCX: 00007facf899c819 RDX: 0000000000000000 RSI: 0000200000000500 RDI: 0000000000000004 RBP: 00007facf8a32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007facf8c16038 R14: 00007facf8c15fa0 R15: 00007ffd41b01c78 </TASK> Allocated by task 11013: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4538 [inline] slab_alloc_node mm/slub.c:4866 [inline] kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4885 sock_alloc_inode+0x28/0xc0 net/socket.c:316 alloc_inode+0x6a/0x1b0 fs/inode.c:347 new_inode_pseudo include/linux/fs.h:3003 [inline] sock_alloc net/socket.c:631 [inline] __sock_create+0x12d/0x9d0 net/socket.c:1562 sock_create net/socket.c:1656 [inline] __sys_socketpair+0x1c4/0x560 net/socket.c:1803 __do_sys_socketpair net/socket.c:1856 [inline] __se_sys_socketpair net/socket.c:1853 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1853 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 15: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2685 [inline] slab_free mm/slub.c:6165 [inline] kmem_cache_free+0x187/0x630 mm/slub.c:6295 rcu_do_batch kernel/rcu/tree.c:2617 [inline] rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869 handle_softirqs+0x22a/0x870 kernel/softirq.c:622 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1063 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
--- net/core/skmsg.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
net/core/skmsg.c +8 -5
@@ -1267,17 +1267,20 @@ static int sk_psock_verdict_recv(struct sock *sk, struct sk_buff *skb)static void sk_psock_verdict_data_ready (struct sock *sk) { -struct socket *sock = sk->sk_socket; -const struct proto_ops *ops; +const struct proto_ops *ops =NULL ; +struct socket *sock;int copied;trace_sk_data_ready (sk); -if (unlikely (!sock)) -return ; - ops =READ_ONCE (sock->ops); +rcu_read_lock (); + sock =READ_ONCE (sk->sk_socket); +if (likely (sock)) + ops =READ_ONCE (sock->ops); +rcu_read_unlock ();if (!ops || !ops->read_skb)return ; + copied = ops->read_skb (sk, sk_psock_verdict_recv);if (copied >=0 ) {struct sk_psock *psock;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 108/311 net/sched: sch_netem: fix out-of-bounds access in packet corruption
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yucheng Lu <[email protected]>
[ Upstream commit d64cb81dcbd54927515a7f65e5e24affdc73c14b ]
In netem_enqueue(), the packet corruption logic uses get_random_u32_below(skb_headlen(skb)) to select an index for modifying skb->data. When an AF_PACKET TX_RING sends fully non-linear packets over an IPIP tunnel, skb_headlen(skb) evaluates to 0.
Passing 0 to get_random_u32_below() takes the variable-ceil slow path which returns an unconstrained 32-bit random integer. Using this unconstrained value as an offset into skb->data results in an out-of-bounds memory access.
Fix this by verifying skb_headlen(skb) is non-zero before attempting to corrupt the linear data area. Fully non-linear packets will silently bypass the corruption logic.
--- net/sched/sch_netem.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
net/sched/sch_netem.c +3 -2
@@ -519,8 +519,9 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch, goto finish_segs; } - skb->data[get_random_u32_below (skb_headlen (skb))] ^= -1 <<get_random_u32_below (8 ); +if (skb_headlen (skb)) + skb->data[get_random_u32_below (skb_headlen (skb))] ^= +1 <<get_random_u32_below (8 ); }if (unlikely (q->t_len >= sch->limit)) {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 109/311 net: macb: fix clk handling on PCI glue driver removal
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Fedor Pchelkin <[email protected]>
[ Upstream commit ce8fe5287b87e24e225c342f3b0ec04f0b3680fe ]
platform_device_unregister() may still want to use the registered clks during runtime resume callback.
Note that there is a commit d82d5303c4c5 ("net: macb: fix use after free on rmmod") that addressed the similar problem of clk vs platform device unregistration but just moved the bug to another place.
Save the pointers to clks into local variables for reuse after platform device is unregistered.
BUG: KASAN: use-after-free in clk_prepare+0x5a/0x60 Read of size 8 at addr ffff888104f85e00 by task modprobe/597 CPU: 2 PID: 597 Comm: modprobe Not tainted 6.1.164+ #114 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x8d/0xba print_report+0x17f/0x496 kasan_report+0xd9/0x180 clk_prepare+0x5a/0x60 macb_runtime_resume+0x13d/0x410 [macb] pm_generic_runtime_resume+0x97/0xd0 __rpm_callback+0xc8/0x4d0 rpm_callback+0xf6/0x230 rpm_resume+0xeeb/0x1a70 __pm_runtime_resume+0xb4/0x170 bus_remove_device+0x2e3/0x4b0 device_del+0x5b3/0xdc0 platform_device_del+0x4e/0x280 platform_device_unregister+0x11/0x50 pci_device_remove+0xae/0x210 device_remove+0xcb/0x180 device_release_driver_internal+0x529/0x770 driver_detach+0xd4/0x1a0 bus_remove_driver+0x135/0x260 driver_unregister+0x72/0xb0 pci_unregister_driver+0x26/0x220 __do_sys_delete_module+0x32e/0x550 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 </TASK> Allocated by task 519: kasan_save_stack+0x2c/0x50 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x8e/0x90 __clk_register+0x458/0x2890 clk_hw_register+0x1a/0x60 __clk_hw_register_fixed_rate+0x255/0x410 clk_register_fixed_rate+0x3c/0xa0 macb_probe+0x1d8/0x42e [macb_pci] local_pci_probe+0xd7/0x190 pci_device_probe+0x252/0x600 really_probe+0x255/0x7f0 __driver_probe_device+0x1ee/0x330 driver_probe_device+0x4c/0x1f0 __driver_attach+0x1df/0x4e0 bus_for_each_dev+0x15d/0x1f0 bus_add_driver+0x486/0x5e0 driver_register+0x23a/0x3d0 do_one_initcall+0xfd/0x4d0 do_init_module+0x18b/0x5a0 load_module+0x5663/0x7950 __do_sys_finit_module+0x101/0x180 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Freed by task 597: kasan_save_stack+0x2c/0x50 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x180 __kmem_cache_free+0xbc/0x320 clk_unregister+0x6de/0x8d0 macb_remove+0x73/0xc0 [macb_pci] pci_device_remove+0xae/0x210 device_remove+0xcb/0x180 device_release_driver_internal+0x529/0x770 driver_detach+0xd4/0x1a0 bus_remove_driver+0x135/0x260 driver_unregister+0x72/0xb0 pci_unregister_driver+0x26/0x220 __do_sys_delete_module+0x32e/0x550 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
--- drivers/net/ethernet/cadence/macb_pci.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/net/ethernet/cadence/macb_pci.c +4 -2
@@ -109,10 +109,12 @@ static void macb_remove(struct pci_dev *pdev) {struct platform_device *plat_dev =pci_get_drvdata (pdev);struct macb_platform_data *plat_data =dev_get_platdata (&plat_dev->dev); +struct clk *pclk = plat_data->pclk; +struct clk *hclk = plat_data->hclk; -clk_unregister (plat_data->pclk); -clk_unregister (plat_data->hclk);platform_device_unregister (plat_dev); +clk_unregister (pclk); +clk_unregister (hclk); }static const struct pci_device_id dev_id_table[] = {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 110/311 net: macb: properly unregister fixed rate clocks
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Fedor Pchelkin <[email protected]>
[ Upstream commit f0f367a4f459cc8118aadc43c6bba53c60d93f8d ]
The additional resources allocated with clk_register_fixed_rate() need to be released with clk_unregister_fixed_rate(), otherwise they are lost.
--- drivers/net/ethernet/cadence/macb_pci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
drivers/net/ethernet/cadence/macb_pci.c +4 -4
@@ -96,10 +96,10 @@ static int macb_probe(struct pci_dev *pdev, const struct pci_device_id *id)return 0 ; err_plat_dev_register: -clk_unregister (plat_data.hclk); +clk_unregister_fixed_rate (plat_data.hclk); err_hclk_register: -clk_unregister (plat_data.pclk); +clk_unregister_fixed_rate (plat_data.pclk); err_pclk_register:return err;
@@ -113,8 +113,8 @@ static void macb_remove(struct pci_dev *pdev)struct clk *hclk = plat_data->hclk;platform_device_unregister (plat_dev); -clk_unregister (pclk); -clk_unregister (hclk); +clk_unregister_fixed_rate (pclk); +clk_unregister_fixed_rate (hclk); }static const struct pci_device_id dev_id_table[] = {
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 111/311 net/mlx5: lag: Check for LAG device before creating debugfs
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shay Drory <[email protected]>
[ Upstream commit bf16bca6653679d8a514d6c1c5a2c67065033f14 ]
__mlx5_lag_dev_add_mdev() may return 0 (success) even when an error occurs that is handled gracefully. Consequently, the initialization flow proceeds to call mlx5_ldev_add_debugfs() even when there is no valid LAG context.
mlx5_ldev_add_debugfs() blindly created the debugfs directory and attributes. This exposed interfaces (like the members file) that rely on a valid ldev pointer, leading to potential NULL pointer dereferences if accessed when ldev is NULL.
Add a check to verify that mlx5_lag_dev(dev) returns a valid pointer before attempting to create the debugfs entries.
--- drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c +3 -0
@@ -160,8 +160,11 @@ DEFINE_SHOW_ATTRIBUTE(members);void mlx5_ldev_add_debugfs (struct mlx5_core_dev *dev) { +struct mlx5_lag *ldev =mlx5_lag_dev (dev);struct dentry *dbg; +if (!ldev) +return ; dbg =debugfs_create_dir ("lag" ,mlx5_debugfs_get_dev_root (dev)); dev->priv.dbg.lag_debugfs = dbg;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 112/311 net/mlx5: Avoid "No data available" when FW version queries fail
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Saeed Mahameed <[email protected]>
[ Upstream commit 10dc35f6a443d488f219d1a1e3fb8f8dac422070 ]
Avoid printing the misleading "kernel answers: No data available" devlink output when querying firmware or pending firmware version fails (e.g. MLX5 fw state errors / flash failures).
FW can fail on loading the pending flash image and get its version due to various reasons, examples:
mlxfw: Firmware flash failed: key not applicable, err (7)mlx5_fw_image_pending: can't read pending fw version while fw state is 1
and the resulting:
$ devlink dev info kernel answers: No data available
Instead, just report 0 or 0xfff.. versions in case of failure to indicate a problem, and let other information be shown.
after the fix:
$ devlink dev info
pci/0000:00:06.0:
driver mlx5_core
serial_number xxx...
board.serial_number MT2225300179
versions:
fixed:
fw.psid MT_0000000436
running:
fw.version 22.41.0188
fw 22.41.0188
stored:
fw.version 255.255.65535
fw 255.255.65535--- .../net/ethernet/mellanox/mlx5/core/devlink.c | 4 +- drivers/net/ethernet/mellanox/mlx5/core/fw.c | 53 ++++++++++++------- .../ethernet/mellanox/mlx5/core/mlx5_core.h | 4 +- 3 files changed, 37 insertions(+), 24 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/devlink.c +1 -3
@@ -107,9 +107,7 @@ mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,if (err)return err; - err =mlx5_fw_version_query (dev, &running_fw, &stored_fw); -if (err) -return err; +mlx5_fw_version_query (dev, &running_fw, &stored_fw); snprintf(version_str, sizeof(version_str), "%d.%d.%04d", mlx5_fw_ver_major(running_fw), mlx5_fw_ver_minor(running_fw),
drivers/net/ethernet/mellanox/mlx5/core/fw.c +34 -19
82 lines not on this page · raw message
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +2 -2
@@ -392,8 +392,8 @@ int mlx5_port_max_linkspeed(struct mlx5_core_dev *mdev, u32 *speed);int mlx5_firmware_flash (struct mlx5_core_dev *dev,const struct firmware *fw,struct netlink_ext_ack *extack); -int mlx5_fw_version_query (struct mlx5_core_dev *dev, -u32 *running_ver,u32 *stored_ver); +void mlx5_fw_version_query (struct mlx5_core_dev *dev,u32 *running_ver, +u32 *stored_ver);#ifdef CONFIG_MLX5_CORE_EN int mlx5e_init (void );
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 113/311 net/mlx5: Fix switchdev mode rollback in case of failure
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Saeed Mahameed <[email protected]>
[ Upstream commit 403186400a1a6166efe7031edc549c15fee4723f ]
If for some internal reason switchdev mode fails, we rollback to legacy mode, before this patch, rollback will unregister the uplink netdev and leave it unregistered causing the below kernel bug.
To fix this, we need to avoid netdev unregister by setting the proper rollback flag 'MLX5_PRIV_FLAGS_SWITCH_LEGACY' to indicate legacy mode.
devlink (431) used greatest stack depth: 11048 bytes left
mlx5_core 0000:00:03.0: E-Switch: Disable: mode(LEGACY), nvfs(0), \ necvfs(0), active vports(0) mlx5_core 0000:00:03.0: E-Switch: Supported tc chains and prios offload mlx5_core 0000:00:03.0: Loading uplink representor for vport 65535 mlx5_core 0000:00:03.0: mlx5_cmd_out_err:816:(pid 456): \ QUERY_HCA_CAP(0x100) op_mod(0x0) failed, \ status bad parameter(0x3), syndrome (0x3a3846), err(-22) mlx5_core 0000:00:03.0 enp0s3np0 (unregistered): Unloading uplink \ representor for vport 65535 ------------[ cut here ]------------ kernel BUG at net/core/dev.c:12070! Oops: invalid opcode: 0000 [#1] SMP NOPTI CPU: 2 UID: 0 PID: 456 Comm: devlink Not tainted 6.16.0-rc3+ \ #9 PREEMPT(voluntary) RIP: 0010:unregister_netdevice_many_notify+0x123/0xae0 ... Call Trace: [ 90.923094] unregister_netdevice_queue+0xad/0xf0 [ 90.923323] unregister_netdev+0x1c/0x40 [ 90.923522] mlx5e_vport_rep_unload+0x61/0xc6 [ 90.923736] esw_offloads_enable+0x8e6/0x920 [ 90.923947] mlx5_eswitch_enable_locked+0x349/0x430 [ 90.924182] ? is_mp_supported+0x57/0xb0 [ 90.924376] mlx5_devlink_eswitch_mode_set+0x167/0x350 [ 90.924628] devlink_nl_eswitch_set_doit+0x6f/0xf0 [ 90.924862] genl_family_rcv_msg_doit+0xe8/0x140 [ 90.925088] genl_rcv_msg+0x18b/0x290 [ 90.925269] ? __pfx_devlink_nl_pre_doit+0x10/0x10 [ 90.925506] ? __pfx_devlink_nl_eswitch_set_doit+0x10/0x10 [ 90.925766] ? __pfx_devlink_nl_post_doit+0x10/0x10 [ 90.926001] ? __pfx_genl_rcv_msg+0x10/0x10 [ 90.926206] netlink_rcv_skb+0x52/0x100 [ 90.926393] genl_rcv+0x28/0x40 [ 90.926557] netlink_unicast+0x27d/0x3d0 [ 90.926749] netlink_sendmsg+0x1f7/0x430 [ 90.926942] __sys_sendto+0x213/0x220 [ 90.927127] ? __sys_recvmsg+0x6a/0xd0 [ 90.927312] __x64_sys_sendto+0x24/0x30 [ 90.927504] do_syscall_64+0x50/0x1c0 [ 90.927687] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 90.927929] RIP: 0033:0x7f7d0363e047
--- drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 2 ++ 1 file changed, 2 insertions(+)
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +2 -0
@@ -3761,6 +3761,8 @@ int esw_offloads_enable(struct mlx5_eswitch *esw)return 0 ; err_vports: +/* rollback to legacy, indicates don't unregister the uplink netdev */ + esw->dev->priv.flags |=MLX5_PRIV_FLAGS_SWITCH_LEGACY ;mlx5_esw_offloads_rep_unload (esw,MLX5_VPORT_UPLINK ); err_uplink:esw_offloads_steering_cleanup (esw);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 114/311 bnxt_en: Refactor some basic ring setup and adjustment logic
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Chan <[email protected]>
[ Upstream commit ceee35e5674aa84cf9e504c2a9dae4587511556c ]
Refactor out the basic code that trims the default rings, sets up and adjusts XDP TX rings and CP rings. There is no change in behavior. This is to prepare for the next bug fix patch.
Stable-dep-of: e4bf81dcad0a ("bnxt_en: Don't assume XDP is never enabled in bnxt_init_dflt_ring_mode()")
--- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 53 +++++++++++++------ drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 5 +- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 5 +- 4 files changed, 41 insertions(+), 23 deletions(-)
drivers/net/ethernet/broadcom/bnxt/bnxt.c +37 -16
@@ -12917,6 +12917,21 @@ static int bnxt_tx_nr_rings_per_tc(struct bnxt *bp)return bp->num_tc ? bp->tx_nr_rings / bp->num_tc : bp->tx_nr_rings; } +static void bnxt_set_xdp_tx_rings (struct bnxt *bp) +{ + bp->tx_nr_rings_xdp = bp->tx_nr_rings_per_tc; + bp->tx_nr_rings += bp->tx_nr_rings_xdp; +} + +static void bnxt_adj_tx_rings (struct bnxt *bp) +{ +/* Make adjustments if reserved TX rings are less than requested */ + bp->tx_nr_rings -= bp->tx_nr_rings_xdp; + bp->tx_nr_rings_per_tc =bnxt_tx_nr_rings_per_tc (bp); +if (bp->tx_nr_rings_xdp) +bnxt_set_xdp_tx_rings (bp); +} +static int __bnxt_open_nic (struct bnxt *bp,bool irq_re_init,bool link_re_init) {int rc =0 ;
@@ -12934,13 +12949,7 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)if (rc)return rc; -/* Make adjustments if reserved TX rings are less than requested */ - bp->tx_nr_rings -= bp->tx_nr_rings_xdp; - bp->tx_nr_rings_per_tc =bnxt_tx_nr_rings_per_tc (bp); -if (bp->tx_nr_rings_xdp) { - bp->tx_nr_rings_xdp = bp->tx_nr_rings_per_tc; - bp->tx_nr_rings += bp->tx_nr_rings_xdp; - } +bnxt_adj_tx_rings (bp); rc =bnxt_alloc_mem (bp, irq_re_init);if (rc) {netdev_err (bp->dev,"bnxt_alloc_mem err: %x\n" , rc);
@@ -15377,11 +15386,19 @@ static int bnxt_change_mtu(struct net_device *dev, int new_mtu)return 0 ; } +void bnxt_set_cp_rings (struct bnxt *bp,bool sh) +{ +int tx_cp =bnxt_num_tx_to_cp (bp, bp->tx_nr_rings); + + bp->cp_nr_rings = sh ?max_t (int, tx_cp, bp->rx_nr_rings) : + tx_cp + bp->rx_nr_rings; +} +int bnxt_setup_mq_tc (struct net_device *dev,u8 tc) {struct bnxt *bp =netdev_priv (dev);bool sh = false; -int rc, tx_cp; +int rc;if (tc > bp->max_tc) { netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n",
@@ -15414,9 +15431,7 @@ int bnxt_setup_mq_tc(struct net_device *dev, u8 tc) bp->num_tc =0 ; } bp->tx_nr_rings += bp->tx_nr_rings_xdp; - tx_cp =bnxt_num_tx_to_cp (bp, bp->tx_nr_rings); - bp->cp_nr_rings = sh ?max_t (int, tx_cp, bp->rx_nr_rings) : - tx_cp + bp->rx_nr_rings; +bnxt_set_cp_rings (bp, sh);if (netif_running (bp->dev))return bnxt_open_nic (bp, true, false);
@@ -16421,6 +16436,15 @@ static void bnxt_trim_dflt_sh_rings(struct bnxt *bp) bp->tx_nr_rings =bnxt_tx_nr_rings (bp); } +static void bnxt_adj_dflt_rings (struct bnxt *bp,bool sh) +{ +if (sh) +bnxt_trim_dflt_sh_rings (bp); +else + bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; + bp->tx_nr_rings =bnxt_tx_nr_rings (bp); +} +static int bnxt_set_dflt_rings (struct bnxt *bp,bool sh) {int dflt_rings, max_rx_rings, max_tx_rings, rc;
@@ -16446,11 +16470,8 @@ static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)return rc; bp->rx_nr_rings =min_t (int, dflt_rings, max_rx_rings); bp->tx_nr_rings_per_tc =min_t (int, dflt_rings, max_tx_rings); -if (sh) -bnxt_trim_dflt_sh_rings (bp); -else - bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; - bp->tx_nr_rings =bnxt_tx_nr_rings (bp); + +bnxt_adj_dflt_rings (bp, sh); avail_msix =bnxt_get_max_func_irqs (bp) - bp->cp_nr_rings;if (avail_msix >=BNXT_MIN_ROCE_CP_RINGS ) {
drivers/net/ethernet/broadcom/bnxt/bnxt.h +1 -0
@@ -2971,6 +2971,7 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, int tx_xdp);int bnxt_fw_init_one (struct bnxt *bp);bool bnxt_hwrm_reset_permitted (struct bnxt *bp); +void bnxt_set_cp_rings (struct bnxt *bp,bool sh);int bnxt_setup_mq_tc (struct net_device *dev,u8 tc);struct bnxt_ntuple_filter *bnxt_lookup_ntp_filter_from_idx (struct bnxt *bp,struct bnxt_ntuple_filter *fltr,u32 idx);
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +1 -4
@@ -945,7 +945,6 @@ static int bnxt_set_channels(struct net_device *dev,bool sh = false;int tx_xdp =0 ;int rc =0 ; -int tx_cp;if (channel->other_count)return -EINVAL ;
@@ -1013,9 +1012,7 @@ static int bnxt_set_channels(struct net_device *dev,if (tcs >1 ) bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs + tx_xdp; - tx_cp =bnxt_num_tx_to_cp (bp, bp->tx_nr_rings); - bp->cp_nr_rings = sh ?max_t (int, tx_cp, bp->rx_nr_rings) : - tx_cp + bp->rx_nr_rings; +bnxt_set_cp_rings (bp, sh);/* After changing number of rx channels, update NTUPLE feature. */ netdev_update_features (dev);
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c +2 -3
@@ -384,7 +384,7 @@ int bnxt_xdp_xmit(struct net_device *dev, int num_frames,static int bnxt_xdp_set (struct bnxt *bp,struct bpf_prog *prog) {struct net_device *dev = bp->dev; -int tx_xdp =0 , tx_cp, rc, tc; +int tx_xdp =0 , rc, tc;struct bpf_prog *old;netdev_assert_locked (dev);
@@ -431,8 +431,7 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog) } bp->tx_nr_rings_xdp = tx_xdp; bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc + tx_xdp; - tx_cp =bnxt_num_tx_to_cp (bp, bp->tx_nr_rings); - bp->cp_nr_rings =max_t (int, tx_cp, bp->rx_nr_rings); +bnxt_set_cp_rings (bp, true);bnxt_set_tpa_flags (bp);bnxt_set_ring_params (bp);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 115/311 bnxt_en: Dont assume XDP is never enabled in bnxt_init_dflt_ring_mode()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Chan <[email protected]>
[ Upstream commit e4bf81dcad0a6fff2bbe5331d2c7fb30d45a788c ]
The original code made the assumption that when we set up the initial default ring mode, we must be just loading the driver and XDP cannot be enabled yet. This is not true when the FW goes through a resource or capability change. Resource reservations will be cancelled and reinitialized with XDP already enabled. devlink reload with XDP enabled will also have the same issue. This scenario will cause the ring arithmetic to be all wrong in the bnxt_init_dflt_ring_mode() path causing failure:
bnxt_en 0000:a1:00.0 ens2f0np0: bnxt_setup_int_mode err: ffffffea bnxt_en 0000:a1:00.0 ens2f0np0: bnxt_request_irq err: ffffffea bnxt_en 0000:a1:00.0 ens2f0np0: nic open fail (rc: ffffffea)
Fix it by properly accounting for XDP in the bnxt_init_dflt_ring_mode() path by using the refactored helper functions in the previous patch.
--- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
drivers/net/ethernet/broadcom/bnxt/bnxt.c +9 -4
@@ -16443,6 +16443,10 @@ static void bnxt_adj_dflt_rings(struct bnxt *bp, bool sh)else bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; bp->tx_nr_rings =bnxt_tx_nr_rings (bp); +if (sh &&READ_ONCE (bp->xdp_prog)) { +bnxt_set_xdp_tx_rings (bp); +bnxt_set_cp_rings (bp, true); + } }static int bnxt_set_dflt_rings (struct bnxt *bp,bool sh)
@@ -16484,16 +16488,17 @@ static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh) rc =__bnxt_reserve_rings (bp);if (rc && rc != -ENODEV )netdev_warn (bp->dev,"Unable to reserve tx rings\n" ); - bp->tx_nr_rings_per_tc =bnxt_tx_nr_rings_per_tc (bp); + +bnxt_adj_tx_rings (bp);if (sh) -bnxt_trim_dflt_sh_rings (bp); +bnxt_adj_dflt_rings (bp, true);/* Rings may have been trimmed, re-reserve the trimmed rings. */ if (bnxt_need_reserve_rings (bp)) { rc =__bnxt_reserve_rings (bp);if (rc && rc != -ENODEV )netdev_warn (bp->dev,"2nd rings reservation failed.\n" ); - bp->tx_nr_rings_per_tc =bnxt_tx_nr_rings_per_tc (bp); +bnxt_adj_tx_rings (bp); }if (BNXT_CHIP_TYPE_NITRO_A0 (bp)) { bp->rx_nr_rings++;
@@ -16527,7 +16532,7 @@ static int bnxt_init_dflt_ring_mode(struct bnxt *bp)if (rc) goto init_dflt_ring_err; - bp->tx_nr_rings_per_tc =bnxt_tx_nr_rings_per_tc (bp); +bnxt_adj_tx_rings (bp);bnxt_set_dflt_rfs (bp);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 116/311 bnxt_en: Restore default stat ctxs for ULP when resource is available
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pavan Chebbi <[email protected]>
[ Upstream commit 071dbfa304e85a6b04a593e950d18fa170997288 ]
During resource reservation, if the L2 driver does not have enough MSIX vectors to provide to the RoCE driver, it sets the stat ctxs for ULP also to 0 so that we don't have to reserve it unnecessarily.
However, subsequently the user may reduce L2 rings thereby freeing up some resources that the L2 driver can now earmark for RoCE. In this case, the driver should restore the default ULP stat ctxs to make sure that all RoCE resources are ready for use.
The RoCE driver may fail to initialize in this scenario without this fix.
--- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++ 1 file changed, 2 insertions(+)
drivers/net/ethernet/broadcom/bnxt/bnxt.c +2 -0
@@ -8002,6 +8002,8 @@ static int __bnxt_reserve_rings(struct bnxt *bp) ulp_msix =bnxt_get_avail_msix (bp, bp->ulp_num_msix_want);if (!ulp_msix)bnxt_set_ulp_stat_ctxs (bp,0 ); +else +bnxt_set_dflt_ulp_stat_ctxs (bp);if (ulp_msix > bp->ulp_num_msix_want) ulp_msix = bp->ulp_num_msix_want;
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 117/311 net/x25: Fix potential double free of skb
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Schiller <[email protected]>
[ Upstream commit d10a26aa4d072320530e6968ef945c8c575edf61 ]
When alloc_skb fails in x25_queue_rx_frame it calls kfree_skb(skb) at line 48 and returns 1 (error).
This error propagates back through the call chain:
x25_queue_rx_frame returns 1
|
v
x25_state3_machine receives the return value 1 and takes the else
branch at line 278, setting queued=0 and returning 0
|
v
x25_process_rx_frame returns queued=0
|
vx25_backlog_rcv at line 452 sees queued=0 and calls kfree_skb(skb) again
This would free the same skb twice. Looking at x25_backlog_rcv:
net/x25/x25_in.c:x25_backlog_rcv() {
...
queued = x25_process_rx_frame(sk, skb);
...
if (!queued)
kfree_skb(skb);
}--- net/x25/x25_in.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
net/x25/x25_in.c +2 -3
@@ -44,10 +44,9 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)if (x25->fraglen >0 ) {/* End of fragment */ int len = x25->fraglen + skb->len; -if ((skbn =alloc_skb (len,GFP_ATOMIC )) ==NULL ){ -kfree_skb (skb); + skbn =alloc_skb (len,GFP_ATOMIC ); +if (!skbn)return 1 ; - }skb_queue_tail (&x25->fragment_queue, skb);
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 118/311 net/x25: Fix overflow when accumulating packets
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Schiller <[email protected]>
[ Upstream commit a1822cb524e89b4cd2cf0b82e484a2335496a6d9 ]
Add a check to ensure that x25_sock.fraglen does not overflow.
The fraglen also needs to be resetted when purging fragment_queue in x25_clear_queues().
--- net/x25/x25_in.c | 4 ++++ net/x25/x25_subr.c | 1 + 2 files changed, 5 insertions(+)
net/x25/x25_in.c +4 -0
@@ -34,6 +34,10 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)struct sk_buff *skbo, *skbn = skb;struct x25_sock *x25 =x25_sk (sk); +/* make sure we don't overflow */ +if (x25->fraglen + skb->len >USHRT_MAX ) +return 1 ; +if (more) { x25->fraglen += skb->len;skb_queue_tail (&x25->fragment_queue, skb);
net/x25/x25_subr.c +1 -0
@@ -40,6 +40,7 @@ void x25_clear_queues(struct sock *sk)skb_queue_purge (&x25->interrupt_in_queue);skb_queue_purge (&x25->interrupt_out_queue);skb_queue_purge (&x25->fragment_queue); + x25->fraglen =0 ; }
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 119/311 net/sched: cls_fw: fix NULL pointer dereference on shared blocks
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Xiang Mei <[email protected]>
[ Upstream commit faeea8bbf6e958bf3c00cb08263109661975987c ]
The old-method path in fw_classify() calls tcf_block_q() and dereferences q->handle. Shared blocks leave block->q NULL, causing a NULL deref when an empty cls_fw filter is attached to a shared block and a packet with a nonzero major skb mark is classified.
Reject the configuration in fw_change() when the old method (no TCA_OPTIONS) is used on a shared block, since fw_classify()'s old-method path needs block->q which is NULL for shared blocks.
The fixed null-ptr-deref calling stack:
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] RIP: 0010:fw_classify (net/sched/cls_fw.c:81) Call Trace: tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1764 net/sched/cls_api.c:1860) tc_run (net/core/dev.c:4401) __dev_queue_xmit (net/core/dev.c:4535 net/core/dev.c:4790)
--- net/sched/cls_fw.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
net/sched/cls_fw.c +12 -2
@@ -247,8 +247,18 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,struct nlattr *tb[TCA_FW_MAX +1 ];int err; -if (!opt) -return handle ? -EINVAL :0 ;/* Succeed if it is old method. */ +if (!opt) { +if (handle) +return -EINVAL ; + +if (tcf_block_shared (tp->chain->block)) { +NL_SET_ERR_MSG (extack, +"Must specify mark when attaching fw filter to block" ); +return -EINVAL ; + } + +return 0 ;/* Succeed if it is old method. */ + } err =nla_parse_nested_deprecated (tb,TCA_FW_MAX , opt, fw_policy,NULL );
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 120/311 net/sched: cls_flow: fix NULL pointer dereference on shared blocks
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Xiang Mei <[email protected]>
[ Upstream commit 1a280dd4bd1d616a01d6ffe0de284c907b555504 ]
flow_change() calls tcf_block_q() and dereferences q->handle to derive a default baseclass. Shared blocks leave block->q NULL, causing a NULL deref when a flow filter without a fully qualified baseclass is created on a shared block.
Check tcf_block_shared() before accessing block->q and return -EINVAL for shared blocks. This avoids the null-deref shown below:
=======================================================================
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] RIP: 0010:flow_change (net/sched/cls_flow.c:508) Call Trace: tc_new_tfilter (net/sched/cls_api.c:2432) rtnetlink_rcv_msg (net/core/rtnetlink.c:6980) [...] =======================================================================
--- net/sched/cls_flow.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
net/sched/cls_flow.c +9 -1
@@ -503,8 +503,16 @@ static int flow_change(struct net *net, struct sk_buff *in_skb, }if (TC_H_MAJ (baseclass) ==0 ) { -struct Qdisc *q =tcf_block_q (tp->chain->block); +struct tcf_block *block = tp->chain->block; +struct Qdisc *q; +if (tcf_block_shared (block)) { +NL_SET_ERR_MSG (extack, +"Must specify baseclass when attaching flow filter to block" ); + goto err2; + } + + q =tcf_block_q (block); baseclass =TC_H_MAKE (q->handle, baseclass); }if (TC_H_MIN (baseclass) ==0 )
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 121/311 net: hsr: fix VLAN add unwind on slave errors
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luka Gejak <[email protected]>
[ Upstream commit 2e3514e63bfb0e972b1f19668547a455d0129e88 ]
When vlan_vid_add() fails for a secondary slave, the error path calls vlan_vid_del() on the failing port instead of the peer slave that had already succeeded. This results in asymmetric VLAN state across the HSR pair.
Fix this by switching to a centralized unwind path that removes the VID from any slave device that was already programmed.
--- net/hsr/hsr_device.c | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-)
net/hsr/hsr_device.c +17 -15
@@ -532,8 +532,8 @@ static void hsr_change_rx_flags(struct net_device *dev, int change)static int hsr_ndo_vlan_rx_add_vid (struct net_device *dev,__be16 proto,u16 vid) { -bool is_slave_a_added = false; -bool is_slave_b_added = false; +struct net_device *slave_a_dev =NULL ; +struct net_device *slave_b_dev =NULL ;struct hsr_port *port;struct hsr_priv *hsr;int ret =0 ;
@@ -549,33 +549,35 @@ static int hsr_ndo_vlan_rx_add_vid(struct net_device *dev,switch (port->type) {case HSR_PT_SLAVE_A :if (ret) { -/* clean up Slave-B */ netdev_err (dev,"add vid failed for Slave-A\n" ); -if (is_slave_b_added) -vlan_vid_del (port->dev, proto, vid); -return ret; + goto unwind; } - - is_slave_a_added = true; + slave_a_dev = port->dev;break ; -case HSR_PT_SLAVE_B :if (ret) { -/* clean up Slave-A */ netdev_err (dev,"add vid failed for Slave-B\n" ); -if (is_slave_a_added) -vlan_vid_del (port->dev, proto, vid); -return ret; + goto unwind; } - - is_slave_b_added = true; + slave_b_dev = port->dev;break ;default : +if (ret) + goto unwind;break ; } }return 0 ; + +unwind: +if (slave_a_dev) +vlan_vid_del (slave_a_dev, proto, vid); + +if (slave_b_dev) +vlan_vid_del (slave_b_dev, proto, vid); + +return ret; } static int hsr_ndo_vlan_rx_kill_vid(struct net_device *dev,
Signature · 1 line
2.53.0
Greg Kroah-Hartman
maintainerPATCH 122/311 ipv6: avoid overflows in ip6_datagram_send_ctl()
In reply to Greg Kroah-Hartman6.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
[ Upstream commit 4e453375561fc60820e6b9d8ebeb6b3ee177d42e ]
Yiming Qian reported :
<quote>
I believe I found a locally triggerable kernel bug in the IPv6 sendmsg ancillary-data path that can panic the kernel via skb_under_panic() (local DoS).
The core issue is a mismatch between:
- a 16-bit length accumulator (struct ipv6_txoptions::opt_flen, type __u16) and
- a pointer to the *last* provided destination-options header (opt->dst1opt)
when multiple IPV6_DSTOPTS control messages (cmsgs) are provided.
- include/net/ipv6.h:
- struct ipv6_txoptions::opt_flen is __u16 (wrap possible).
(lines 291-307, especially 298)
- net/ipv6/datagram.c:ip6_datagram_send_ctl():
- Accepts repeated IPV6_DSTOPTS and accumulates into opt_flen
without rejecting duplicates. (lines 909-933)
- net/ipv6/ip6_output.c:__ip6_append_data():
- Uses opt->opt_flen + opt->opt_nflen to compute header
sizes/headroom decisions. (lines 1448-1466, especially 1463-1465)
- net/ipv6/ip6_output.c:__ip6_make_skb():
- Calls ipv6_push_frag_opts() if opt->opt_flen is non-zero.
(lines 1930-1934)
- net/ipv6/exthdrs.c:ipv6_push_frag_opts() / ipv6_push_exthdr():
- Push size comes from ipv6_optlen(opt->dst1opt) (based on the
pointed-to header). (lines 1179-1185 and 1206-1211)
1. opt_flen is a 16-bit accumulator:
- include/net/ipv6.h:298 defines __u16 opt_flen; /* after fragment hdr */.
2. ip6_datagram_send_ctl() accepts *repeated* IPV6_DSTOPTS cmsgs and increments opt_flen each time:
- In net/ipv6/datagram.c:909-933, for IPV6_DSTOPTS:
- It computes len = ((hdr->hdrlen + 1) << 3);
- It checks CAP_NET_RAW using `ns_capable(net->user_ns,
CAP_NET_RAW)`. (line 922)
- Then it does:
- opt->opt_flen += len; (line 927)
- opt->dst1opt = hdr; (line 928)
There is no duplicate rejection here (unlike the legacy IPV6_2292DSTOPTS path which rejects duplicates at net/ipv6/datagram.c:901-904).
If enough large IPV6_DSTOPTS cmsgs are provided, opt_flen wraps while dst1opt still points to a large (2048-byte) destination-options header.
In the attached PoC (poc.c):
- 32 cmsgs with hdrlen=255 => len = (255+1)*8 = 2048
- 1 cmsg with hdrlen=0 => len = 8
- Total increment: 32*2048 + 8 = 65544, so (__u16)opt_flen == 8
- The last cmsg is 2048 bytes, so dst1opt points to a 2048-byte header.
3. The transmit path sizes headers using the wrapped opt_flen:
- In net/ipv6/ip6_output.c:1463-1465:
- `headersize = sizeof(struct ipv6hdr) + (opt ? opt->opt_flen +
opt->opt_nflen : 0) + ...;`
With wrapped opt_flen, headersize/headroom decisions underestimate what will be pushed later.
4. When building the final skb, the actual push length comes from dst1opt and is not limited by wrapped opt_flen:
- In net/ipv6/ip6_output.c:1930-1934:
- if (opt->opt_flen) proto = ipv6_push_frag_opts(skb, opt, proto);
- In net/ipv6/exthdrs.c:1206-1211, ipv6_push_frag_opts() pushes dst1opt via ipv6_push_exthdr().
- In net/ipv6/exthdrs.c:1179-1184, ipv6_push_exthdr() does:
- skb_push(skb, ipv6_optlen(opt));
- memcpy(h, opt, ipv6_optlen(opt));
With insufficient headroom, skb_push() underflows and triggers skb_under_panic() -> BUG():
- net/core/skbuff.c:2669-2675 (skb_push() calls skb_under_panic())
- net/core/skbuff.c:207-214 (skb_panic() ends in BUG())
- The IPV6_DSTOPTS cmsg path requires CAP_NET_RAW in the target netns user namespace (ns_capable(net->user_ns, CAP_NET_RAW)).
- Root (or any task with CAP_NET_RAW) can trigger this without user namespaces.
- An unprivileged uid=1000 user can trigger this if unprivileged user namespaces are enabled and it can create a userns+netns to obtain namespaced CAP_NET_RAW (the attached PoC does this).
- Local denial of service: kernel BUG/panic (system crash).
- Reproducible with a small userspace PoC.
</quote>
This patch does not reject duplicated options, as this might break some user applications.
Instead, it makes sure to adjust opt_flen and opt_nflen to correctly reflect the size of the current option headers, preventing the overflows and the potential for panics.
This applies to IPV6_DSTOPTS, IPV6_HOPOPTS, and IPV6_RTHDR.
Specifically:
When a new IPV6_DSTOPTS is processed, the length of the old opt->dst1opt is subtracted from opt->opt_flen before adding the new length.
When a new IPV6_HOPOPTS is processed, the length of the old opt->dst0opt is subtracted from opt->opt_nflen.
When a new Routing Header (IPV6_RTHDR or IPV6_2292RTHDR) is processed, the length of the old opt->srcrt is subtracted from opt->opt_nflen.
In the special case within IPV6_2292RTHDR handling where dst1opt is moved to dst0opt, the length of the old opt->dst0opt is subtracted from opt->opt_nflen before the new one is added.
--- net/ipv6/datagram.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
net/ipv6/datagram.c +10 -0
@@ -762,6 +762,7 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, {struct in6_pktinfo *src_info;struct cmsghdr *cmsg; +struct ipv6_rt_hdr *orthdr;struct ipv6_rt_hdr *rthdr;struct ipv6_opt_hdr *hdr;struct ipv6_txoptions *opt = ipc6->opt;
@@ -923,9 +924,13 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, goto exit_f; }if (cmsg->cmsg_type ==IPV6_DSTOPTS ) { +if (opt->dst1opt) + opt->opt_flen -=ipv6_optlen (opt->dst1opt); opt->opt_flen += len; opt->dst1opt = hdr; }else { +if (opt->dst0opt) + opt->opt_nflen -=ipv6_optlen (opt->dst0opt); opt->opt_nflen += len; opt->dst0opt = hdr; }
@@ -968,12 +973,17 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, goto exit_f; } + orthdr = opt->srcrt; +if (orthdr) + opt->opt_nflen -= ((orthdr->hdrlen +1 ) <<3 ); opt->opt_nflen += len; opt->srcrt = rthdr;if (cmsg->cmsg_type ==IPV6_2292RTHDR && opt->dst1opt) {int dsthdrlen = ((opt->dst1opt->hdrlen+1 )<<3 ); +if (opt->dst0opt) + opt->opt_nflen -=ipv6_optlen (opt->dst0opt); opt->opt_nflen += dsthdrlen; opt->dst0opt = opt->dst1opt; opt->dst1opt =NULL ;
Signature · 1 line
2.53.0