6.6.104-rc1 review
Greg Kroah-Hartman
maintainercover 6.6.104-rc1 review
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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 Thu, 04 Sep 2025 13:19:14 +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-6.6.104-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-6.6.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <[email protected]>
Linux 6.6.104-rc1
Eric Sandeen <[email protected]>
xfs: do not propagate ENODATA disk errors into xattr code
Imre Deak <[email protected]>
Revert "drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS"
Hamish Martin <[email protected]>
HID: mcp2221: Handle reads greater than 60 bytes
Hamish Martin <[email protected]>
HID: mcp2221: Don't set bus speed on every transfer
Chris Mi <[email protected]>
net/mlx5: SF, Fix add port error handling
Eric Dumazet <[email protected]>
net: rose: fix a typo in rose_clear_routes()
James Jones <[email protected]>
drm/nouveau/disp: Always accept linear modifier
Steve French <[email protected]>
smb3 client: fix return code mapping of remap_file_range
Fabio Porcedda <[email protected]>
net: usb: qmi_wwan: add Telit Cinterion LE910C4-WWX new compositions
Shuhao Fu <[email protected]>
fs/smb: Fix inconsistent refcnt update
Shanker Donthineni <[email protected]>
dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted
Alex Deucher <[email protected]>
Revert "drm/amdgpu: fix incorrect vm flags to map bo"
Minjong Kim <[email protected]>
HID: hid-ntrig: fix unable to handle page fault in ntrig_report_version()
Ping Cheng <[email protected]>
HID: wacom: Add a new Art Pen 2
Matt Coffin <[email protected]>
HID: logitech: Add ids for G PRO 2 LIGHTSPEED
Antheas Kapenekakis <[email protected]>
HID: quirks: add support for Legion Go dual dinput modes
Qasim Ijaz <[email protected]>
HID: multitouch: fix slab out-of-bounds access in mt_report_fixup()
Qasim Ijaz <[email protected]>
HID: asus: fix UAF via HID_CLAIMED_INPUT validation
Borislav Petkov (AMD) <[email protected]>
x86/microcode/AMD: Handle the case of no BIOS microcode
Thijs Raymakers <[email protected]>
KVM: x86: use array_index_nospec with indices that come from guest
Li Nan <[email protected]>
efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
Eric Dumazet <[email protected]>
sctp: initialize more fields in sctp_v6_from_sk()
Takamitsu Iwai <[email protected]>
net: rose: include node references in rose_neigh refcount
Takamitsu Iwai <[email protected]>
net: rose: convert 'use' field to refcount_t
Takamitsu Iwai <[email protected]>
net: rose: split remove and free operations in rose_remove_neigh()
Rohan G Thomas <[email protected]>
net: stmmac: Set CIC bit only for TX queues with COE
Rohan G Thomas <[email protected]>
net: stmmac: xgmac: Correct supported speed modes
Serge Semin <[email protected]>
net: stmmac: Rename phylink_get_caps() callback to update_caps()
Rohan G Thomas <[email protected]>
net: stmmac: xgmac: Do not enable RX FIFO Overflow interrupts
Alexei Lazar <[email protected]>
net/mlx5e: Set local Xoff after FW update
Alexei Lazar <[email protected]>
net/mlx5e: Update and set Xon/Xoff upon port speed set
Alexei Lazar <[email protected]>
net/mlx5e: Update and set Xon/Xoff upon MTU set
Moshe Shemesh <[email protected]>
net/mlx5: Nack sync reset when SFs are present
Jiri Pirko <[email protected]>
net/mlx5: Convert SF port_indices xarray to function_ids xarray
Jiri Pirko <[email protected]>
net/mlx5: Use devlink port pointer to get the pointer of container SF struct
Jiri Pirko <[email protected]>
net/mlx5: Call mlx5_sf_id_erase() once in mlx5_sf_dealloc()
Moshe Shemesh <[email protected]>
net/mlx5: Fix lockdep assertion on sync reset unload event
Moshe Shemesh <[email protected]>
net/mlx5: Add support for sync reset using hot reset
Moshe Shemesh <[email protected]>
net/mlx5: Add device cap for supporting hot reset in sync reset flow
Moshe Shemesh <[email protected]>
net/mlx5: Reload auxiliary drivers on fw_activate
Horatiu Vultur <[email protected]>
phy: mscc: Fix when PTP clock is register and unregister
Yeounsu Moon <[email protected]>
net: dlink: fix multicast stats being counted incorrectly
Dmitry Baryshkov <[email protected]>
dt-bindings: display/msm: qcom,mdp5: drop lut clock
Michal Kubiak <[email protected]>
ice: fix incorrect counter for buffer allocation failures
Maciej Fijalkowski <[email protected]>
ice: stop storing XDP verdict within ice_rx_buf
Maciej Fijalkowski <[email protected]>
ice: gather page_count()'s of each frag right before XDP prog call
Larysa Zaremba <[email protected]>
ice: Introduce ice_xdp_buff
Timur Tabi <[email protected]>
drm/nouveau: remove unused memory target test
Timur Tabi <[email protected]>
drm/nouveau: remove unused increment in gm200_flcn_pio_imem_wr
Kuniyuki Iwashima <[email protected]>
atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control().
Pavel Shpakovskiy <[email protected]>
Bluetooth: hci_sync: fix set_local_name race condition
Luiz Augusto von Dentz <[email protected]>
Bluetooth: hci_event: Detect if HCI_EV_NUM_COMP_PKTS is unbalanced
Ludovico de Nittis <[email protected]>
Bluetooth: hci_event: Mark connection as closed during suspend disconnect
Ludovico de Nittis <[email protected]>
Bluetooth: hci_event: Treat UNKNOWN_CONN_ID on disconnect as success
José Expósito <[email protected]>
HID: input: report battery status changes immediately
José Expósito <[email protected]>
HID: input: rename hidinput_set_battery_charge_status()
Madhavan Srinivasan <[email protected]>
powerpc/kvm: Fix ifdef to remove build warning
Rob Clark <[email protected]>
drm/msm: Defer fd_install in SUBMIT ioctl
Oscar Maes <[email protected]>
net: ipv4: fix regression in local-broadcast routes
Nikolay Kuratov <[email protected]>
vhost/net: Protect ubufs with rcu read lock in vhost_net_ubuf_put()
Trond Myklebust <[email protected]>
NFS: Fix a race when updating an existing write
Christoph Hellwig <[email protected]>
nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
Werner Sembach <[email protected]>
ACPI: EC: Add device to acpi_ec_no_wakeup[] qurik list
Junli Liu <[email protected]>
erofs: fix atomic context detection when !CONFIG_DEBUG_LOCK_ALLOC
Alexey Klimov <[email protected]>
ASoC: codecs: tx-macro: correct tx_macro_component_drv name
Paulo Alcantara <[email protected]>
smb: client: fix race with concurrent opens in rename(2)
Paulo Alcantara <[email protected]>
smb: client: fix race with concurrent opens in unlink(2)
Damien Le Moal <[email protected]>
scsi: core: sysfs: Correct sysfs attributes access rights
Tengda Wu <[email protected]>
ftrace: Fix potential warning in trace_printk_seq during ftrace_dump
Dan Carpenter <[email protected]>
of: dynamic: Fix use after free in of_changeset_add_prop_helper()
Rob Herring <[email protected]>
of: Add a helper to free property struct
Aleksander Jan Bajkowski <[email protected]>
mips: lantiq: xway: sysctrl: rename the etop node
Aleksander Jan Bajkowski <[email protected]>
mips: dts: lantiq: danube: add missing burst length property
Randy Dunlap <[email protected]>
pinctrl: STMFX: add missing HAS_IOMEM dependency
Lizhi Hou <[email protected]>
of: dynamic: Fix memleak when of_pci_add_properties() failed
-------------
Diffstat:
.../devicetree/bindings/display/msm/qcom,mdp5.yaml | 1 - Makefile | 4 +- arch/mips/boot/dts/lantiq/danube_easy50712.dts | 5 +- arch/mips/lantiq/xway/sysctrl.c | 10 +- arch/powerpc/kernel/kvm.c | 8 +- arch/x86/kernel/cpu/microcode/amd.c | 22 ++- arch/x86/kvm/lapic.c | 2 + arch/x86/kvm/x86.c | 7 +- drivers/acpi/ec.c | 6 + drivers/atm/atmtcp.c | 17 +- drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 4 +- drivers/gpu/drm/display/drm_dp_helper.c | 2 +- drivers/gpu/drm/msm/msm_gem_submit.c | 14 +- drivers/gpu/drm/nouveau/dispnv50/wndw.c | 4 + drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c | 15 +- drivers/hid/hid-asus.c | 8 +- drivers/hid/hid-ids.h | 3 + drivers/hid/hid-input-test.c | 10 +- drivers/hid/hid-input.c | 51 +++--- drivers/hid/hid-logitech-dj.c | 4 + drivers/hid/hid-logitech-hidpp.c | 2 + drivers/hid/hid-mcp2221.c | 71 +++++--- drivers/hid/hid-multitouch.c | 8 + drivers/hid/hid-ntrig.c | 3 + drivers/hid/hid-quirks.c | 2 + drivers/hid/wacom_wac.c | 1 + drivers/net/ethernet/dlink/dl2k.c | 2 +- drivers/net/ethernet/intel/ice/ice_txrx.c | 94 +++++++--- drivers/net/ethernet/intel/ice/ice_txrx.h | 19 +- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 53 ++---- drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 2 +- .../ethernet/mellanox/mlx5/core/en/port_buffer.c | 3 +- .../ethernet/mellanox/mlx5/core/en/port_buffer.h | 12 ++ drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 19 +- drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 200 ++++++++++++++------- drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h | 1 + drivers/net/ethernet/mellanox/mlx5/core/main.c | 3 + .../net/ethernet/mellanox/mlx5/core/sf/devlink.c | 87 ++++----- drivers/net/ethernet/mellanox/mlx5/core/sf/sf.h | 6 + drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 8 +- .../net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 13 +- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 9 +- drivers/net/ethernet/stmicro/stmmac/hwif.h | 8 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 +- drivers/net/phy/mscc/mscc.h | 4 + drivers/net/phy/mscc/mscc_main.c | 4 +- drivers/net/phy/mscc/mscc_ptp.c | 34 ++-- drivers/net/usb/qmi_wwan.c | 3 + drivers/of/dynamic.c | 29 +-- drivers/of/of_private.h | 1 + drivers/of/overlay.c | 11 +- drivers/of/unittest.c | 12 +- drivers/pinctrl/Kconfig | 1 + drivers/scsi/scsi_sysfs.c | 4 +- drivers/vhost/net.c | 9 +- fs/efivarfs/super.c | 4 + fs/erofs/zdata.c | 13 +- fs/nfs/pagelist.c | 86 +-------- fs/nfs/write.c | 148 +++++++++------ fs/smb/client/cifsfs.c | 14 ++ fs/smb/client/inode.c | 34 +++- fs/smb/client/smb2inode.c | 7 +- fs/xfs/libxfs/xfs_attr_remote.c | 7 + fs/xfs/libxfs/xfs_da_btree.c | 6 + include/linux/atmdev.h | 1 + include/linux/mlx5/mlx5_ifc.h | 11 +- include/linux/nfs_page.h | 2 +- include/net/bluetooth/hci_sync.h | 2 +- include/net/rose.h | 18 +- kernel/dma/pool.c | 4 +- kernel/trace/trace.c | 4 +- net/atm/common.c | 15 +- net/bluetooth/hci_event.c | 20 ++- net/bluetooth/hci_sync.c | 6 +- net/bluetooth/mgmt.c | 5 +- net/ipv4/route.c | 10 +- net/rose/af_rose.c | 13 +- net/rose/rose_in.c | 12 +- net/rose/rose_route.c | 62 ++++--- net/rose/rose_timer.c | 2 +- net/sctp/ipv6.c | 2 + sound/soc/codecs/lpass-tx-macro.c | 2 +- 82 files changed, 897 insertions(+), 560 deletions(-)
Greg Kroah-Hartman
maintainerPATCH 1/75 of: dynamic: Fix memleak when of_pci_add_properties() failed
6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lizhi Hou <[email protected]>
[ Upstream commit c81f6ce16785cc07ae81f53deb07b662ed0bb3a5 ]
When of_pci_add_properties() failed, of_changeset_destroy() is called to free the changeset. And of_changeset_destroy() puts device tree node in each entry but does not free property in the entry. This leads to memory leak in the failure case.
In of_changeset_add_prop_helper(), add the property to the device tree node deadprops list. Thus, the property will also be freed along with device tree node.
--- drivers/of/dynamic.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/of/dynamic.c +3 -0
@@ -939,6 +939,9 @@ static int of_changeset_add_prop_helper(struct of_changeset *ocs,kfree (new_pp); } + new_pp->next = np->deadprops; + np->deadprops = new_pp; +return ret; }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 2/75 pinctrl: STMFX: add missing HAS_IOMEM dependency
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Randy Dunlap <[email protected]>
[ Upstream commit a12946bef0407cf2db0899c83d42c47c00af3fbc ]
When building on ARCH=um (which does not set HAS_IOMEM), kconfig reports an unmet dependency caused by PINCTRL_STMFX. It selects MFD_STMFX, which depends on HAS_IOMEM. To stop this warning, PINCTRL_STMFX should also depend on HAS_IOMEM.
kconfig warning:
WARNING: unmet direct dependencies detected for MFD_STMFX
Depends on [n]: HAS_IOMEM [=n] && I2C [=y] && OF [=y] Selected by [y]:
- PINCTRL_STMFX [=y] && PINCTRL [=y] && I2C [=y] && OF_GPIO [=y]
--- drivers/pinctrl/Kconfig | 1 + 1 file changed, 1 insertion(+)
drivers/pinctrl/Kconfig +1 -0
@@ -438,6 +438,7 @@ config PINCTRL_STMFX tristate "STMicroelectronics STMFX GPIO expander pinctrl driver" depends on I2C depends on OF_GPIO + depends on HAS_IOMEM select GENERIC_PINCONF select GPIOLIB_IRQCHIP select MFD_STMFX
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 3/75 mips: dts: lantiq: danube: add missing burst length property
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Aleksander Jan Bajkowski <[email protected]>
[ Upstream commit 7b28232921782aa38048249132899c337405eaa8 ]
The upstream dts lacks the lantiq,{rx/tx}-burst-length property. Other
issues were also fixed:arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'interrupt-names' is a required property
from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'lantiq,tx-burst-length' is a required property
from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'lantiq,rx-burst-length' is a required property
from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#
--- arch/mips/boot/dts/lantiq/danube_easy50712.dts | 3 +++ 1 file changed, 3 insertions(+)
arch/mips/boot/dts/lantiq/danube_easy50712.dts +3 -0
@@ -87,8 +87,11 @@ etop@e180000 { reg = <0xe180000 0x40000>; interrupt-parent = <&icu0>; interrupts = <73 78>; + interrupt-names = "tx", "rx"; phy-mode = "rmii"; mac-address = [ 00 11 22 33 44 55 ]; + lantiq,rx-burst-length = <4>; + lantiq,tx-burst-length = <4>; }; stp0: stp@e100bb0 {
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 4/75 mips: lantiq: xway: sysctrl: rename the etop node
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Aleksander Jan Bajkowski <[email protected]>
[ Upstream commit 8c431ea8f3f795c4b9cfa57a85bc4166b9cce0ac ]
Bindig requires a node name matching ‘^ethernet@[0-9a-f]+$’. This patch changes the clock name from “etop” to “ethernet”.
This fixes the following warning:arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): $nodename:0: 'etop@e180000' does not match '^ethernet@[0-9a-f]+$'
from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#
--- arch/mips/boot/dts/lantiq/danube_easy50712.dts | 2 +- arch/mips/lantiq/xway/sysctrl.c | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-)
arch/mips/boot/dts/lantiq/danube_easy50712.dts +1 -1
@@ -82,7 +82,7 @@ conf_out { }; }; - etop@e180000 { + ethernet@e180000 { compatible = "lantiq,etop-xway"; reg = <0xe180000 0x40000>; interrupt-parent = <&icu0>;
arch/mips/lantiq/xway/sysctrl.c +5 -5
@@ -478,7 +478,7 @@ void __init ltq_soc_init(void) ifccr =CGU_IFCCR_VR9 ; pcicr =CGU_PCICR_VR9 ; }else { -clkdev_add_pmu ("1e180000.etop" ,NULL ,1 ,0 ,PMU_PPE ); +clkdev_add_pmu ("1e180000.ethernet" ,NULL ,1 ,0 ,PMU_PPE ); }if (!of_machine_is_compatible ("lantiq,ase" ))
@@ -512,9 +512,9 @@ void __init ltq_soc_init(void) CLOCK_133M, CLOCK_133M);clkdev_add_pmu ("1e101000.usb" ,"otg" ,1 ,0 ,PMU_USB0 );clkdev_add_pmu ("1f203018.usb2-phy" ,"phy" ,1 ,0 ,PMU_USB0_P ); -clkdev_add_pmu ("1e180000.etop" ,"ppe" ,1 ,0 ,PMU_PPE ); -clkdev_add_cgu ("1e180000.etop" ,"ephycgu" ,CGU_EPHY ); -clkdev_add_pmu ("1e180000.etop" ,"ephy" ,1 ,0 ,PMU_EPHY ); +clkdev_add_pmu ("1e180000.ethernet" ,"ppe" ,1 ,0 ,PMU_PPE ); +clkdev_add_cgu ("1e180000.ethernet" ,"ephycgu" ,CGU_EPHY ); +clkdev_add_pmu ("1e180000.ethernet" ,"ephy" ,1 ,0 ,PMU_EPHY );clkdev_add_pmu ("1e103000.sdio" ,NULL ,1 ,0 ,PMU_ASE_SDIO );clkdev_add_pmu ("1e116000.mei" ,"dfe" ,1 ,0 ,PMU_DFE ); }else if (of_machine_is_compatible ("lantiq,grx390" )) {
@@ -573,7 +573,7 @@ void __init ltq_soc_init(void)clkdev_add_pmu ("1e101000.usb" ,"otg" ,1 ,0 ,PMU_USB0 |PMU_AHBM );clkdev_add_pmu ("1f203034.usb2-phy" ,"phy" ,1 ,0 ,PMU_USB1_P );clkdev_add_pmu ("1e106000.usb" ,"otg" ,1 ,0 ,PMU_USB1 |PMU_AHBM ); -clkdev_add_pmu ("1e180000.etop" ,"switch" ,1 ,0 ,PMU_SWITCH ); +clkdev_add_pmu ("1e180000.ethernet" ,"switch" ,1 ,0 ,PMU_SWITCH );clkdev_add_pmu ("1e103000.sdio" ,NULL ,1 ,0 ,PMU_SDIO );clkdev_add_pmu ("1e103100.deu" ,NULL ,1 ,0 ,PMU_DEU );clkdev_add_pmu ("1e116000.mei" ,"dfe" ,1 ,0 ,PMU_DFE );
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 5/75 of: Add a helper to free property struct
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rob Herring <[email protected]>
[ Upstream commit 1c5e3d9bf33b811e1c6dd9081b322004acc4a1fd ]
Freeing a property struct is 3 kfree()'s which is duplicated in multiple spots. Add a helper, __of_prop_free(), and replace all the open coded cases in the DT code.
Stable-dep-of: 80af3745ca46 ("of: dynamic: Fix use after free in of_changeset_add_prop_helper()")
--- drivers/of/dynamic.c | 26 ++++++++++++-------------- drivers/of/of_private.h | 1 + drivers/of/overlay.c | 11 +++-------- drivers/of/unittest.c | 12 +++--------- 4 files changed, 19 insertions(+), 31 deletions(-)
drivers/of/dynamic.c +12 -14
@@ -306,15 +306,20 @@ int of_detach_node(struct device_node *np) }EXPORT_SYMBOL_GPL (of_detach_node); +void __of_prop_free (struct property *prop) +{ +kfree (prop->name); +kfree (prop->value); +kfree (prop); +} +static void property_list_free (struct property *prop_list) {struct property *prop, *next;for (prop = prop_list; prop !=NULL ; prop = next) { next = prop->next; -kfree (prop->name); -kfree (prop->value); -kfree (prop); +__of_prop_free (prop); } }
@@ -427,9 +432,7 @@ struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags)return new; err_free: -kfree (new->name); -kfree (new->value); -kfree (new); +__of_prop_free (new);return NULL ; }
@@ -471,9 +474,7 @@ struct device_node *__of_node_dup(const struct device_node *np,if (!new_pp) goto err_prop;if (__of_add_property (node, new_pp)) { -kfree (new_pp->name); -kfree (new_pp->value); -kfree (new_pp); +__of_prop_free (new_pp); goto err_prop; } }
@@ -933,11 +934,8 @@ static int of_changeset_add_prop_helper(struct of_changeset *ocs,return -ENOMEM ; ret =of_changeset_add_property (ocs, np, new_pp); -if (ret) { -kfree (new_pp->name); -kfree (new_pp->value); -kfree (new_pp); - } +if (ret) +__of_prop_free (new_pp); new_pp->next = np->deadprops; np->deadprops = new_pp;
drivers/of/of_private.h +1 -0
@@ -123,6 +123,7 @@ extern void *__unflatten_device_tree(const void *blob,* own the devtree lock or work on detached trees only. */ struct property *__of_prop_dup (const struct property *prop,gfp_t allocflags); +void __of_prop_free (struct property *prop);struct device_node *__of_node_dup (const struct device_node *np,const char *full_name);
drivers/of/overlay.c +3 -8
@@ -262,9 +262,7 @@ static struct property *dup_and_fixup_symbol_prop(return new_prop; err_free_new_prop: -kfree (new_prop->name); -kfree (new_prop->value); -kfree (new_prop); +__of_prop_free (new_prop); err_free_target_path:kfree (target_path);
@@ -361,11 +359,8 @@ static int add_changeset_property(struct overlay_changeset *ovcs,pr_err ("WARNING: memory leak will occur if overlay removed, property: %pOF/%s\n" , target->np, new_prop->name); -if (ret) { -kfree (new_prop->name); -kfree (new_prop->value); -kfree (new_prop); - } +if (ret) +__of_prop_free (new_prop);return ret; }
drivers/of/unittest.c +3 -9
@@ -800,15 +800,11 @@ static void __init of_unittest_property_copy(void) new =__of_prop_dup (&p1,GFP_KERNEL );unittest (new &&propcmp (&p1, new),"empty property didn't copy correctly\n" ); -kfree (new->value); -kfree (new->name); -kfree (new); +__of_prop_free (new); new =__of_prop_dup (&p2,GFP_KERNEL );unittest (new &&propcmp (&p2, new),"non-empty property didn't copy correctly\n" ); -kfree (new->value); -kfree (new->name); -kfree (new); +__of_prop_free (new);#endif }
@@ -3665,9 +3661,7 @@ static __init void of_unittest_overlay_high_level(void) goto err_unlock; }if (__of_add_property (of_symbols, new_prop)) { -kfree (new_prop->name); -kfree (new_prop->value); -kfree (new_prop); +__of_prop_free (new_prop);/* "name" auto-generated by unflatten */ if (!strcmp (prop->name,"name" ))continue ;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 6/75 of: dynamic: Fix use after free in of_changeset_add_prop_helper()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <[email protected]>
[ Upstream commit 80af3745ca465c6c47e833c1902004a7fa944f37 ]
If the of_changeset_add_property() function call fails, then this code frees "new_pp" and then dereference it on the next line. Return the error code directly instead.
--- drivers/of/dynamic.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/of/dynamic.c +4 -2
@@ -934,13 +934,15 @@ static int of_changeset_add_prop_helper(struct of_changeset *ocs,return -ENOMEM ; ret =of_changeset_add_property (ocs, np, new_pp); -if (ret) +if (ret) {__of_prop_free (new_pp); +return ret; + } new_pp->next = np->deadprops; np->deadprops = new_pp; -return ret; +return 0 ; }/**
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 7/75 ftrace: Fix potential warning in trace_printk_seq during ftrace_dump
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tengda Wu <[email protected]>
[ Upstream commit 4013aef2ced9b756a410f50d12df9ebe6a883e4a ]
When calling ftrace_dump_one() concurrently with reading trace_pipe, a WARN_ON_ONCE() in trace_printk_seq() can be triggered due to a race condition.
The issue occurs because:
CPU0 (ftrace_dump) CPU1 (reader)
echo z > /proc/sysrq-trigger
!trace_empty(&iter)trace_iterator_reset(&iter) <- len = size = 0
cat /sys/kernel/tracing/trace_pipetrace_find_next_entry_inc(&iter)
__find_next_entry
ring_buffer_empty_cpu <- all empty
return NULL
trace_printk_seq(&iter.seq)
WARN_ON_ONCE(s->seq.len >= s->seq.size)
In the context between trace_empty() and trace_find_next_entry_inc() during ftrace_dump, the ring buffer data was consumed by other readers. This caused trace_find_next_entry_inc to return NULL, failing to populate iter.seq. At this point, due to the prior trace_iterator_reset, both iter.seq.len and iter.seq.size were set to 0. Since they are equal, the WARN_ON_ONCE condition is triggered.
Move the trace_printk_seq() into the if block that checks to make sure the return value of trace_find_next_entry_inc() is non-NULL in ftrace_dump_one(), ensuring the 'iter.seq' is properly populated before subsequent operations.
--- kernel/trace/trace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
kernel/trace/trace.c +2 -2
@@ -10162,10 +10162,10 @@ void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) ret =print_trace_line (&iter);if (ret !=TRACE_TYPE_NO_CONSUME )trace_consume (&iter); + +trace_printk_seq (&iter.seq); }touch_nmi_watchdog (); - -trace_printk_seq (&iter.seq); }if (!cnt)
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 8/75 scsi: core: sysfs: Correct sysfs attributes access rights
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Damien Le Moal <[email protected]>
[ Upstream commit a2f54ff15c3bdc0132e20aae041607e2320dbd73 ]
The SCSI sysfs attributes "supported_mode" and "active_mode" do not define a store method and thus cannot be modified. Correct the DEVICE_ATTR() call for these two attributes to not include S_IWUSR to allow write access as they are read-only.
--- drivers/scsi/scsi_sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/scsi/scsi_sysfs.c +2 -2
@@ -265,7 +265,7 @@ show_shost_supported_mode(struct device *dev, struct device_attribute *attr,return show_shost_mode (supported_mode, buf); } -static DEVICE_ATTR(supported_mode, S_IRUGO | S_IWUSR, show_shost_supported_mode, NULL); +static DEVICE_ATTR(supported_mode, S_IRUGO, show_shost_supported_mode, NULL); static ssize_t show_shost_active_mode(struct device *dev,
@@ -279,7 +279,7 @@ show_shost_active_mode(struct device *dev,return show_shost_mode (shost->active_mode, buf); } -static DEVICE_ATTR(active_mode, S_IRUGO | S_IWUSR, show_shost_active_mode, NULL); +static DEVICE_ATTR(active_mode, S_IRUGO, show_shost_active_mode, NULL);static int check_reset_type (const char *str) {
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 9/75 smb: client: fix race with concurrent opens in unlink(2)
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara <[email protected]>
[ Upstream commit 0af1561b2d60bab2a2b00720a5c7b292ecc549ec ]
According to some logs reported by customers, CIFS client might end up reporting unlinked files as existing in stat(2) due to concurrent opens racing with unlink(2).
Besides sending the removal request to the server, the unlink process could involve closing any deferred close as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens.
Fix this by unhashing the dentry in cifs_unlink() to prevent any subsequent opens. Any open attempts, while we're still unlinking, will block on parent's i_rwsem.
--- fs/smb/client/inode.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
fs/smb/client/inode.c +14 -2
@@ -1856,15 +1856,24 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)struct cifs_sb_info *cifs_sb =CIFS_SB (sb);struct tcon_link *tlink;struct cifs_tcon *tcon; +__u32 dosattr =0 , origattr =0 ;struct TCP_Server_Info *server;struct iattr *attrs =NULL ; -__u32 dosattr =0 , origattr =0 ; +bool rehash = false;cifs_dbg (FYI ,"cifs_unlink, dir=0x%p, dentry=0x%p\n" , dir, dentry);if (unlikely (cifs_forced_shutdown (cifs_sb)))return -EIO ; +/* Unhash dentry in advance to prevent any concurrent opens */ +spin_lock (&dentry->d_lock); +if (!d_unhashed (dentry)) { +__d_drop (dentry); + rehash = true; + } +spin_unlock (&dentry->d_lock); + tlink =cifs_sb_tlink (cifs_sb);if (IS_ERR (tlink))return PTR_ERR (tlink);
@@ -1915,7 +1924,8 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)cifs_drop_nlink (inode); } }else if (rc == -ENOENT ) { -d_drop (dentry); +if (simple_positive (dentry)) +d_delete (dentry); }else if (rc == -EBUSY ) {if (server->ops->rename_pending_delete) { rc = server->ops->rename_pending_delete(full_path,
@@ -1968,6 +1978,8 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)kfree (attrs);free_xid (xid);cifs_put_tlink (tlink); +if (rehash) +d_rehash (dentry);return rc; }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 10/75 smb: client: fix race with concurrent opens in rename(2)
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara <[email protected]>
[ Upstream commit d84291fc7453df7881a970716f8256273aca5747 ]
Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding I/O to complete as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens on the target file.
Fix this by unhashing the dentry in advance to prevent any concurrent opens on the target.
--- fs/smb/client/inode.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
fs/smb/client/inode.c +18 -0
@@ -2379,6 +2379,7 @@ cifs_rename2(struct mnt_idmap *idmap, struct inode *source_dir,struct cifs_sb_info *cifs_sb;struct tcon_link *tlink;struct cifs_tcon *tcon; +bool rehash = false;unsigned int xid;int rc, tmprc;int retry_count =0 ;
@@ -2394,6 +2395,17 @@ cifs_rename2(struct mnt_idmap *idmap, struct inode *source_dir,if (unlikely (cifs_forced_shutdown (cifs_sb)))return -EIO ; +/* +* Prevent any concurrent opens on the target by unhashing the dentry. +* VFS already unhashes the target when renaming directories. +*/ +if (d_is_positive (target_dentry) && !d_is_dir (target_dentry)) { +if (!d_unhashed (target_dentry)) { +d_drop (target_dentry); + rehash = true; + } + } + tlink =cifs_sb_tlink (cifs_sb);if (IS_ERR (tlink))return PTR_ERR (tlink);
@@ -2433,6 +2445,8 @@ cifs_rename2(struct mnt_idmap *idmap, struct inode *source_dir, } } +if (!rc) + rehash = false;/* * No-replace is the natural behavior for CIFS, so skip unlink hacks. */
@@ -2491,12 +2505,16 @@ cifs_rename2(struct mnt_idmap *idmap, struct inode *source_dir, goto cifs_rename_exit; rc =cifs_do_rename (xid, source_dentry, from_name, target_dentry, to_name); +if (!rc) + rehash = false; }/* force revalidate to go get info when needed */ CIFS_I (source_dir)->time =CIFS_I (target_dir)->time =0 ; cifs_rename_exit: +if (rehash) +d_rehash (target_dentry);kfree (info_buf_source);free_dentry_path (page2);free_dentry_path (page1);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 11/75 ASoC: codecs: tx-macro: correct tx_macro_component_drv name
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexey Klimov <[email protected]>
[ Upstream commit 43e0da37d5cfb23eec6aeee9422f84d86621ce2b ]
We already have a component driver named "RX-MACRO", which is lpass-rx-macro.c. The tx macro component driver's name should be "TX-MACRO" accordingly. Fix it.
--- sound/soc/codecs/lpass-tx-macro.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
sound/soc/codecs/lpass-tx-macro.c +1 -1
@@ -1940,7 +1940,7 @@ static int tx_macro_register_mclk_output(struct tx_macro *tx) }static const struct snd_soc_component_driver tx_macro_component_drv = { - .name ="RX-MACRO" , + .name ="TX-MACRO" , .probe = tx_macro_component_probe, .controls = tx_macro_snd_controls, .num_controls =ARRAY_SIZE (tx_macro_snd_controls),
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 12/75 erofs: fix atomic context detection when !CONFIG_DEBUG_LOCK_ALLOC
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Junli Liu <[email protected]>
[ Upstream commit c99fab6e80b76422741d34aafc2f930a482afbdd ]
Since EROFS handles decompression in non-atomic contexts due to uncontrollable decompression latencies and vmap() usage, it tries to detect atomic contexts and only kicks off a kworker on demand in order to reduce unnecessary scheduling overhead.
However, the current approach is insufficient and can lead to sleeping function calls in invalid contexts, causing kernel warnings and potential system instability. See the stacktrace [1] and previous discussion [2].
The current implementation only checks rcu_read_lock_any_held(), which behaves inconsistently across different kernel configurations:
- When CONFIG_DEBUG_LOCK_ALLOC is enabled: correctly detects RCU critical sections by checking rcu_lock_map
- When CONFIG_DEBUG_LOCK_ALLOC is disabled: compiles to "!preemptible()", which only checks preempt_count and misses RCU critical sections
This patch introduces z_erofs_in_atomic() to provide comprehensive atomic context detection:
1. Check RCU preemption depth when CONFIG_PREEMPTION is enabled, as RCU critical sections may not affect preempt_count but still require atomic handling
2. Always use async processing when CONFIG_PREEMPT_COUNT is disabled, as preemption state cannot be reliably determined
3. Fall back to standard preemptible() check for remaining cases
The function replaces the previous complex condition check and ensures that z_erofs always uses (kthread_)work in atomic contexts to minimize scheduling overhead and prevent sleeping in invalid contexts.
[1] Problem stacktrace
[ 61.266692] BUG: sleeping function called from invalid context at kernel/locking/rtmutex_api.c:510 [ 61.266702] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 107, name: irq/54-ufshcd [ 61.266704] preempt_count: 0, expected: 0 [ 61.266705] RCU nest depth: 2, expected: 0 [ 61.266710] CPU: 0 UID: 0 PID: 107 Comm: irq/54-ufshcd Tainted: G W O 6.12.17 #1 [ 61.266714] Tainted: [W]=WARN, [O]=OOT_MODULE [ 61.266715] Hardware name: schumacher (DT) [ 61.266717] Call trace: [ 61.266718] dump_backtrace+0x9c/0x100 [ 61.266727] show_stack+0x20/0x38 [ 61.266728] dump_stack_lvl+0x78/0x90 [ 61.266734] dump_stack+0x18/0x28 [ 61.266736] __might_resched+0x11c/0x180 [ 61.266743] __might_sleep+0x64/0xc8 [ 61.266745] mutex_lock+0x2c/0xc0 [ 61.266748] z_erofs_decompress_queue+0xe8/0x978 [ 61.266753] z_erofs_decompress_kickoff+0xa8/0x190 [ 61.266756] z_erofs_endio+0x168/0x288 [ 61.266758] bio_endio+0x160/0x218 [ 61.266762] blk_update_request+0x244/0x458 [ 61.266766] scsi_end_request+0x38/0x278 [ 61.266770] scsi_io_completion+0x4c/0x600 [ 61.266772] scsi_finish_command+0xc8/0xe8 [ 61.266775] scsi_complete+0x88/0x148 [ 61.266777] blk_mq_complete_request+0x3c/0x58 [ 61.266780] scsi_done_internal+0xcc/0x158 [ 61.266782] scsi_done+0x1c/0x30 [ 61.266783] ufshcd_compl_one_cqe+0x12c/0x438 [ 61.266786] __ufshcd_transfer_req_compl+0x2c/0x78 [ 61.266788] ufshcd_poll+0xf4/0x210 [ 61.266789] ufshcd_transfer_req_compl+0x50/0x88 [ 61.266791] ufshcd_intr+0x21c/0x7c8 [ 61.266792] irq_forced_thread_fn+0x44/0xd8 [ 61.266796] irq_thread+0x1a4/0x358 [ 61.266799] kthread+0x12c/0x138 [ 61.266802] ret_from_fork+0x10/0x20
[2] https://lore.kernel.org/r/58b661d0-0ebb-4b45-a10d-c5927fb791cd@paulmck-laptop
--- fs/erofs/zdata.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
fs/erofs/zdata.c +11 -2
@@ -1401,6 +1401,16 @@ static void z_erofs_decompressqueue_kthread_work(struct kthread_work *work) }#endif +/* Use (kthread_)work in atomic contexts to minimize scheduling overhead */ +static inline bool z_erofs_in_atomic (void ) +{ +if (IS_ENABLED (CONFIG_PREEMPTION ) &&rcu_preempt_depth ()) +return true; +if (!IS_ENABLED (CONFIG_PREEMPT_COUNT )) +return true; +return !preemptible (); +} +static void z_erofs_decompress_kickoff (struct z_erofs_decompressqueue *io,int bios) {
@@ -1415,8 +1425,7 @@ static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,if (atomic_add_return (bios, &io->pending_bios))return ; -/* Use (kthread_)work and sync decompression for atomic contexts only */ -if (!in_task () ||irqs_disabled () ||rcu_read_lock_any_held ()) { +if (z_erofs_in_atomic ()) {#ifdef CONFIG_EROFS_FS_PCPU_KTHREAD struct kthread_worker *worker;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 13/75 ACPI: EC: Add device to acpi_ec_no_wakeup[] qurik list
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Werner Sembach <[email protected]>
commit 9cd51eefae3c871440b93c03716c5398f41bdf78 upstream.
Add the TUXEDO InfinityBook Pro AMD Gen9 to the acpi_ec_no_wakeup[] quirk list to prevent spurious wakeups.
--- drivers/acpi/ec.c | 6 ++++++ 1 file changed, 6 insertions(+)
drivers/acpi/ec.c +6 -0
@@ -2329,6 +2329,12 @@ static const struct dmi_system_id acpi_e DMI_MATCH(DMI_PRODUCT_NAME, "83Q3"), } }, + { +// TUXEDO InfinityBook Pro AMD Gen9 + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "GXxHRXx"), + }, + }, { }, };
Greg Kroah-Hartman
maintainerPATCH 14/75 nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christoph Hellwig <[email protected]>
commit 25edbcac6e32eab345e470d56ca9974a577b878b upstream.
Fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests to prepare for future changes to this code, and move the helpers to write.c as well.
--- fs/nfs/pagelist.c | 77 ----------------------------------------------- fs/nfs/write.c | 75 ++++++++++++++++++++++++++++++++++++++++++--- include/linux/nfs_page.h | 1 3 files changed, 69 insertions(+), 84 deletions(-)
fs/nfs/pagelist.c +0 -77
@@ -207,83 +207,6 @@ nfs_page_group_lock_head(struct nfs_page }/* -* nfs_unroll_locks - unlock all newly locked reqs and wait on @req -* @head: head request of page group, must be holding head lock -* @req: request that couldn't lock and needs to wait on the req bit lock -* -* This is a helper function for nfs_lock_and_join_requests -* returns 0 on success, < 0 on error. -*/ -static void -nfs_unroll_locks (struct nfs_page *head,struct nfs_page *req) -{ -struct nfs_page *tmp; - -/* relinquish all the locks successfully grabbed this run */ -for (tmp = head->wb_this_page ; tmp != req; tmp = tmp->wb_this_page) { -if (!kref_read (&tmp->wb_kref)) -continue ; -nfs_unlock_and_release_request (tmp); - } -} - -/* -* nfs_page_group_lock_subreq - try to lock a subrequest -* @head: head request of page group -* @subreq: request to lock -* -* This is a helper function for nfs_lock_and_join_requests which -* must be called with the head request and page group both locked. -* On error, it returns with the page group unlocked. -*/ -static int -nfs_page_group_lock_subreq (struct nfs_page *head,struct nfs_page *subreq) -{ -int ret; - -if (!kref_get_unless_zero (&subreq->wb_kref)) -return 0 ; -while (!nfs_lock_request (subreq)) { -nfs_page_group_unlock (head); - ret =nfs_wait_on_request (subreq); -if (!ret) - ret =nfs_page_group_lock (head); -if (ret <0 ) { -nfs_unroll_locks (head, subreq); -nfs_release_request (subreq); -return ret; - } - } -return 0 ; -} - -/* -* nfs_page_group_lock_subrequests - try to lock the subrequests -* @head: head request of page group -* -* This is a helper function for nfs_lock_and_join_requests which -* must be called with the head request locked. -*/ -int nfs_page_group_lock_subrequests (struct nfs_page *head) -{ -struct nfs_page *subreq; -int ret; - - ret =nfs_page_group_lock (head); -if (ret <0 ) -return ret; -/* lock each request in the page group */ -for (subreq = head->wb_this_page; subreq != head; - subreq = subreq->wb_this_page) { - ret =nfs_page_group_lock_subreq (head, subreq); -if (ret <0 ) -return ret; - } -nfs_page_group_unlock (head); -return 0 ; -} - -/* * nfs_page_set_headlock - set the request PG_HEADLOCK * @req: request that is to be locked *
fs/nfs/write.c +69 -6
98 lines not on this page · raw message
include/linux/nfs_page.h +0 -1
@@ -156,7 +156,6 @@ extern int nfs_wait_on_request(struct nextern void nfs_unlock_request (struct nfs_page *req);extern void nfs_unlock_and_release_request (struct nfs_page *);extern struct nfs_page *nfs_page_group_lock_head (struct nfs_page *req); -extern int nfs_page_group_lock_subrequests (struct nfs_page *head);extern void nfs_join_page_group (struct nfs_page *head,struct nfs_commit_info *cinfo,struct inode *inode);
Greg Kroah-Hartman
maintainerPATCH 15/75 NFS: Fix a race when updating an existing write
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Trond Myklebust <[email protected]>
commit 76d2e3890fb169168c73f2e4f8375c7cc24a765e upstream.
After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group.
The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head.
So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
--- fs/nfs/pagelist.c | 9 +++-- fs/nfs/write.c | 71 ++++++++++++++++------------------------------- include/linux/nfs_page.h | 1 3 files changed, 31 insertions(+), 50 deletions(-)
fs/nfs/pagelist.c +5 -4
@@ -272,13 +272,14 @@ nfs_page_group_unlock(struct nfs_page *rnfs_page_clear_headlock (req); } -/* -* nfs_page_group_sync_on_bit_locked +/** +* nfs_page_group_sync_on_bit_locked - Test if all requests have @bit set +* @req: request in page group +* @bit: PG_* bit that is used to sync page group * * must be called with page group lock held */ -static bool -nfs_page_group_sync_on_bit_locked (struct nfs_page *req,unsigned int bit) +bool nfs_page_group_sync_on_bit_locked (struct nfs_page *req,unsigned int bit) {struct nfs_page *head = req->wb_head;struct nfs_page *tmp;
fs/nfs/write.c +25 -46
114 lines not on this page · raw message
include/linux/nfs_page.h +1 -0
@@ -162,6 +162,7 @@ extern void nfs_join_page_group(struct nextern int nfs_page_group_lock (struct nfs_page *);extern void nfs_page_group_unlock (struct nfs_page *);extern bool nfs_page_group_sync_on_bit (struct nfs_page *,unsigned int ); +extern bool nfs_page_group_sync_on_bit_locked (struct nfs_page *,unsigned int );extern int nfs_page_set_headlock (struct nfs_page *req);extern void nfs_page_clear_headlock (struct nfs_page *req);extern bool nfs_async_iocounter_wait (struct rpc_task *,struct nfs_lock_context *);
Greg Kroah-Hartman
maintainerPATCH 16/75 vhost/net: Protect ubufs with rcu read lock in vhost_net_ubuf_put()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nikolay Kuratov <[email protected]>
commit dd54bcf86c91a4455b1f95cbc8e9ac91205f3193 upstream.
When operating on struct vhost_net_ubuf_ref, the following execution sequence is theoretically possible:
CPU0 is finalizing DMA operation CPU1 is doing VHOST_NET_SET_BACKEND
// ubufs->refcount == 2
vhost_net_ubuf_put() vhost_net_ubuf_put_wait_and_free(oldubufs)
vhost_net_ubuf_put_and_wait()
vhost_net_ubuf_put()
int r = atomic_sub_return(1, &ubufs->refcount);
// r = 1
int r = atomic_sub_return(1, &ubufs->refcount);
// r = 0
wait_event(ubufs->wait, !atomic_read(&ubufs->refcount));
// no wait occurs here because condition is already true
kfree(ubufs);if (unlikely(!r))
wake_up(&ubufs->wait); // use-after-free
This leads to use-after-free on ubufs access. This happens because CPU1 skips waiting for wake_up() when refcount is already zero.
To prevent that use a read-side RCU critical section in vhost_net_ubuf_put(), as suggested by Hillf Danton. For this lock to take effect, free ubufs with kfree_rcu().
Message-Id: <[email protected]>
--- drivers/vhost/net.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
drivers/vhost/net.c +7 -2
@@ -96,6 +96,7 @@ struct vhost_net_ubuf_ref {atomic_t refcount;wait_queue_head_t wait;struct vhost_virtqueue *vq; +struct rcu_head rcu; };#define VHOST_NET_BATCH 64
@@ -249,9 +250,13 @@ vhost_net_ubuf_alloc(struct vhost_virtqustatic int vhost_net_ubuf_put (struct vhost_net_ubuf_ref *ubufs) { -int r =atomic_sub_return (1 , &ubufs->refcount); +int r; + +rcu_read_lock (); + r =atomic_sub_return (1 , &ubufs->refcount);if (unlikely (!r))wake_up (&ubufs->wait); +rcu_read_unlock ();return r; }
@@ -264,7 +269,7 @@ static void vhost_net_ubuf_put_and_wait(static void vhost_net_ubuf_put_wait_and_free (struct vhost_net_ubuf_ref *ubufs) {vhost_net_ubuf_put_and_wait (ubufs); -kfree (ubufs); +kfree_rcu (ubufs, rcu); }static void vhost_net_clear_ubuf_info (struct vhost_net *n)
Greg Kroah-Hartman
maintainerPATCH 17/75 net: ipv4: fix regression in local-broadcast routes
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Oscar Maes <[email protected]>
[ Upstream commit 5189446ba995556eaa3755a6e875bc06675b88bd ]
Commit 9e30ecf23b1b ("net: ipv4: fix incorrect MTU in broadcast routes") introduced a regression where local-broadcast packets would have their gateway set in __mkroute_output, which was caused by fi = NULL being removed.
Fix this by resetting the fib_info for local-broadcast packets. This preserves the intended changes for directed-broadcast packets.
--- net/ipv4/route.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
net/ipv4/route.c +7 -3
@@ -2547,12 +2547,16 @@ static struct rtable *__mkroute_output(const struct fib_result *res, !netif_is_l3_master(dev_out))return ERR_PTR (-EINVAL ); -if (ipv4_is_lbcast (fl4->daddr)) +if (ipv4_is_lbcast (fl4->daddr)) { type =RTN_BROADCAST ; -else if (ipv4_is_multicast (fl4->daddr)) + +/* reset fi to prevent gateway resolution */ + fi =NULL ; + }else if (ipv4_is_multicast (fl4->daddr)) { type =RTN_MULTICAST ; -else if (ipv4_is_zeronet (fl4->daddr)) + }else if (ipv4_is_zeronet (fl4->daddr)) {return ERR_PTR (-EINVAL ); + }if (dev_out->flags &IFF_LOOPBACK ) flags |=RTCF_LOCAL ;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 18/75 drm/msm: Defer fd_install in SUBMIT ioctl
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rob Clark <[email protected]>
[ Upstream commit f22853435bbd1e9836d0dce7fd99c040b94c2bf1 ]
Avoid fd_install() until there are no more potential error paths, to avoid put_unused_fd() after the fd is made visible to userspace.
Patchwork: https://patchwork.freedesktop.org/patch/665363/
--- drivers/gpu/drm/msm/msm_gem_submit.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
drivers/gpu/drm/msm/msm_gem_submit.c +7 -7
@@ -981,12 +981,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,if (ret ==0 && args->flags &MSM_SUBMIT_FENCE_FD_OUT ) { sync_file =sync_file_create (submit->user_fence); -if (!sync_file) { +if (!sync_file) ret = -ENOMEM ; - }else { -fd_install (out_fence_fd, sync_file->file); - args->fence_fd = out_fence_fd; - } }submit_attach_object_fences (submit);
@@ -1013,10 +1009,14 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, out_unlock:mutex_unlock (&queue->lock); out_post_unlock: -if (ret && (out_fence_fd >=0 )) { -put_unused_fd (out_fence_fd); +if (ret) { +if (out_fence_fd >=0 ) +put_unused_fd (out_fence_fd);if (sync_file)fput (sync_file->file); + }else if (sync_file) { +fd_install (out_fence_fd, sync_file->file); + args->fence_fd = out_fence_fd; }if (!IS_ERR_OR_NULL (submit)) {
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 19/75 powerpc/kvm: Fix ifdef to remove build warning
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Madhavan Srinivasan <[email protected]>
[ Upstream commit 88688a2c8ac6c8036d983ad8b34ce191c46a10aa ]
When compiling for pseries or powernv defconfig with "make C=1", these warning were reported bu sparse tool in powerpc/kernel/kvm.c
arch/powerpc/kernel/kvm.c:635:9: warning: switch with no cases arch/powerpc/kernel/kvm.c:646:9: warning: switch with no cases
Currently #ifdef were added after the switch case which are specific for BOOKE and PPC_BOOK3S_32. These are not enabled in pseries/powernv defconfig. Fix it by moving the #ifdef before switch(){}
--- arch/powerpc/kernel/kvm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
arch/powerpc/kernel/kvm.c +4 -4
@@ -632,19 +632,19 @@ static void __init kvm_check_ins(u32 *inst, u32 features)#endif } -switch (inst_no_rt & ~KVM_MASK_RB ) {#ifdef CONFIG_PPC_BOOK3S_32 +switch (inst_no_rt & ~KVM_MASK_RB ) {case KVM_INST_MTSRIN :if (features &KVM_MAGIC_FEAT_SR ) {u32 inst_rb = _inst &KVM_MASK_RB ;kvm_patch_ins_mtsrin (inst, inst_rt, inst_rb); }break ; -#endif } +#endif -switch (_inst) {#ifdef CONFIG_BOOKE +switch (_inst) {case KVM_INST_WRTEEI_0 :kvm_patch_ins_wrteei_0 (inst);break ;
@@ -652,8 +652,8 @@ static void __init kvm_check_ins(u32 *inst, u32 features)case KVM_INST_WRTEEI_1 :kvm_patch_ins_wrtee (inst,0 ,1 ); break; -#endif } +#endif }extern u32 kvm_template_start[];
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 20/75 HID: input: rename hidinput_set_battery_charge_status()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: José Expósito <[email protected]>
[ Upstream commit a82231b2a8712d0218fc286a9b0da328d419a3f4 ]
In preparation for a patch fixing a bug affecting hidinput_set_battery_charge_status(), rename the function to hidinput_update_battery_charge_status() and move it up so it can be used by hidinput_update_battery().
Refactor, no functional changes.
Stable-dep-of: e94536e1d181 ("HID: input: report battery status changes immediately")
--- drivers/hid/hid-input-test.c | 10 +++++----- drivers/hid/hid-input.c | 38 ++++++++++++++++++------------------ 2 files changed, 24 insertions(+), 24 deletions(-)
drivers/hid/hid-input-test.c +5 -5
@@ -7,7 +7,7 @@#include <kunit/test.h> -static void hid_test_input_set_battery_charge_status (struct kunit *test) +static void hid_test_input_update_battery_charge_status (struct kunit *test) {struct hid_device *dev;bool handled;
@@ -15,15 +15,15 @@ static void hid_test_input_set_battery_charge_status(struct kunit *test) dev =kunit_kzalloc (test,sizeof (*dev),GFP_KERNEL );KUNIT_ASSERT_NOT_ERR_OR_NULL (test, dev); - handled =hidinput_set_battery_charge_status (dev,HID_DG_HEIGHT ,0 ); + handled =hidinput_update_battery_charge_status (dev,HID_DG_HEIGHT ,0 );KUNIT_EXPECT_FALSE (test, handled);KUNIT_EXPECT_EQ (test, dev->battery_charge_status,POWER_SUPPLY_STATUS_UNKNOWN ); - handled =hidinput_set_battery_charge_status (dev,HID_BAT_CHARGING ,0 ); + handled =hidinput_update_battery_charge_status (dev,HID_BAT_CHARGING ,0 );KUNIT_EXPECT_TRUE (test, handled);KUNIT_EXPECT_EQ (test, dev->battery_charge_status,POWER_SUPPLY_STATUS_DISCHARGING ); - handled =hidinput_set_battery_charge_status (dev,HID_BAT_CHARGING ,1 ); + handled =hidinput_update_battery_charge_status (dev,HID_BAT_CHARGING ,1 );KUNIT_EXPECT_TRUE (test, handled);KUNIT_EXPECT_EQ (test, dev->battery_charge_status,POWER_SUPPLY_STATUS_CHARGING ); }
@@ -63,7 +63,7 @@ static void hid_test_input_get_battery_property(struct kunit *test) }static struct kunit_case hid_input_tests[] = { -KUNIT_CASE (hid_test_input_set_battery_charge_status), +KUNIT_CASE (hid_test_input_update_battery_charge_status),KUNIT_CASE (hid_test_input_get_battery_property), { } };
drivers/hid/hid-input.c +19 -19
@@ -595,6 +595,20 @@ static void hidinput_cleanup_battery(struct hid_device *dev) dev->battery =NULL ; } +static bool hidinput_update_battery_charge_status (struct hid_device *dev, +unsigned int usage,int value) +{ +switch (usage) { +case HID_BAT_CHARGING : + dev->battery_charge_status = value ? +POWER_SUPPLY_STATUS_CHARGING : +POWER_SUPPLY_STATUS_DISCHARGING ; +return true; + } + +return false; +} +static void hidinput_update_battery (struct hid_device *dev,int value) {int capacity;
@@ -617,20 +631,6 @@ static void hidinput_update_battery(struct hid_device *dev, int value) power_supply_changed(dev->battery); } } - -static bool hidinput_set_battery_charge_status (struct hid_device *dev, -unsigned int usage,int value) -{ -switch (usage) { -case HID_BAT_CHARGING : - dev->battery_charge_status = value ? -POWER_SUPPLY_STATUS_CHARGING : -POWER_SUPPLY_STATUS_DISCHARGING ; -return true; - } - -return false; -}#else /* !CONFIG_HID_BATTERY_STRENGTH */ static int hidinput_setup_battery (struct hid_device *dev,unsigned report_type,struct hid_field *field,bool is_percentage)
@@ -642,14 +642,14 @@ static void hidinput_cleanup_battery(struct hid_device *dev) { } -static void hidinput_update_battery (struct hid_device *dev,int value) +static bool hidinput_update_battery_charge_status (struct hid_device *dev, +unsigned int usage,int value) { +return false; } -static bool hidinput_set_battery_charge_status (struct hid_device *dev, -unsigned int usage,int value) +static void hidinput_update_battery (struct hid_device *dev,int value) { -return false; }#endif /* CONFIG_HID_BATTERY_STRENGTH */
@@ -1515,7 +1515,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, structreturn ;if (usage->type ==EV_PWR ) { -bool handled =hidinput_set_battery_charge_status (hid, usage->hid, value); +bool handled =hidinput_update_battery_charge_status (hid, usage->hid, value);if (!handled)hidinput_update_battery (hid, value);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 21/75 HID: input: report battery status changes immediately
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: José Expósito <[email protected]>
[ Upstream commit e94536e1d1818b0989aa19b443b7089f50133c35 ]
Previously, the battery status (charging/discharging) was not reported immediately to user-space.
For most input devices, this wasn't problematic because changing their battery status requires connecting them to a different bus. For example, a gamepad would report a discharging status while connected via Bluetooth and a charging status while connected via USB.
However, certain devices are not connected or disconnected when their battery status changes. For example, a phone battery changes its status without connecting or disconnecting it.
In these cases, the battery status was not reported immediately to user space.
Report battery status changes immediately to user space to support these kinds of devices.
--- drivers/hid/hid-input.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-)
drivers/hid/hid-input.c +10 -13
@@ -609,13 +609,19 @@ static bool hidinput_update_battery_charge_status(struct hid_device *dev,return false; } -static void hidinput_update_battery (struct hid_device *dev,int value) +static void hidinput_update_battery (struct hid_device *dev,unsigned int usage, +int value) {int capacity;if (!dev->battery)return ; +if (hidinput_update_battery_charge_status (dev, usage, value)) { +power_supply_changed (dev->battery); +return ; + } +if (value ==0 || value < dev->battery_min || value > dev->battery_max)return ;
@@ -642,13 +648,8 @@ static void hidinput_cleanup_battery(struct hid_device *dev) { } -static bool hidinput_update_battery_charge_status (struct hid_device *dev, -unsigned int usage,int value) -{ -return false; -} - -static void hidinput_update_battery (struct hid_device *dev,int value) +static void hidinput_update_battery (struct hid_device *dev,unsigned int usage, +int value) { }#endif /* CONFIG_HID_BATTERY_STRENGTH */
@@ -1515,11 +1516,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, structreturn ;if (usage->type ==EV_PWR ) { -bool handled =hidinput_update_battery_charge_status (hid, usage->hid, value); - -if (!handled) -hidinput_update_battery (hid, value); - +hidinput_update_battery (hid, usage->hid, value);return ; }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 22/75 Bluetooth: hci_event: Treat UNKNOWN_CONN_ID on disconnect as success
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ludovico de Nittis <[email protected]>
[ Upstream commit 2f050a5392b7a0928bf836d9891df4851463512c ]
When the host sends an HCI_OP_DISCONNECT command, the controller may respond with the status HCI_ERROR_UNKNOWN_CONN_ID (0x02). E.g. this can happen on resume from suspend, if the link was terminated by the remote device before the event mask was correctly set.
This is a btmon snippet that shows the issue:
```
> ACL Data RX: Handle 3 flags 0x02 dlen 12
L2CAP: Disconnection Request (0x06) ident 5 len 4
Destination CID: 65
Source CID: 72
< ACL Data TX: Handle 3 flags 0x00 dlen 12
L2CAP: Disconnection Response (0x07) ident 5 len 4
Destination CID: 65
Source CID: 72
> ACL Data RX: Handle 3 flags 0x02 dlen 12
L2CAP: Disconnection Request (0x06) ident 6 len 4
Destination CID: 64
Source CID: 71
< ACL Data TX: Handle 3 flags 0x00 dlen 12
L2CAP: Disconnection Response (0x07) ident 6 len 4
Destination CID: 64
Source CID: 71
< HCI Command: Set Event Mask (0x03|0x0001) plen 8
Mask: 0x3dbff807fffbffff
Inquiry Complete
Inquiry Result
Connection Complete
Connection Request
Disconnection Complete
Authentication Complete
[...]
< HCI Command: Disconnect (0x01|0x0006) plen 3
Handle: 3 Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4
Disconnect (0x01|0x0006) ncmd 1
Status: Unknown Connection Identifier (0x02)
```Currently, the hci_cs_disconnect function treats any non-zero status as a command failure. This can be misleading because the connection is indeed being terminated and the controller is confirming that is has no knowledge of that connection handle. Meaning that the initial request of disconnecting a device should be treated as done.
With this change we allow the function to proceed, following the success path, which correctly calls mgmt_device_disconnected and ensures a consistent state.
--- net/bluetooth/hci_event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/bluetooth/hci_event.c +1 -1
@@ -2692,7 +2692,7 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)if (!conn) goto unlock; -if (status) { +if (status && status !=HCI_ERROR_UNKNOWN_CONN_ID ) {mgmt_disconnect_failed (hdev, &conn->dst, conn->type, conn->dst_type, status);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 23/75 Bluetooth: hci_event: Mark connection as closed during suspend disconnect
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ludovico de Nittis <[email protected]>
[ Upstream commit b7fafbc499b5ee164018eb0eefe9027f5a6aaad2 ]
When suspending, the disconnect command for an active Bluetooth connection could be issued, but the corresponding HCI_EV_DISCONN_COMPLETE event might not be received before the system completes the suspend process. This can lead to an inconsistent state.
On resume, the controller may auto-accept reconnections from the same device (due to suspend event filters), but these new connections are rejected by the kernel which still has connection objects from before suspend. Resulting in errors like:
``` kernel: Bluetooth: hci0: ACL packet for unknown connection handle 1 kernel: Bluetooth: hci0: Ignoring HCI_Connection_Complete for existing connection ```
This is a btmon snippet that shows the issue:
```
< HCI Command: Disconnect (0x01|0x0006) plen 3
Handle: 1 Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4
Disconnect (0x01|0x0006) ncmd 2
Status: Success (0x00)
[...]
// Host suspends with the event filter set for the device
// On resume, the device tries to reconnect with a new handle
> HCI Event: Connect Complete (0x03) plen 11
Status: Success (0x00)
Handle: 2
Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
// Kernel ignores this event because there is an existing connection
with
// handle 1
```By explicitly setting the connection state to BT_CLOSED we can ensure a consistent state, even if we don't receive the disconnect complete event in time.
--- net/bluetooth/hci_event.c | 6 ++++++ 1 file changed, 6 insertions(+)
net/bluetooth/hci_event.c +6 -0
@@ -2707,6 +2707,12 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) goto done; } +/* During suspend, mark connection as closed immediately +* since we might not receive HCI_EV_DISCONN_COMPLETE +*/ +if (hdev->suspended) + conn->state =BT_CLOSED ; + mgmt_conn =test_and_clear_bit (HCI_CONN_MGMT_CONNECTED , &conn->flags);if (conn->type ==ACL_LINK ) {
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 24/75 Bluetooth: hci_event: Detect if HCI_EV_NUM_COMP_PKTS is unbalanced
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luiz Augusto von Dentz <[email protected]>
[ Upstream commit 15bf2c6391bafb14a3020d06ec0761bce0803463 ]
This attempts to detect if HCI_EV_NUM_COMP_PKTS contain an unbalanced (more than currently considered outstanding) number of packets otherwise it could cause the hcon->sent to underflow and loop around breaking the tracking of the outstanding packets pending acknowledgment.
--- net/bluetooth/hci_event.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
net/bluetooth/hci_event.c +11 -1
@@ -4392,7 +4392,17 @@ static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,if (!conn)continue ; - conn->sent -= count; +/* Check if there is really enough packets outstanding before +* attempting to decrease the sent counter otherwise it could +* underflow.. +*/ +if (conn->sent >= count) { + conn->sent -= count; + }else { +bt_dev_warn (hdev,"hcon %p sent %u < count %u" , + conn, conn->sent, count); + conn->sent =0 ; + }switch (conn->type) {case ACL_LINK :
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 25/75 Bluetooth: hci_sync: fix set_local_name race condition
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pavel Shpakovskiy <[email protected]>
[ Upstream commit 6bbd0d3f0c23fc53c17409dd7476f38ae0ff0cd9 ]
Function set_name_sync() uses hdev->dev_name field to send HCI_OP_WRITE_LOCAL_NAME command, but copying from data to hdev->dev_name is called after mgmt cmd was queued, so it is possible that function set_name_sync() will read old name value.
This change adds name as a parameter for function hci_update_name_sync() to avoid race condition.
--- include/net/bluetooth/hci_sync.h | 2 +- net/bluetooth/hci_sync.c | 6 +++--- net/bluetooth/mgmt.c | 5 ++++- 3 files changed, 8 insertions(+), 5 deletions(-)
include/net/bluetooth/hci_sync.h +1 -1
@@ -72,7 +72,7 @@ int hci_update_class_sync(struct hci_dev *hdev);int hci_update_eir_sync (struct hci_dev *hdev);int hci_update_class_sync (struct hci_dev *hdev); -int hci_update_name_sync (struct hci_dev *hdev); +int hci_update_name_sync (struct hci_dev *hdev,const u8 *name);int hci_write_ssp_mode_sync (struct hci_dev *hdev,u8 mode); int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
net/bluetooth/hci_sync.c +3 -3
@@ -3491,13 +3491,13 @@ int hci_update_scan_sync(struct hci_dev *hdev)return hci_write_scan_enable_sync (hdev, scan); } -int hci_update_name_sync (struct hci_dev *hdev) +int hci_update_name_sync (struct hci_dev *hdev,const u8 *name) {struct hci_cp_write_local_name cp;memset (&cp,0 ,sizeof (cp)); -memcpy (cp.name, hdev->dev_name,sizeof (cp.name)); +memcpy (cp.name, name,sizeof (cp.name)); return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp,
@@ -3550,7 +3550,7 @@ int hci_powered_update_sync(struct hci_dev *hdev)hci_write_fast_connectable_sync (hdev, false);hci_update_scan_sync (hdev);hci_update_class_sync (hdev); -hci_update_name_sync (hdev); +hci_update_name_sync (hdev, hdev->dev_name);hci_update_eir_sync (hdev); }
net/bluetooth/mgmt.c +4 -1
@@ -3819,8 +3819,11 @@ static void set_name_complete(struct hci_dev *hdev, void *data, int err)static int set_name_sync (struct hci_dev *hdev,void *data) { +struct mgmt_pending_cmd *cmd = data; +struct mgmt_cp_set_local_name *cp = cmd->param; +if (lmp_bredr_capable (hdev)) { -hci_update_name_sync (hdev); +hci_update_name_sync (hdev, cp->name);hci_update_eir_sync (hdev); }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 26/75 atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control().
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kuniyuki Iwashima <[email protected]>
[ Upstream commit ec79003c5f9d2c7f9576fc69b8dbda80305cbe3a ]
syzbot reported the splat below. [0]
When atmtcp_v_open() or atmtcp_v_close() is called via connect() or close(), atmtcp_send_control() is called to send an in-kernel special message.
The message has ATMTCP_HDR_MAGIC in atmtcp_control.hdr.length. Also, a pointer of struct atm_vcc is set to atmtcp_control.vcc.
The notable thing is struct atmtcp_control is uAPI but has a space for an in-kernel pointer.
struct atmtcp_control {
struct atmtcp_hdr hdr; /* must be first */
...
atm_kptr_t vcc; /* both directions */
...
} __ATM_API_ALIGN;
typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t;The special message is processed in atmtcp_recv_control() called from atmtcp_c_send().
atmtcp_c_send() is vcc->dev->ops->send() and called from 2 paths:
1. .ndo_start_xmit() (vcc->send() == atm_send_aal0())
2. vcc_sendmsg()
The problem is sendmsg() does not validate the message length and userspace can abuse atmtcp_recv_control() to overwrite any kptr by atmtcp_control.
Let's add a new ->pre_send() hook to validate messages from sendmsg().
[0]:
Oops: general protection fault, probably for non-canonical address 0xdffffc00200000ab: 0000 [#1] SMP KASAN PTI KASAN: probably user-memory-access in range [0x0000000100000558-0x000000010000055f] CPU: 0 UID: 0 PID: 5865 Comm: syz-executor331 Not tainted 6.17.0-rc1-syzkaller-00215-gbab3ce404553 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:atmtcp_recv_control drivers/atm/atmtcp.c:93 [inline] RIP: 0010:atmtcp_c_send+0x1da/0x950 drivers/atm/atmtcp.c:297 Code: 4d 8d 75 1a 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 15 06 00 00 41 0f b7 1e 4d 8d b7 60 05 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 13 06 00 00 66 41 89 1e 4d 8d 75 1c 4c RSP: 0018:ffffc90003f5f810 EFLAGS: 00010203 RAX: 00000000200000ab RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88802a510000 RSI: 00000000ffffffff RDI: ffff888030a6068c RBP: ffff88802699fb40 R08: ffff888030a606eb R09: 1ffff1100614c0dd R10: dffffc0000000000 R11: ffffffff8718fc40 R12: dffffc0000000000 R13: ffff888030a60680 R14: 000000010000055f R15: 00000000ffffffff FS: 00007f8d7e9236c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045ad50 CR3: 0000000075bde000 CR4: 00000000003526f0 Call Trace: <TASK> vcc_sendmsg+0xa10/0xc60 net/atm/common.c:645 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:729 ____sys_sendmsg+0x505/0x830 net/socket.c:2614 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668 __sys_sendmsg net/socket.c:2700 [inline] __do_sys_sendmsg net/socket.c:2705 [inline] __se_sys_sendmsg net/socket.c:2703 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8d7e96a4a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8d7e923198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8d7e9f4308 RCX: 00007f8d7e96a4a9 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000005 RBP: 00007f8d7e9f4300 R08: 65732f636f72702f R09: 65732f636f72702f R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f8d7e9c10ac R13: 00007f8d7e9231a0 R14: 0000200000000200 R15: 0000200000000250 </TASK> Modules linked in:
--- drivers/atm/atmtcp.c | 17 ++++++++++++++--- include/linux/atmdev.h | 1 + net/atm/common.c | 15 ++++++++++++--- 3 files changed, 27 insertions(+), 6 deletions(-)
drivers/atm/atmtcp.c +14 -3
@@ -279,6 +279,19 @@ static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)return NULL ; } +static int atmtcp_c_pre_send (struct atm_vcc *vcc,struct sk_buff *skb) +{ +struct atmtcp_hdr *hdr; + +if (skb->len <sizeof (struct atmtcp_hdr )) +return -EINVAL ; + + hdr = (struct atmtcp_hdr *)skb->data; +if (hdr->length ==ATMTCP_HDR_MAGIC ) +return -EINVAL ; + +return 0 ; +}static int atmtcp_c_send (struct atm_vcc *vcc,struct sk_buff *skb) {
@@ -288,9 +301,6 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)struct sk_buff *new_skb;int result =0 ; -if (skb->len <sizeof (struct atmtcp_hdr )) - goto done; - dev = vcc->dev_data; hdr = (struct atmtcp_hdr *) skb->data;if (hdr->length ==ATMTCP_HDR_MAGIC ) {
@@ -347,6 +357,7 @@ static const struct atmdev_ops atmtcp_v_dev_ops = {static const struct atmdev_ops atmtcp_c_dev_ops = { .close = atmtcp_c_close, + .pre_send = atmtcp_c_pre_send, .send = atmtcp_c_send };
include/linux/atmdev.h +1 -0
@@ -185,6 +185,7 @@ struct atmdev_ops { /* only send is required */int (*compat_ioctl)(struct atm_dev *dev,unsigned int cmd,void __user *arg);#endif +int (*pre_send)(struct atm_vcc *vcc,struct sk_buff *skb);int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);int (*send_bh)(struct atm_vcc *vcc,struct sk_buff *skb);int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
net/atm/common.c +12 -3
@@ -635,18 +635,27 @@ int vcc_sendmsg(struct socket *sock, struct msghdr *m, size_t size) skb->dev =NULL ;/* for paths shared with net_device interfaces */ if (!copy_from_iter_full (skb_put (skb, size), size, &m->msg_iter)) { -atm_return_tx (vcc, skb); -kfree_skb (skb); error = -EFAULT ; - goto out; + goto free_skb; }if (eff != size)memset (skb->data + size,0 , eff-size); + +if (vcc->dev->ops->pre_send) { + error = vcc->dev->ops->pre_send (vcc, skb); +if (error) + goto free_skb; + } + error = vcc->dev->ops->send (vcc, skb); error = error ? error : size; out:release_sock (sk);return error; +free_skb: +atm_return_tx (vcc, skb); +kfree_skb (skb); + goto out; }__poll_t vcc_poll (struct file *file,struct socket *sock,poll_table *wait)
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 27/75 drm/nouveau: remove unused increment in gm200_flcn_pio_imem_wr
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Timur Tabi <[email protected]>
[ Upstream commit f529b8915543fb9ceb732cec5571f7fe12bc9530 ]
The 'tag' parameter is passed by value and is not actually used after being incremented, so remove the increment. It's the function that calls gm200_flcn_pio_imem_wr that is supposed to (and does) increment 'tag'.
--- drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c +1 -1
@@ -103,7 +103,7 @@ gm200_flcn_pio_imem_wr_init(struct nvkm_falcon *falcon, u8 port, bool sec, u32 istatic void gm200_flcn_pio_imem_wr (struct nvkm_falcon *falcon,u8 port,const u8 *img,int len,u16 tag) { -nvkm_falcon_wr32 (falcon,0x188 + (port *0x10 ), tag++); +nvkm_falcon_wr32 (falcon,0x188 + (port *0x10 ), tag);while (len >=4 ) {nvkm_falcon_wr32 (falcon,0x184 + (port *0x10 ), *(u32 *)img); img +=4 ;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 28/75 drm/nouveau: remove unused memory target test
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Timur Tabi <[email protected]>
[ Upstream commit 64c722b5e7f6b909b0e448e580f64628a0d76208 ]
The memory target check is a hold-over from a refactor. It's harmless but distracting, so just remove it.
--- drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-)
drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c +3 -10
@@ -249,9 +249,11 @@ int gm200_flcn_fw_load(struct nvkm_falcon_fw *fw) {struct nvkm_falcon *falcon = fw->falcon; -int target, ret; +int ret;if (fw->inst) { +int target; +nvkm_falcon_mask (falcon,0x048 ,0x00000001 ,0x00000001 );switch (nvkm_memory_target (fw->inst)) {
@@ -285,15 +287,6 @@ gm200_flcn_fw_load(struct nvkm_falcon_fw *fw) }if (fw->boot) { -switch (nvkm_memory_target (&fw->fw.mem.memory)) { -case NVKM_MEM_TARGET_VRAM : target =4 ;break ; -case NVKM_MEM_TARGET_HOST : target =5 ;break ; -case NVKM_MEM_TARGET_NCOH : target =6 ;break ; -default : -WARN_ON (1 ); -return -EINVAL ; - } - ret =nvkm_falcon_pio_wr (falcon, fw->boot,0 ,0 ,IMEM , falcon->code.limit - fw->boot_size, fw->boot_size, fw->boot_addr >>8 , false);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 29/75 ice: Introduce ice_xdp_buff
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Larysa Zaremba <[email protected]>
[ Upstream commit d951c14ad237b087f0d1377c44932fcc0b322c40 ]
In order to use XDP hints via kfuncs we need to put RX descriptor and miscellaneous data next to xdp_buff. Same as in hints implementations in other drivers, we achieve this through putting xdp_buff into a child structure.
Currently, xdp_buff is stored in the ring structure, so replace it with union that includes child structure. This way enough memory is available while existing XDP code remains isolated from hints.
Minimum size of the new child structure (ice_xdp_buff) is exactly 64 bytes (single cache line). To place it at the start of a cache line, move 'next' field from CL1 to CL4, as it isn't used often. This still leaves 192 bits available in CL3 for packet context extensions.
Stable-dep-of: b1a0c977c6f1 ("ice: fix incorrect counter for buffer allocation failures")
--- drivers/net/ethernet/intel/ice/ice_txrx.c | 7 +++++-- drivers/net/ethernet/intel/ice/ice_txrx.h | 18 +++++++++++++++--- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 10 ++++++++++ 3 files changed, 30 insertions(+), 5 deletions(-)
drivers/net/ethernet/intel/ice/ice_txrx.c +5 -2
@@ -528,13 +528,14 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring)* @xdp_prog: XDP program to run * @xdp_ring: ring to be used for XDP_TX action * @rx_buf: Rx buffer to store the XDP action +* @eop_desc: Last descriptor in packet to read metadata from * * Returns any of ICE_XDP_{PASS, CONSUMED, TX, REDIR} */ static void ice_run_xdp (struct ice_rx_ring *rx_ring,struct xdp_buff *xdp,struct bpf_prog *xdp_prog,struct ice_tx_ring *xdp_ring, -struct ice_rx_buf *rx_buf) +struct ice_rx_buf *rx_buf,union ice_32b_rx_flex_desc *eop_desc) {unsigned int ret =ICE_XDP_PASS ;u32 act;
@@ -542,6 +543,8 @@ ice_run_xdp(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp,if (!xdp_prog) goto exit; +ice_xdp_meta_set_desc (xdp, eop_desc); + act =bpf_prog_run_xdp (xdp_prog, xdp);switch (act) {case XDP_PASS :
@@ -1240,7 +1243,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)if (ice_is_non_eop (rx_ring, rx_desc))continue ; -ice_run_xdp (rx_ring, xdp, xdp_prog, xdp_ring, rx_buf); +ice_run_xdp (rx_ring, xdp, xdp_prog, xdp_ring, rx_buf, rx_desc);if (rx_buf->act ==ICE_XDP_PASS ) goto construct_skb; total_rx_bytes +=xdp_get_buff_len (xdp);
drivers/net/ethernet/intel/ice/ice_txrx.h +15 -3
@@ -257,6 +257,14 @@ enum ice_rx_dtype { ICE_RX_DTYPE_SPLIT_ALWAYS = 2, }; +struct ice_xdp_buff { +struct xdp_buff xdp_buff; +const union ice_32b_rx_flex_desc *eop_desc; +}; + +/* Required for compatibility with xdp_buffs from xsk_pool */ +static_assert (offsetof(struct ice_xdp_buff , xdp_buff) ==0 ); +/* indices into GLINT_ITR registers */ #define ICE_RX_ITR ICE_IDX_ITR0#define ICE_TX_ITR ICE_IDX_ITR1
@@ -298,7 +306,6 @@ enum ice_dynamic_itr {/* descriptor ring, associated with a VSI */ struct ice_rx_ring {/* CL1 - 1st cacheline starts here */ -struct ice_rx_ring *next;/* pointer to next ring in q_vector */ void *desc;/* Descriptor ring memory */ struct device *dev;/* Used for DMA mapping */ struct net_device *netdev;/* netdev ring maps to */
@@ -310,12 +317,16 @@ struct ice_rx_ring {u16 count;/* Number of descriptors */ u16 reg_idx;/* HW register index of the ring */ u16 next_to_alloc; -/* CL2 - 2nd cacheline starts here */ +union {struct ice_rx_buf *rx_buf;struct xdp_buff **xdp_buf; }; -struct xdp_buff xdp; +/* CL2 - 2nd cacheline starts here */ +union { +struct ice_xdp_buff xdp_ext; +struct xdp_buff xdp; + };/* CL3 - 3rd cacheline starts here */ struct bpf_prog *xdp_prog;u16 rx_offset;
@@ -332,6 +343,7 @@ struct ice_rx_ring {/* CL4 - 4th cacheline starts here */ struct ice_channel *ch;struct ice_tx_ring *xdp_ring; +struct ice_rx_ring *next;/* pointer to next ring in q_vector */ struct xsk_buff_pool *xsk_pool;u32 nr_frags;dma_addr_t dma;/* physical address of ring */
drivers/net/ethernet/intel/ice/ice_txrx_lib.h +10 -0
@@ -164,4 +164,14 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 ptype);void ice_receive_skb (struct ice_rx_ring *rx_ring,struct sk_buff *skb,u16 vlan_tag); + +static inline void +ice_xdp_meta_set_desc (struct xdp_buff *xdp, +union ice_32b_rx_flex_desc *eop_desc) +{ + struct ice_xdp_buff *xdp_ext = container_of(xdp, struct ice_xdp_buff, + xdp_buff); + + xdp_ext->eop_desc = eop_desc; +}#endif /* !_ICE_TXRX_LIB_H_ */
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 30/75 ice: gather page_count()s of each frag right before XDP prog call
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Maciej Fijalkowski <[email protected]>
[ Upstream commit 11c4aa074d547d825b19cd8d9f288254d89d805c ]
If we store the pgcnt on few fragments while being in the middle of gathering the whole frame and we stumbled upon DD bit not being set, we terminate the NAPI Rx processing loop and come back later on. Then on next NAPI execution we work on previously stored pgcnt.
Imagine that second half of page was used actively by networking stack and by the time we came back, stack is not busy with this page anymore and decremented the refcnt. The page reuse algorithm in this case should be good to reuse the page but given the old refcnt it will not do so and attempt to release the page via page_frag_cache_drain() with pagecnt_bias used as an arg. This in turn will result in negative refcnt on struct page, which was initially observed by Xu Du.
Therefore, move the page count storage from ice_get_rx_buf() to a place where we are sure that whole frame has been collected, but before calling XDP program as it internally can also change the page count of fragments belonging to xdp_buff.
Stable-dep-of: b1a0c977c6f1 ("ice: fix incorrect counter for buffer allocation failures")
--- drivers/net/ethernet/intel/ice/ice_txrx.c | 27 ++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-)
drivers/net/ethernet/intel/ice/ice_txrx.c +26 -1
@@ -924,7 +924,6 @@ ice_get_rx_buf(struct ice_rx_ring *rx_ring, const unsigned int size,struct ice_rx_buf *rx_buf; rx_buf = &rx_ring->rx_buf[ntc]; - rx_buf->pgcnt =page_count (rx_buf->page);prefetchw (rx_buf->page);if (!size)
@@ -940,6 +939,31 @@ ice_get_rx_buf(struct ice_rx_ring *rx_ring, const unsigned int size,return rx_buf; } +/** +* ice_get_pgcnts - grab page_count() for gathered fragments +* @rx_ring: Rx descriptor ring to store the page counts on +* +* This function is intended to be called right before running XDP +* program so that the page recycling mechanism will be able to take +* a correct decision regarding underlying pages; this is done in such +* way as XDP program can change the refcount of page +*/ +static void ice_get_pgcnts (struct ice_rx_ring *rx_ring) +{ +u32 nr_frags = rx_ring->nr_frags +1 ; +u32 idx = rx_ring->first_desc; +struct ice_rx_buf *rx_buf; +u32 cnt = rx_ring->count; + +for (int i =0 ; i < nr_frags; i++) { + rx_buf = &rx_ring->rx_buf[idx]; + rx_buf->pgcnt =page_count (rx_buf->page); + +if (++idx == cnt) + idx =0 ; + } +} +/** * ice_build_skb - Build skb around an existing buffer * @rx_ring: Rx descriptor ring to transact packets on
@@ -1243,6 +1267,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)if (ice_is_non_eop (rx_ring, rx_desc))continue ; +ice_get_pgcnts (rx_ring);ice_run_xdp (rx_ring, xdp, xdp_prog, xdp_ring, rx_buf, rx_desc);if (rx_buf->act ==ICE_XDP_PASS ) goto construct_skb;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 31/75 ice: stop storing XDP verdict within ice_rx_buf
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Maciej Fijalkowski <[email protected]>
[ Upstream commit 468a1952df78f65c5991b7ac885c8b5b7dd87bab ]
Idea behind having ice_rx_buf::act was to simplify and speed up the Rx data path by walking through buffers that were representing cleaned HW Rx descriptors. Since it caused us a major headache recently and we rolled back to old approach that 'puts' Rx buffers right after running XDP prog/creating skb, this is useless now and should be removed.
Get rid of ice_rx_buf::act and related logic. We still need to take care of a corner case where XDP program releases a particular fragment.
Make ice_run_xdp() to return its result and use it within ice_put_rx_mbuf().
Stable-dep-of: b1a0c977c6f1 ("ice: fix incorrect counter for buffer allocation failures")
--- drivers/net/ethernet/intel/ice/ice_txrx.c | 62 +++++++++++-------- drivers/net/ethernet/intel/ice/ice_txrx.h | 1 - drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 43 ------------- 3 files changed, 36 insertions(+), 70 deletions(-)
drivers/net/ethernet/intel/ice/ice_txrx.c +36 -26
@@ -527,15 +527,14 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring)* @xdp: xdp_buff used as input to the XDP program * @xdp_prog: XDP program to run * @xdp_ring: ring to be used for XDP_TX action -* @rx_buf: Rx buffer to store the XDP action * @eop_desc: Last descriptor in packet to read metadata from * * Returns any of ICE_XDP_{PASS, CONSUMED, TX, REDIR} */ -static void +static u32 ice_run_xdp (struct ice_rx_ring *rx_ring,struct xdp_buff *xdp,struct bpf_prog *xdp_prog,struct ice_tx_ring *xdp_ring, -struct ice_rx_buf *rx_buf,union ice_32b_rx_flex_desc *eop_desc) +union ice_32b_rx_flex_desc *eop_desc) {unsigned int ret =ICE_XDP_PASS ;u32 act;
@@ -574,7 +573,7 @@ ice_run_xdp(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp, ret =ICE_XDP_CONSUMED ; } exit: -ice_set_rx_bufs_act (xdp, rx_ring, ret); +return ret; }/**
@@ -860,10 +859,8 @@ ice_add_xdp_frag(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp,xdp_buff_set_frags_flag (xdp); } -if (unlikely (sinfo->nr_frags ==MAX_SKB_FRAGS )) { -ice_set_rx_bufs_act (xdp, rx_ring,ICE_XDP_CONSUMED ); +if (unlikely (sinfo->nr_frags ==MAX_SKB_FRAGS ))return -ENOMEM ; - }__skb_fill_page_desc_noacc (sinfo, sinfo->nr_frags++, rx_buf->page, rx_buf->page_offset, size);
@@ -1076,12 +1073,12 @@ ice_construct_skb(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp) rx_buf->page_offset + headlen, size, xdp->frame_sz); }else { -/* buffer is unused, change the act that should be taken later -* on; data was copied onto skb's linear part so there's no +/* buffer is unused, restore biased page count in Rx buffer; +* data was copied onto skb's linear part so there's no * need for adjusting page offset and we can reuse this buffer * as-is */ - rx_buf->act =ICE_SKB_CONSUMED ; + rx_buf->pagecnt_bias++; }if (unlikely (xdp_buff_has_frags (xdp))) {
@@ -1134,29 +1131,34 @@ ice_put_rx_buf(struct ice_rx_ring *rx_ring, struct ice_rx_buf *rx_buf)* @xdp: XDP buffer carrying linear + frags part * @xdp_xmit: XDP_TX/XDP_REDIRECT verdict storage * @ntc: a current next_to_clean value to be stored at rx_ring +* @verdict: return code from XDP program execution * * Walk through gathered fragments and satisfy internal page * recycle mechanism; we take here an action related to verdict * returned by XDP program; */ static void ice_put_rx_mbuf (struct ice_rx_ring *rx_ring,struct xdp_buff *xdp, -u32 *xdp_xmit,u32 ntc) +u32 *xdp_xmit,u32 ntc,u32 verdict) {u32 nr_frags = rx_ring->nr_frags +1 ;u32 idx = rx_ring->first_desc;u32 cnt = rx_ring->count; +u32 post_xdp_frags =1 ;struct ice_rx_buf *buf;int i; -for (i =0 ; i < nr_frags; i++) { +if (unlikely (xdp_buff_has_frags (xdp))) + post_xdp_frags +=xdp_get_shared_info_from_buff (xdp)->nr_frags; + +for (i =0 ; i < post_xdp_frags; i++) { buf = &rx_ring->rx_buf[idx]; -if (buf->act & (ICE_XDP_TX |ICE_XDP_REDIR )) { +if (verdict & (ICE_XDP_TX |ICE_XDP_REDIR )) {ice_rx_buf_adjust_pg_offset (buf, xdp->frame_sz); - *xdp_xmit |= buf->act; - }else if (buf->act &ICE_XDP_CONSUMED ) { + *xdp_xmit |= verdict; + }else if (verdict &ICE_XDP_CONSUMED ) { buf->pagecnt_bias++; - }else if (buf->act ==ICE_XDP_PASS ) { + }else if (verdict ==ICE_XDP_PASS ) {ice_rx_buf_adjust_pg_offset (buf, xdp->frame_sz); }
@@ -1165,6 +1167,17 @@ static void ice_put_rx_mbuf(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp,if (++idx == cnt) idx =0 ; } +/* handle buffers that represented frags released by XDP prog; +* for these we keep pagecnt_bias as-is; refcount from struct page +* has been decremented within XDP prog and we do not have to increase +* the biased refcnt +*/ +for (; i < nr_frags; i++) { + buf = &rx_ring->rx_buf[idx]; +ice_put_rx_buf (rx_ring, buf); +if (++idx == cnt) + idx =0 ; + } xdp->data =NULL ; rx_ring->first_desc = ntc;
@@ -1191,9 +1204,9 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)struct ice_tx_ring *xdp_ring =NULL ;struct bpf_prog *xdp_prog =NULL ;u32 ntc = rx_ring->next_to_clean; +u32 cached_ntu, xdp_verdict;u32 cnt = rx_ring->count;u32 xdp_xmit =0 ; -u32 cached_ntu;bool failure; xdp_prog =READ_ONCE (rx_ring->xdp_prog);
@@ -1257,7 +1270,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)xdp_prepare_buff (xdp, hard_start, offset, size, !!offset);xdp_buff_clear_frags_flag (xdp); }else if (ice_add_xdp_frag (rx_ring, xdp, rx_buf, size)) { -ice_put_rx_mbuf (rx_ring, xdp,NULL , ntc); +ice_put_rx_mbuf (rx_ring, xdp,NULL , ntc,ICE_XDP_CONSUMED );break ; }if (++ntc == cnt)
@@ -1268,13 +1281,13 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)continue ;ice_get_pgcnts (rx_ring); -ice_run_xdp (rx_ring, xdp, xdp_prog, xdp_ring, rx_buf, rx_desc); -if (rx_buf->act ==ICE_XDP_PASS ) + xdp_verdict =ice_run_xdp (rx_ring, xdp, xdp_prog, xdp_ring, rx_desc); +if (xdp_verdict ==ICE_XDP_PASS ) goto construct_skb; total_rx_bytes +=xdp_get_buff_len (xdp); total_rx_pkts++; -ice_put_rx_mbuf (rx_ring, xdp, &xdp_xmit, ntc); +ice_put_rx_mbuf (rx_ring, xdp, &xdp_xmit, ntc, xdp_verdict);continue ; construct_skb:
@@ -1285,12 +1298,9 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)/* exit if we failed to retrieve a buffer */ if (!skb) { rx_ring->ring_stats->rx_stats.alloc_page_failed++; - rx_buf->act =ICE_XDP_CONSUMED ; -if (unlikely (xdp_buff_has_frags (xdp))) -ice_set_rx_bufs_act (xdp, rx_ring, -ICE_XDP_CONSUMED ); + xdp_verdict =ICE_XDP_CONSUMED ; } -ice_put_rx_mbuf (rx_ring, xdp, &xdp_xmit, ntc); +ice_put_rx_mbuf (rx_ring, xdp, &xdp_xmit, ntc, xdp_verdict);if (!skb)break ;
drivers/net/ethernet/intel/ice/ice_txrx.h +0 -1
@@ -201,7 +201,6 @@ struct ice_rx_buf {struct page *page;unsigned int page_offset;unsigned int pgcnt; -unsigned int act;unsigned int pagecnt_bias; };
drivers/net/ethernet/intel/ice/ice_txrx_lib.h +0 -43
49 lines not on this page · raw message
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 32/75 ice: fix incorrect counter for buffer allocation failures
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michal Kubiak <[email protected]>
[ Upstream commit b1a0c977c6f1130f7dd125ee3db8c2435d7e3d41 ]
Currently, the driver increments alloc_page_failed when buffer allocation fails in ice_clean_rx_irq(). However, this counter is intended for page allocation failures, not buffer allocation issues.
This patch corrects the counter by incrementing alloc_buf_failed instead, ensuring accurate statistics reporting for buffer allocation failures.
--- drivers/net/ethernet/intel/ice/ice_txrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/intel/ice/ice_txrx.c +1 -1
@@ -1297,7 +1297,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) skb =ice_construct_skb (rx_ring, xdp);/* exit if we failed to retrieve a buffer */ if (!skb) { - rx_ring->ring_stats->rx_stats.alloc_page_failed++; + rx_ring->ring_stats->rx_stats.alloc_buf_failed++; xdp_verdict =ICE_XDP_CONSUMED ; }ice_put_rx_mbuf (rx_ring, xdp, &xdp_xmit, ntc, xdp_verdict);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 33/75 dt-bindings: display/msm: qcom,mdp5: drop lut clock
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dmitry Baryshkov <[email protected]>
[ Upstream commit 7ab3b7579a6d2660a3425b9ea93b9a140b07f49c ]
None of MDP5 platforms have a LUT clock on the display-controller, it was added by the mistake. Drop it, fixing DT warnings on MSM8976 / MSM8956 platforms. Technically it's an ABI break, but no other platforms are affected.
Patchwork: https://patchwork.freedesktop.org/patch/667822/
--- Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml | 1 - 1 file changed, 1 deletion(-)
Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml +0 -1
@@ -59,7 +59,6 @@ properties: - const: bus - const: core - const: vsync - - const: lut - const: tbu - const: tbu_rt # MSM8996 has additional iommu clock
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 34/75 net: dlink: fix multicast stats being counted incorrectly
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yeounsu Moon <[email protected]>
[ Upstream commit 007a5ffadc4fd51739527f1503b7cf048f31c413 ]
McstFramesRcvdOk counts the number of received multicast packets, and it reports the value correctly.
However, reading McstFramesRcvdOk clears the register to zero. As a result, the driver was reporting only the packets since the last read, instead of the accumulated total.
Fix this by updating the multicast statistics accumulatively instaed of instantaneously.
Tested-on: D-Link DGE-550T Rev-A3
--- drivers/net/ethernet/dlink/dl2k.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/dlink/dl2k.c +1 -1
@@ -1092,7 +1092,7 @@ get_stats (struct net_device *dev) dev->stats.rx_bytes +=dr32 (OctetRcvOk); dev->stats.tx_bytes +=dr32 (OctetXmtOk); - dev->stats.multicast =dr32 (McstFramesRcvdOk); + dev->stats.multicast +=dr32 (McstFramesRcvdOk); dev->stats.collisions +=dr32 (SingleColFrames) +dr32 (MultiColFrames);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 35/75 phy: mscc: Fix when PTP clock is register and unregister
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Horatiu Vultur <[email protected]>
[ Upstream commit 882e57cbc7204662f6c5672d5b04336c1d790b03 ]
It looks like that every time when the interface was set down and up the driver was creating a new ptp clock. On top of this the function ptp_clock_unregister was never called.
Therefore fix this by calling ptp_clock_register and initialize the mii_ts struct inside the probe function and call ptp_clock_unregister when driver is removed.
--- drivers/net/phy/mscc/mscc.h | 4 ++++ drivers/net/phy/mscc/mscc_main.c | 4 +--- drivers/net/phy/mscc/mscc_ptp.c | 34 ++++++++++++++++++++------------ 3 files changed, 26 insertions(+), 16 deletions(-)
drivers/net/phy/mscc/mscc.h +4 -0
@@ -476,6 +476,7 @@ static inline void vsc8584_config_macsec_intr(struct phy_device *phydev)void vsc85xx_link_change_notify (struct phy_device *phydev);void vsc8584_config_ts_intr (struct phy_device *phydev);int vsc8584_ptp_init (struct phy_device *phydev); +void vsc8584_ptp_deinit (struct phy_device *phydev);int vsc8584_ptp_probe_once (struct phy_device *phydev);int vsc8584_ptp_probe (struct phy_device *phydev);irqreturn_t vsc8584_handle_ts_interrupt (struct phy_device *phydev);
@@ -490,6 +491,9 @@ static inline int vsc8584_ptp_init(struct phy_device *phydev) {return 0 ; } +static inline void vsc8584_ptp_deinit (struct phy_device *phydev) +{ +}static inline int vsc8584_ptp_probe_once (struct phy_device *phydev) {return 0 ;
drivers/net/phy/mscc/mscc_main.c +1 -3
@@ -2337,9 +2337,7 @@ static int vsc85xx_probe(struct phy_device *phydev)static void vsc85xx_remove (struct phy_device *phydev) { -struct vsc8531_private *priv = phydev->priv; - -skb_queue_purge (&priv->rx_skbs_list); +vsc8584_ptp_deinit (phydev); }/* Microsemi VSC85xx PHYs */
drivers/net/phy/mscc/mscc_ptp.c +21 -13
@@ -1297,7 +1297,6 @@ static void vsc8584_set_input_clk_configured(struct phy_device *phydev)static int __vsc8584_init_ptp (struct phy_device *phydev) { -struct vsc8531_private *vsc8531 = phydev->priv;static const u32 ltc_seq_e[] = {0 ,400000 ,0 ,0 ,0 };static const u8 ltc_seq_a[] = {8 ,6 ,5 ,4 ,2 };u32 val;
@@ -1514,17 +1513,7 @@ static int __vsc8584_init_ptp(struct phy_device *phydev)vsc85xx_ts_eth_cmp1_sig (phydev); - vsc8531->mii_ts.rxtstamp = vsc85xx_rxtstamp; - vsc8531->mii_ts.txtstamp = vsc85xx_txtstamp; - vsc8531->mii_ts.hwtstamp = vsc85xx_hwtstamp; - vsc8531->mii_ts.ts_info = vsc85xx_ts_info; - phydev->mii_ts = &vsc8531->mii_ts; - -memcpy (&vsc8531->ptp->caps, &vsc85xx_clk_caps,sizeof (vsc85xx_clk_caps)); - - vsc8531->ptp->ptp_clock =ptp_clock_register (&vsc8531->ptp->caps, - &phydev->mdio.dev); -return PTR_ERR_OR_ZERO (vsc8531->ptp->ptp_clock); +return 0 ; }void vsc8584_config_ts_intr (struct phy_device *phydev)
@@ -1551,6 +1540,16 @@ int vsc8584_ptp_init(struct phy_device *phydev)return 0 ; } +void vsc8584_ptp_deinit (struct phy_device *phydev) +{ +struct vsc8531_private *vsc8531 = phydev->priv; + +if (vsc8531->ptp->ptp_clock) { +ptp_clock_unregister (vsc8531->ptp->ptp_clock); +skb_queue_purge (&vsc8531->rx_skbs_list); + } +} +irqreturn_t vsc8584_handle_ts_interrupt (struct phy_device *phydev) {struct vsc8531_private *priv = phydev->priv;
@@ -1608,7 +1607,16 @@ int vsc8584_ptp_probe(struct phy_device *phydev) vsc8531->ptp->phydev = phydev; -return 0 ; + vsc8531->mii_ts.rxtstamp = vsc85xx_rxtstamp; + vsc8531->mii_ts.txtstamp = vsc85xx_txtstamp; + vsc8531->mii_ts.hwtstamp = vsc85xx_hwtstamp; + vsc8531->mii_ts.ts_info = vsc85xx_ts_info; + phydev->mii_ts = &vsc8531->mii_ts; + +memcpy (&vsc8531->ptp->caps, &vsc85xx_clk_caps,sizeof (vsc85xx_clk_caps)); + vsc8531->ptp->ptp_clock =ptp_clock_register (&vsc8531->ptp->caps, + &phydev->mdio.dev); +return PTR_ERR_OR_ZERO (vsc8531->ptp->ptp_clock); }int vsc8584_ptp_probe_once (struct phy_device *phydev)
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 36/75 net/mlx5: Reload auxiliary drivers on fw_activate
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Moshe Shemesh <[email protected]>
[ Upstream commit 34cc6a54914f478c93e176450fae6313404f9f74 ]
The devlink reload fw_activate command performs firmware activation followed by driver reload, while devlink reload driver_reinit triggers only driver reload. However, the driver reload logic differs between the two modes, as on driver_reinit mode mlx5 also reloads auxiliary drivers, while in fw_activate mode the auxiliary drivers are suspended where applicable.
Additionally, following the cited commit, if the device has multiple PFs, the behavior during fw_activate may vary between PFs: one PF may suspend auxiliary drivers, while another reloads them.
Align devlink dev reload fw_activate behavior with devlink dev reload driver_reinit, to reload all auxiliary drivers.
--- drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/mellanox/mlx5/core/devlink.c +1 -1
@@ -107,7 +107,7 @@ static int mlx5_devlink_reload_fw_activate(struct devlink *devlink, struct netliif (err)return err; -mlx5_unload_one_devl_locked (dev, true); +mlx5_unload_one_devl_locked (dev, false); err =mlx5_health_wait_pci_up (dev);if (err)NL_SET_ERR_MSG_MOD (extack,"FW activate aborted, PCI reads fail after reset" );
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 37/75 net/mlx5: Add device cap for supporting hot reset in sync reset flow
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Moshe Shemesh <[email protected]>
[ Upstream commit 9947204cdad97d22d171039019a4aad4d6899cdd ]
New devices with new FW can support sync reset for firmware activate using hot reset. Add capability for supporting it and add MFRL field to query from FW which type of PCI reset method to use while handling sync reset events.
Stable-dep-of: 902a8bc23a24 ("net/mlx5: Fix lockdep assertion on sync reset unload event")
--- include/linux/mlx5/mlx5_ifc.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
include/linux/mlx5/mlx5_ifc.h +9 -2
@@ -1731,7 +1731,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {u8 reserved_at_328[0x2 ];u8 relaxed_ordering_read[0x1 ];u8 log_max_pd[0x5 ]; -u8 reserved_at_330[0x6 ]; +u8 reserved_at_330[0x5 ]; +u8 pcie_reset_using_hotreset_method[0x1 ];u8 pci_sync_for_fw_update_with_driver_unload[0x1 ];u8 vnic_env_cnt_steering_fail[0x1 ];u8 vport_counter_local_loopback[0x1 ];
@@ -10824,6 +10825,11 @@ struct mlx5_ifc_mcda_reg_bits {u8 data[][0x20 ]; }; +enum { +MLX5_MFRL_REG_PCI_RESET_METHOD_LINK_TOGGLE =0 , +MLX5_MFRL_REG_PCI_RESET_METHOD_HOT_RESET =1 , +}; +enum {MLX5_MFRL_REG_RESET_STATE_IDLE =0 ,MLX5_MFRL_REG_RESET_STATE_IN_NEGOTIATION =1 ,
@@ -10851,7 +10857,8 @@ struct mlx5_ifc_mfrl_reg_bits {u8 pci_sync_for_fw_update_start[0x1 ];u8 pci_sync_for_fw_update_resp[0x2 ];u8 rst_type_sel[0x3 ]; -u8 reserved_at_28[0x4 ]; +u8 pci_reset_req_method[0x3 ]; +u8 reserved_at_2b[0x1 ];u8 reset_state[0x4 ];u8 reset_type[0x8 ];u8 reset_level[0x8 ];
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 38/75 net/mlx5: Add support for sync reset using hot reset
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Moshe Shemesh <[email protected]>
[ Upstream commit 57502f62678ced0149d415324931bde37b42885a ]
On device that supports sync reset for firmware activate using hot reset, the driver queries the required reset method while handling the sync reset request. If the required reset method is hot reset, the driver will use pci_reset_bus() to reset the PCI link instead of the link toggle.
Stable-dep-of: 902a8bc23a24 ("net/mlx5: Fix lockdep assertion on sync reset unload event")
--- .../ethernet/mellanox/mlx5/core/fw_reset.c | 82 +++++++++++++++---- .../net/ethernet/mellanox/mlx5/core/main.c | 3 + 2 files changed, 69 insertions(+), 16 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c +66 -16
@@ -26,6 +26,7 @@ struct mlx5_fw_reset {struct work_struct reset_now_work;struct work_struct reset_abort_work;unsigned long reset_flags; +u8 reset_method;struct timer_list timer;struct completion done;int ret;
@@ -94,7 +95,7 @@ static int mlx5_reg_mfrl_set(struct mlx5_core_dev *dev, u8 reset_level, }static int mlx5_reg_mfrl_query (struct mlx5_core_dev *dev,u8 *reset_level, -u8 *reset_type,u8 *reset_state) +u8 *reset_type,u8 *reset_state,u8 *reset_method) {u32 out[MLX5_ST_SZ_DW (mfrl_reg)] = {};u32 in[MLX5_ST_SZ_DW (mfrl_reg)] = {};
@@ -110,13 +111,26 @@ static int mlx5_reg_mfrl_query(struct mlx5_core_dev *dev, u8 *reset_level, *reset_type =MLX5_GET (mfrl_reg, out, reset_type);if (reset_state) *reset_state =MLX5_GET (mfrl_reg, out, reset_state); +if (reset_method) + *reset_method =MLX5_GET (mfrl_reg, out, pci_reset_req_method);return 0 ; }int mlx5_fw_reset_query (struct mlx5_core_dev *dev,u8 *reset_level,u8 *reset_type) { -return mlx5_reg_mfrl_query (dev, reset_level, reset_type,NULL ); +return mlx5_reg_mfrl_query (dev, reset_level, reset_type,NULL ,NULL ); +} + +static int mlx5_fw_reset_get_reset_method (struct mlx5_core_dev *dev, +u8 *reset_method) +{ +if (!MLX5_CAP_GEN (dev, pcie_reset_using_hotreset_method)) { + *reset_method =MLX5_MFRL_REG_PCI_RESET_METHOD_LINK_TOGGLE ; +return 0 ; + } + +return mlx5_reg_mfrl_query (dev,NULL ,NULL ,NULL , reset_method); } static int mlx5_fw_reset_get_reset_state_err(struct mlx5_core_dev *dev,
@@ -124,7 +138,7 @@ static int mlx5_fw_reset_get_reset_state_err(struct mlx5_core_dev *dev, {u8 reset_state; -if (mlx5_reg_mfrl_query (dev,NULL ,NULL , &reset_state)) +if (mlx5_reg_mfrl_query (dev,NULL ,NULL , &reset_state,NULL )) goto out;if (!reset_state)
@@ -402,7 +416,11 @@ static void mlx5_sync_reset_request_event(struct work_struct *work)struct mlx5_core_dev *dev = fw_reset->dev;int err; -if (test_bit (MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST , &fw_reset->reset_flags) || + err =mlx5_fw_reset_get_reset_method (dev, &fw_reset->reset_method); +if (err) +mlx5_core_warn (dev,"Failed reading MFRL, err %d\n" , err); + +if (err ||test_bit (MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST , &fw_reset->reset_flags) || !mlx5_is_reset_now_capable (dev)) { err =mlx5_fw_reset_set_reset_sync_nack (dev); mlx5_core_warn(dev, "PCI Sync FW Update Reset Nack %s",
@@ -419,21 +437,15 @@ static void mlx5_sync_reset_request_event(struct work_struct *work)mlx5_core_warn (dev,"PCI Sync FW Update Reset Ack. Device reset is expected.\n" ); } -static int mlx5_pci_link_toggle (struct mlx5_core_dev *dev) +static int mlx5_pci_link_toggle (struct mlx5_core_dev *dev,u16 dev_id) {struct pci_bus *bridge_bus = dev->pdev->bus;struct pci_dev *bridge = bridge_bus->self;unsigned long timeout;struct pci_dev *sdev; -u16 reg16, dev_id;int cap, err; +u16 reg16; - err =pci_read_config_word (dev->pdev,PCI_DEVICE_ID , &dev_id); -if (err) -return pcibios_err_to_errno (err); - err =mlx5_check_dev_ids (dev, dev_id); -if (err) -return err; cap =pci_find_capability (bridge,PCI_CAP_ID_EXP );if (!cap)return -EOPNOTSUPP ;
@@ -503,6 +515,44 @@ static int mlx5_pci_link_toggle(struct mlx5_core_dev *dev)return err; } +static int mlx5_pci_reset_bus (struct mlx5_core_dev *dev) +{ +if (!MLX5_CAP_GEN (dev, pcie_reset_using_hotreset_method)) +return -EOPNOTSUPP ; + +return pci_reset_bus (dev->pdev); +} + +static int mlx5_sync_pci_reset (struct mlx5_core_dev *dev,u8 reset_method) +{ +u16 dev_id; +int err; + + err =pci_read_config_word (dev->pdev,PCI_DEVICE_ID , &dev_id); +if (err) +return pcibios_err_to_errno (err); + err =mlx5_check_dev_ids (dev, dev_id); +if (err) +return err; + +switch (reset_method) { +case MLX5_MFRL_REG_PCI_RESET_METHOD_LINK_TOGGLE : + err =mlx5_pci_link_toggle (dev, dev_id); +if (err) +mlx5_core_warn (dev,"mlx5_pci_link_toggle failed\n" ); +break ; +case MLX5_MFRL_REG_PCI_RESET_METHOD_HOT_RESET : + err =mlx5_pci_reset_bus (dev); +if (err) +mlx5_core_warn (dev,"mlx5_pci_reset_bus failed\n" ); +break ; +default : +return -EOPNOTSUPP ; + } + +return err; +} +static void mlx5_sync_reset_now_event (struct work_struct *work) { struct mlx5_fw_reset *fw_reset = container_of(work, struct mlx5_fw_reset,
@@ -521,9 +571,9 @@ static void mlx5_sync_reset_now_event(struct work_struct *work) goto done; } - err =mlx5_pci_link_toggle (dev); + err =mlx5_sync_pci_reset (dev, fw_reset->reset_method);if (err) { -mlx5_core_warn (dev,"mlx5_pci_link_toggle failed, no reset done, err %d\n" , err); +mlx5_core_warn (dev,"mlx5_sync_pci_reset failed, no reset done, err %d\n" , err);set_bit (MLX5_FW_RESET_FLAGS_RELOAD_REQUIRED , &fw_reset->reset_flags); }
@@ -585,9 +635,9 @@ static void mlx5_sync_reset_unload_event(struct work_struct *work)mlx5_core_warn (dev,"Sync Reset, got reset action. rst_state = %u\n" , rst_state);if (rst_state ==MLX5_FW_RST_STATE_TOGGLE_REQ ) { - err =mlx5_pci_link_toggle (dev); + err =mlx5_sync_pci_reset (dev, fw_reset->reset_method);if (err) { -mlx5_core_warn (dev,"mlx5_pci_link_toggle failed, err %d\n" , err); +mlx5_core_warn (dev,"mlx5_sync_pci_reset failed, err %d\n" , err); fw_reset->ret = err; } }
drivers/net/ethernet/mellanox/mlx5/core/main.c +3 -0
@@ -627,6 +627,9 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)if (MLX5_CAP_GEN_MAX (dev, pci_sync_for_fw_update_with_driver_unload))MLX5_SET (cmd_hca_cap, set_hca_cap, pci_sync_for_fw_update_with_driver_unload,1 ); +if (MLX5_CAP_GEN_MAX (dev, pcie_reset_using_hotreset_method)) +MLX5_SET (cmd_hca_cap, set_hca_cap, + pcie_reset_using_hotreset_method,1 );if (MLX5_CAP_GEN_MAX (dev, num_vhca_ports)) MLX5_SET(cmd_hca_cap,
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 39/75 net/mlx5: Fix lockdep assertion on sync reset unload event
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Moshe Shemesh <[email protected]>
[ Upstream commit 902a8bc23a24882200f57cadc270e15a2cfaf2bb ]
Fix lockdep assertion triggered during sync reset unload event. When the sync reset flow is initiated using the devlink reload fw_activate option, the PF already holds the devlink lock while handling unload event. In this case, delegate sync reset unload event handling back to the devlink callback process to avoid double-locking and resolve the lockdep warning.
Kernel log:
WARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40 [...] Call Trace: <TASK> mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core] mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core] process_one_work+0x222/0x640 worker_thread+0x199/0x350 kthread+0x10b/0x230 ? __pfx_worker_thread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x8e/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
--- .../net/ethernet/mellanox/mlx5/core/devlink.c | 2 +- .../ethernet/mellanox/mlx5/core/fw_reset.c | 108 ++++++++++-------- .../ethernet/mellanox/mlx5/core/fw_reset.h | 1 + 3 files changed, 63 insertions(+), 48 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/devlink.c +1 -1
@@ -107,7 +107,7 @@ static int mlx5_devlink_reload_fw_activate(struct devlink *devlink, struct netliif (err)return err; -mlx5_unload_one_devl_locked (dev, false); +mlx5_sync_reset_unload_flow (dev, true); err =mlx5_health_wait_pci_up (dev);if (err)NL_SET_ERR_MSG_MOD (extack,"FW activate aborted, PCI reads fail after reset" );
drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c +61 -47
162 lines not on this page · raw message
drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h +1 -0
@@ -12,6 +12,7 @@ int mlx5_fw_reset_set_reset_sync(struct mlx5_core_dev *dev, u8 reset_type_sel,int mlx5_fw_reset_set_live_patch (struct mlx5_core_dev *dev);int mlx5_fw_reset_wait_reset_done (struct mlx5_core_dev *dev); +void mlx5_sync_reset_unload_flow (struct mlx5_core_dev *dev,bool locked);int mlx5_fw_reset_verify_fw_complete (struct mlx5_core_dev *dev,struct netlink_ext_ack *extack);void mlx5_fw_reset_events_start (struct mlx5_core_dev *dev);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 40/75 net/mlx5: Call mlx5_sf_id_erase() once in mlx5_sf_dealloc()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiri Pirko <[email protected]>
[ Upstream commit 2597ee190b4eb48d3b7d35b7bb2cc18046ae087e ]
Before every call of mlx5_sf_dealloc(), there is a call to mlx5_sf_id_erase(). So move it to the beginning of mlx5_sf_dealloc(). Also remove redundant mlx5_sf_id_erase() call from mlx5_sf_free() as it is called only from mlx5_sf_dealloc().
Stable-dep-of: 26e42ec7712d ("net/mlx5: Nack sync reset when SFs are present")
--- drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c +2 -3
@@ -111,7 +111,6 @@ mlx5_sf_alloc(struct mlx5_sf_table *table, struct mlx5_eswitch *esw,static void mlx5_sf_free (struct mlx5_sf_table *table,struct mlx5_sf *sf) { -mlx5_sf_id_erase (table, sf);mlx5_sf_hw_table_sf_free (table->dev, sf->controller, sf->id);trace_mlx5_sf_free (table->dev, sf->port_index, sf->controller, sf->hw_fn_id);kfree (sf);
@@ -361,6 +360,8 @@ int mlx5_devlink_sf_port_new(struct devlink *devlink,static void mlx5_sf_dealloc (struct mlx5_sf_table *table,struct mlx5_sf *sf) { +mlx5_sf_id_erase (table, sf); +if (sf->hw_state ==MLX5_VHCA_STATE_ALLOCATED ) {mlx5_sf_free (table, sf); }else if (mlx5_sf_is_active (sf)) {
@@ -401,7 +402,6 @@ int mlx5_devlink_sf_port_del(struct devlink *devlink, }mlx5_eswitch_unload_sf_vport (esw, sf->hw_fn_id); -mlx5_sf_id_erase (table, sf);mutex_lock (&table->sf_state_lock);mlx5_sf_dealloc (table, sf);
@@ -473,7 +473,6 @@ static void mlx5_sf_deactivate_all(struct mlx5_sf_table *table)*/ xa_for_each (&table->port_indices, index, sf) {mlx5_eswitch_unload_sf_vport (esw, sf->hw_fn_id); -mlx5_sf_id_erase (table, sf);mlx5_sf_dealloc (table, sf); } }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 41/75 net/mlx5: Use devlink port pointer to get the pointer of container SF struct
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiri Pirko <[email protected]>
[ Upstream commit 9caeb1475c3e852bcfa6332227c6bb2feaa8eb23 ]
Benefit from the fact that struct devlink_port is eventually embedded in struct mlx5_sf and use container_of() macro to get it instead of the xarray lookup in every devlink port op.
Stable-dep-of: 26e42ec7712d ("net/mlx5: Nack sync reset when SFs are present")
--- .../ethernet/mellanox/mlx5/core/sf/devlink.c | 44 +++++-------------- 1 file changed, 12 insertions(+), 32 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c +12 -32
@@ -20,6 +20,13 @@ struct mlx5_sf {u16 hw_state; }; +static void *mlx5_sf_by_dl_port (struct devlink_port *dl_port) +{ +struct mlx5_devlink_port *mlx5_dl_port =mlx5_devlink_port_get (dl_port); + + return container_of(mlx5_dl_port, struct mlx5_sf, dl_port); +} +struct mlx5_sf_table {struct mlx5_core_dev *dev;/* To refer from notifier context. */ struct xarray port_indices;/* port index based lookup. */
@@ -30,12 +37,6 @@ struct mlx5_sf_table {struct notifier_block vhca_nb; }; -static struct mlx5_sf * -mlx5_sf_lookup_by_index (struct mlx5_sf_table *table,unsigned int port_index) -{ -return xa_load (&table->port_indices, port_index); -} -static struct mlx5_sf *mlx5_sf_lookup_by_function_id (struct mlx5_sf_table *table,unsigned int fn_id) {
@@ -171,26 +172,19 @@ int mlx5_devlink_sf_port_fn_state_get(struct devlink_port *dl_port, struct netlink_ext_ack *extack) {struct mlx5_core_dev *dev =devlink_priv (dl_port->devlink); +struct mlx5_sf *sf =mlx5_sf_by_dl_port (dl_port);struct mlx5_sf_table *table; -struct mlx5_sf *sf; -int err =0 ; table =mlx5_sf_table_try_get (dev);if (!table)return -EOPNOTSUPP ; - sf =mlx5_sf_lookup_by_index (table, dl_port->index); -if (!sf) { - err = -EOPNOTSUPP ; - goto sf_err; - }mutex_lock (&table->sf_state_lock); *state =mlx5_sf_to_devlink_state (sf->hw_state); *opstate =mlx5_sf_to_devlink_opstate (sf->hw_state);mutex_unlock (&table->sf_state_lock); -sf_err:mlx5_sf_table_put (table); -return err; +return 0 ; } static int mlx5_sf_activate(struct mlx5_core_dev *dev, struct mlx5_sf *sf,
@@ -256,8 +250,8 @@ int mlx5_devlink_sf_port_fn_state_set(struct devlink_port *dl_port, struct netlink_ext_ack *extack) {struct mlx5_core_dev *dev =devlink_priv (dl_port->devlink); +struct mlx5_sf *sf =mlx5_sf_by_dl_port (dl_port);struct mlx5_sf_table *table; -struct mlx5_sf *sf;int err; table =mlx5_sf_table_try_get (dev);
@@ -266,14 +260,7 @@ int mlx5_devlink_sf_port_fn_state_set(struct devlink_port *dl_port, "Port state set is only supported in eswitch switchdev mode or SF ports are disabled.");return -EOPNOTSUPP ; } - sf =mlx5_sf_lookup_by_index (table, dl_port->index); -if (!sf) { - err = -ENODEV ; - goto out; - } - err =mlx5_sf_state_set (dev, table, sf, state, extack); -out:mlx5_sf_table_put (table);return err; }
@@ -384,10 +371,9 @@ int mlx5_devlink_sf_port_del(struct devlink *devlink, struct netlink_ext_ack *extack) {struct mlx5_core_dev *dev =devlink_priv (devlink); +struct mlx5_sf *sf =mlx5_sf_by_dl_port (dl_port);struct mlx5_eswitch *esw = dev->priv.eswitch;struct mlx5_sf_table *table; -struct mlx5_sf *sf; -int err =0 ; table =mlx5_sf_table_try_get (dev);if (!table) {
@@ -395,20 +381,14 @@ int mlx5_devlink_sf_port_del(struct devlink *devlink, "Port del is only supported in eswitch switchdev mode or SF ports are disabled.");return -EOPNOTSUPP ; } - sf =mlx5_sf_lookup_by_index (table, dl_port->index); -if (!sf) { - err = -ENODEV ; - goto sf_err; - }mlx5_eswitch_unload_sf_vport (esw, sf->hw_fn_id);mutex_lock (&table->sf_state_lock);mlx5_sf_dealloc (table, sf);mutex_unlock (&table->sf_state_lock); -sf_err:mlx5_sf_table_put (table); -return err; +return 0 ; }static bool mlx5_sf_state_update_check (const struct mlx5_sf *sf,u8 new_state)
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 42/75 net/mlx5: Convert SF port_indices xarray to function_ids xarray
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiri Pirko <[email protected]>
[ Upstream commit 2284a4836251b3dee348172f69ac84157aa7b03e ]
No need to lookup for sf by a port index. Convert the xarray to have function id as an index and optimize the remaining function id based lookup.
Stable-dep-of: 26e42ec7712d ("net/mlx5: Nack sync reset when SFs are present")
--- .../ethernet/mellanox/mlx5/core/sf/devlink.c | 29 +++++++------------ 1 file changed, 11 insertions(+), 18 deletions(-)
drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c +11 -18
@@ -29,7 +29,7 @@ static void *mlx5_sf_by_dl_port(struct devlink_port *dl_port)struct mlx5_sf_table {struct mlx5_core_dev *dev;/* To refer from notifier context. */ -struct xarray port_indices;/* port index based lookup. */ +struct xarray function_ids;/* function id based lookup. */ refcount_t refcount;struct completion disable_complete;struct mutex sf_state_lock;/* Serializes sf state among user cmds & vhca event handler. */
@@ -40,24 +40,17 @@ struct mlx5_sf_table {static struct mlx5_sf *mlx5_sf_lookup_by_function_id (struct mlx5_sf_table *table,unsigned int fn_id) { -unsigned long index; -struct mlx5_sf *sf; - -xa_for_each (&table->port_indices, index, sf) { -if (sf->hw_fn_id == fn_id) -return sf; - } -return NULL ; +return xa_load (&table->function_ids, fn_id); } -static int mlx5_sf_id_insert (struct mlx5_sf_table *table,struct mlx5_sf *sf) +static int mlx5_sf_function_id_insert (struct mlx5_sf_table *table,struct mlx5_sf *sf) { -return xa_insert (&table->port_indices, sf->port_index, sf,GFP_KERNEL ); +return xa_insert (&table->function_ids, sf->hw_fn_id, sf,GFP_KERNEL ); } -static void mlx5_sf_id_erase (struct mlx5_sf_table *table,struct mlx5_sf *sf) +static void mlx5_sf_function_id_erase (struct mlx5_sf_table *table,struct mlx5_sf *sf) { -xa_erase (&table->port_indices, sf->port_index); +xa_erase (&table->function_ids, sf->hw_fn_id); } static struct mlx5_sf *
@@ -94,7 +87,7 @@ mlx5_sf_alloc(struct mlx5_sf_table *table, struct mlx5_eswitch *esw, sf->hw_state =MLX5_VHCA_STATE_ALLOCATED ; sf->controller = controller; - err =mlx5_sf_id_insert (table, sf); + err =mlx5_sf_function_id_insert (table, sf);if (err) goto insert_err;
@@ -347,7 +340,7 @@ int mlx5_devlink_sf_port_new(struct devlink *devlink,static void mlx5_sf_dealloc (struct mlx5_sf_table *table,struct mlx5_sf *sf) { -mlx5_sf_id_erase (table, sf); +mlx5_sf_function_id_erase (table, sf);if (sf->hw_state ==MLX5_VHCA_STATE_ALLOCATED ) {mlx5_sf_free (table, sf);
@@ -451,7 +444,7 @@ static void mlx5_sf_deactivate_all(struct mlx5_sf_table *table)/* At this point, no new user commands can start and no vhca event can * arrive. It is safe to destroy all user created SFs. */ -xa_for_each (&table->port_indices, index, sf) { +xa_for_each (&table->function_ids, index, sf) {mlx5_eswitch_unload_sf_vport (esw, sf->hw_fn_id);mlx5_sf_dealloc (table, sf); }
@@ -510,7 +503,7 @@ int mlx5_sf_table_init(struct mlx5_core_dev *dev)mutex_init (&table->sf_state_lock); table->dev = dev; -xa_init (&table->port_indices); +xa_init (&table->function_ids); dev->priv.sf_table = table;refcount_set (&table->refcount,0 ); table->esw_nb.notifier_call = mlx5_sf_esw_event;
@@ -545,6 +538,6 @@ void mlx5_sf_table_cleanup(struct mlx5_core_dev *dev)mlx5_esw_event_notifier_unregister (dev->priv.eswitch, &table->esw_nb);WARN_ON (refcount_read (&table->refcount));mutex_destroy (&table->sf_state_lock); -WARN_ON (!xa_empty (&table->port_indices)); +WARN_ON (!xa_empty (&table->function_ids));kfree (table); }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 43/75 net/mlx5: Nack sync reset when SFs are present
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Moshe Shemesh <[email protected]>
[ Upstream commit 26e42ec7712d392d561964514b1f253b1a96f42d ]
If PF (Physical Function) has SFs (Sub-Functions), since the SFs are not taking part in the synchronization flow, sync reset can lead to fatal error on the SFs, as the function will be closed unexpectedly from the SF point of view.
Add a check to prevent sync reset when there are SFs on a PF device which is not ECPF, as ECPF is teardowned gracefully before reset.
--- drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 6 ++++++ drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c | 10 ++++++++++ drivers/net/ethernet/mellanox/mlx5/core/sf/sf.h | 6 ++++++ 3 files changed, 22 insertions(+)
drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c +6 -0
@@ -6,6 +6,7 @@#include "fw_reset.h" #include "diag/fw_tracer.h" #include "lib/tout.h" +#include "sf/sf.h" enum {MLX5_FW_RESET_FLAGS_RESET_REQUESTED ,
@@ -397,6 +398,11 @@ static bool mlx5_is_reset_now_capable(struct mlx5_core_dev *dev)return false; } +if (!mlx5_core_is_ecpf (dev) && !mlx5_sf_table_empty (dev)) { +mlx5_core_warn (dev,"SFs should be removed before reset\n" ); +return false; + } +#if IS_ENABLED (CONFIG_HOTPLUG_PCI_PCIE ) err =mlx5_check_hotplug_interrupt (dev);if (err)
drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c +10 -0
@@ -541,3 +541,13 @@ void mlx5_sf_table_cleanup(struct mlx5_core_dev *dev)WARN_ON (!xa_empty (&table->function_ids));kfree (table); } + +bool mlx5_sf_table_empty (const struct mlx5_core_dev *dev) +{ +struct mlx5_sf_table *table = dev->priv.sf_table; + +if (!table) +return true; + +return xa_empty (&table->function_ids); +}
drivers/net/ethernet/mellanox/mlx5/core/sf/sf.h +6 -0
@@ -17,6 +17,7 @@ void mlx5_sf_hw_table_destroy(struct mlx5_core_dev *dev);int mlx5_sf_table_init (struct mlx5_core_dev *dev);void mlx5_sf_table_cleanup (struct mlx5_core_dev *dev); +bool mlx5_sf_table_empty (const struct mlx5_core_dev *dev); int mlx5_devlink_sf_port_new(struct devlink *devlink, const struct devlink_port_new_attrs *add_attr,
@@ -61,6 +62,11 @@ static inline void mlx5_sf_table_cleanup(struct mlx5_core_dev *dev) { } +static inline bool mlx5_sf_table_empty (const struct mlx5_core_dev *dev) +{ +return true; +} +#endif #endif
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 44/75 net/mlx5e: Update and set Xon/Xoff upon MTU set
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexei Lazar <[email protected]>
[ Upstream commit ceddedc969f0532b7c62ca971ee50d519d2bc0cb ]
Xon/Xoff sizes are derived from calculation that include the MTU size. Set Xon/Xoff when MTU is set.
If Xon/Xoff fails, set the previous MTU.
--- .../mellanox/mlx5/core/en/port_buffer.h | 12 ++++++++++++ .../net/ethernet/mellanox/mlx5/core/en_main.c | 17 ++++++++++++++++- 2 files changed, 28 insertions(+), 1 deletion(-)
drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.h +12 -0
@@ -66,11 +66,23 @@ struct mlx5e_port_buffer {struct mlx5e_bufferx_reg buffer[MLX5E_MAX_NETWORK_BUFFER ]; }; +#ifdef CONFIG_MLX5_CORE_EN_DCB int mlx5e_port_manual_buffer_config (struct mlx5e_priv *priv,u32 change,unsigned int mtu,struct ieee_pfc *pfc,u32 *buffer_size,u8 *prio2buffer); +#else +static inline int +mlx5e_port_manual_buffer_config (struct mlx5e_priv *priv, +u32 change,unsigned int mtu, +void *pfc, +u32 *buffer_size, +u8 *prio2buffer) +{ +return 0 ; +} +#endif int mlx5e_port_query_buffer (struct mlx5e_priv *priv,struct mlx5e_port_buffer *port_buffer);
drivers/net/ethernet/mellanox/mlx5/core/en_main.c +16 -1
@@ -44,6 +44,7 @@#include "eswitch.h" #include "en.h" #include "en/txrx.h" +#include "en/port_buffer.h" #include "en_tc.h" #include "en_rep.h" #include "en_accel/ipsec.h"
@@ -2722,9 +2723,11 @@ int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv)struct mlx5e_params *params = &priv->channels.params;struct net_device *netdev = priv->netdev;struct mlx5_core_dev *mdev = priv->mdev; -u16 mtu; +u16 mtu, prev_mtu;int err; +mlx5e_query_mtu (mdev, params, &prev_mtu); + err =mlx5e_set_mtu (mdev, params, params->sw_mtu);if (err)return err;
@@ -2734,6 +2737,18 @@ int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv)netdev_warn (netdev,"%s: VPort MTU %d is different than netdev mtu %d\n" , __func__, mtu, params->sw_mtu); +if (mtu != prev_mtu &&MLX5_BUFFER_SUPPORTED (mdev)) { + err =mlx5e_port_manual_buffer_config (priv,0 , mtu, +NULL ,NULL ,NULL ); +if (err) { +netdev_warn (netdev,"%s: Failed to set Xon/Xoff values with MTU %d (err %d), setting back to previous MTU %d\n" , + __func__, mtu, err, prev_mtu); + +mlx5e_set_mtu (mdev, params, prev_mtu); +return err; + } + } + params->sw_mtu = mtu;return 0 ; }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 45/75 net/mlx5e: Update and set Xon/Xoff upon port speed set
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexei Lazar <[email protected]>
[ Upstream commit d24341740fe48add8a227a753e68b6eedf4b385a ]
Xon/Xoff sizes are derived from calculations that include the port speed.
These settings need to be updated and applied whenever the port speed is changed.
The port speed is typically set after the physical link goes down and is negotiated as part of the link-up process between the two connected interfaces.
Xon/Xoff parameters being updated at the point where the new negotiated speed is established.
--- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 ++ 1 file changed, 2 insertions(+)
drivers/net/ethernet/mellanox/mlx5/core/en_main.c +2 -0
@@ -109,6 +109,8 @@ void mlx5e_update_carrier(struct mlx5e_priv *priv)if (up) {netdev_info (priv->netdev,"Link up\n" );netif_carrier_on (priv->netdev); +mlx5e_port_manual_buffer_config (priv,0 , priv->netdev->mtu, +NULL ,NULL ,NULL ); }else {netdev_info (priv->netdev,"Link down\n" );netif_carrier_off (priv->netdev);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 46/75 net/mlx5e: Set local Xoff after FW update
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexei Lazar <[email protected]>
[ Upstream commit aca0c31af61e0d5cf1675a0cbd29460b95ae693c ]
The local Xoff value is being set before the firmware (FW) update. In case of a failure where the FW is not updated with the new value, there is no fallback to the previous value.
Update the local Xoff value after the FW has been successfully set.
--- drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c +2 -1
@@ -575,7 +575,6 @@ int mlx5e_port_manual_buffer_config(struct mlx5e_priv *priv,if (err)return err; } - priv->dcbx.xoff = xoff;/* Apply the settings */ if (update_buffer) {
@@ -584,6 +583,8 @@ int mlx5e_port_manual_buffer_config(struct mlx5e_priv *priv,return err; } + priv->dcbx.xoff = xoff; +if (update_prio2buffer) err =mlx5e_port_set_priority2buffer (priv->mdev, prio2buffer);
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 47/75 net: stmmac: xgmac: Do not enable RX FIFO Overflow interrupts
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rohan G Thomas <[email protected]>
[ Upstream commit 4f23382841e67174211271a454811dd17c0ef3c5 ]
Enabling RX FIFO Overflow interrupts is counterproductive and causes an interrupt storm when RX FIFO overflows. Disabling this interrupt has no side effect and eliminates interrupt storms when the RX FIFO overflows.
Commit 8a7cb245cf28 ("net: stmmac: Do not enable RX FIFO overflow interrupts") disables RX FIFO overflow interrupts for DWMAC4 IP and removes the corresponding handling of this interrupt. This patch is doing the same thing for XGMAC IP.
--- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 4 ---- 1 file changed, 4 deletions(-)
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +0 -4
@@ -203,10 +203,6 @@ static void dwxgmac2_dma_rx_mode(struct stmmac_priv *priv, void __iomem *ioaddr, }writel (value, ioaddr +XGMAC_MTL_RXQ_OPMODE (channel)); - -/* Enable MTL RX overflow */ - value =readl (ioaddr +XGMAC_MTL_QINTEN (channel)); -writel (value |XGMAC_RXOIE , ioaddr +XGMAC_MTL_QINTEN (channel)); } static void dwxgmac2_dma_tx_mode(struct stmmac_priv *priv, void __iomem *ioaddr,
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 48/75 net: stmmac: Rename phylink_get_caps() callback to update_caps()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Serge Semin <[email protected]>
[ Upstream commit dc144baeb4fbfa0d91ce9c3875307566f58704ec ]
Since recent commits the stmmac_ops::phylink_get_caps() callback has no longer been responsible for the phylink MAC capabilities getting, but merely updates the MAC capabilities in the mac_device_info::link::caps field. Rename the callback to comply with the what the method does now.
Stable-dep-of: 42ef11b2bff5 ("net: stmmac: xgmac: Correct supported speed modes")
--- drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/hwif.h | 8 ++++---- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++--- 3 files changed, 11 insertions(+), 11 deletions(-)
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +4 -4
@@ -69,7 +69,7 @@ static void dwmac4_core_init(struct mac_device_info *hw,init_waitqueue_head (&priv->tstamp_busy_wait); } -static void dwmac4_phylink_get_caps (struct stmmac_priv *priv) +static void dwmac4_update_caps (struct stmmac_priv *priv) {if (priv->plat->tx_queues_to_use >1 ) priv->hw->link.caps &= ~(MAC_10HD |MAC_100HD |MAC_1000HD );
@@ -1161,7 +1161,7 @@ static int dwmac4_config_l4_filter(struct mac_device_info *hw, u32 filter_no,const struct stmmac_ops dwmac4_ops = { .core_init = dwmac4_core_init, - .phylink_get_caps = dwmac4_phylink_get_caps, + .update_caps = dwmac4_update_caps, .set_mac = stmmac_set_mac, .rx_ipc = dwmac4_rx_ipc_enable, .rx_queue_enable = dwmac4_rx_queue_enable,
@@ -1204,7 +1204,7 @@ const struct stmmac_ops dwmac4_ops = {const struct stmmac_ops dwmac410_ops = { .core_init = dwmac4_core_init, - .phylink_get_caps = dwmac4_phylink_get_caps, + .update_caps = dwmac4_update_caps, .set_mac = stmmac_dwmac4_set_mac, .rx_ipc = dwmac4_rx_ipc_enable, .rx_queue_enable = dwmac4_rx_queue_enable,
@@ -1253,7 +1253,7 @@ const struct stmmac_ops dwmac410_ops = {const struct stmmac_ops dwmac510_ops = { .core_init = dwmac4_core_init, - .phylink_get_caps = dwmac4_phylink_get_caps, + .update_caps = dwmac4_update_caps, .set_mac = stmmac_dwmac4_set_mac, .rx_ipc = dwmac4_rx_ipc_enable, .rx_queue_enable = dwmac4_rx_queue_enable,
drivers/net/ethernet/stmicro/stmmac/hwif.h +4 -4
@@ -300,8 +300,8 @@ struct stmmac_est;struct stmmac_ops {/* MAC core initialization */ void (*core_init)(struct mac_device_info *hw,struct net_device *dev); -/* Get phylink capabilities */ -void (*phylink_get_caps)(struct stmmac_priv *priv); +/* Update MAC capabilities */ +void (*update_caps)(struct stmmac_priv *priv);/* Enable the MAC RX/TX */ void (*set_mac)(void __iomem *ioaddr,bool enable);/* Enable and verify that the IPC module is supported */
@@ -423,8 +423,8 @@ struct stmmac_ops { #define stmmac_core_init(__priv, __args...) \ stmmac_do_void_callback(__priv, mac, core_init, __args) -#define stmmac_mac_phylink_get_caps (__priv) \ - stmmac_do_void_callback(__priv, mac, phylink_get_caps, __priv) +#define stmmac_mac_update_caps (__priv) \ + stmmac_do_void_callback(__priv, mac, update_caps, __priv) #define stmmac_mac_set(__priv, __args...) \ stmmac_do_void_callback(__priv, mac, set_mac, __args) #define stmmac_rx_ipc(__priv, __args...) \
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +3 -3
@@ -1230,8 +1230,8 @@ static int stmmac_phy_setup(struct stmmac_priv *priv)xpcs_get_interfaces (priv->hw->xpcs, priv->phylink_config.supported_interfaces); -/* Get the MAC specific capabilities */ -stmmac_mac_phylink_get_caps (priv); +/* Refresh the MAC-specific capabilities */ +stmmac_mac_update_caps (priv); priv->phylink_config.mac_capabilities = priv->hw->link.caps;
@@ -7232,7 +7232,7 @@ int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt) priv->rss.table[i] =ethtool_rxfh_indir_default (i, rx_cnt); -stmmac_mac_phylink_get_caps (priv); +stmmac_mac_update_caps (priv); priv->phylink_config.mac_capabilities = priv->hw->link.caps;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 49/75 net: stmmac: xgmac: Correct supported speed modes
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rohan G Thomas <[email protected]>
[ Upstream commit 42ef11b2bff5b6a2910c28d2ea47cc00e0fbcaec ]
Correct supported speed modes as per the XGMAC databook. Commit 9cb54af214a7 ("net: stmmac: Fix IP-cores specific MAC capabilities") removes support for 10M, 100M and 1000HD. 1000HD is not supported by XGMAC IP, but it does support 10M and 100M FD mode for XGMAC version >= 2_20, and it also supports 10M and 100M HD mode if the HDSEL bit is set in the MAC_HW_FEATURE0 reg. This commit enables support for 10M and 100M speed modes for XGMAC IP based on XGMAC version and MAC capabilities.
--- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 13 +++++++++++-- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 5 +++++ 2 files changed, 16 insertions(+), 2 deletions(-)
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c +11 -2
@@ -47,6 +47,14 @@ static void dwxgmac2_core_init(struct mac_device_info *hw,writel (XGMAC_INT_DEFAULT_EN , ioaddr +XGMAC_INT_EN ); } +static void dwxgmac2_update_caps (struct stmmac_priv *priv) +{ +if (!priv->dma_cap.mbps_10_100) + priv->hw->link.caps &= ~(MAC_10 |MAC_100 ); +else if (!priv->dma_cap.half_duplex) + priv->hw->link.caps &= ~(MAC_10HD |MAC_100HD ); +} +static void dwxgmac2_set_mac (void __iomem *ioaddr,bool enable) {u32 tx =readl (ioaddr +XGMAC_TX_CONFIG );
@@ -1583,6 +1591,7 @@ static void dwxgmac3_fpe_configure(void __iomem *ioaddr, struct stmmac_fpe_cfg *const struct stmmac_ops dwxgmac210_ops = { .core_init = dwxgmac2_core_init, + .update_caps = dwxgmac2_update_caps, .set_mac = dwxgmac2_set_mac, .rx_ipc = dwxgmac2_rx_ipc, .rx_queue_enable = dwxgmac2_rx_queue_enable,
@@ -1705,8 +1714,8 @@ int dwxgmac2_setup(struct stmmac_priv *priv) mac->mcast_bits_log2 =ilog2 (mac->multicast_filter_bins); mac->link.caps =MAC_ASYM_PAUSE |MAC_SYM_PAUSE | -MAC_1000FD |MAC_2500FD |MAC_5000FD | -MAC_10000FD ; +MAC_10 |MAC_100 |MAC_1000FD | +MAC_2500FD |MAC_5000FD |MAC_10000FD ; mac->link.duplex =0 ; mac->link.speed10 =XGMAC_CONFIG_SS_10_MII ; mac->link.speed100 =XGMAC_CONFIG_SS_100_MII ;
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +5 -0
@@ -382,8 +382,11 @@ static int dwxgmac2_dma_interrupt(struct stmmac_priv *priv,static int dwxgmac2_get_hw_feature (void __iomem *ioaddr,struct dma_features *dma_cap) { +struct stmmac_priv *priv;u32 hw_cap; + priv = container_of(dma_cap, struct stmmac_priv, dma_cap); +/* MAC HW feature 0 */ hw_cap =readl (ioaddr +XGMAC_HW_FEATURE0 ); dma_cap->edma = (hw_cap &XGMAC_HWFEAT_EDMA ) >>31 ;
@@ -406,6 +409,8 @@ static int dwxgmac2_get_hw_feature(void __iomem *ioaddr, dma_cap->vlhash = (hw_cap &XGMAC_HWFEAT_VLHASH ) >>4 ; dma_cap->half_duplex = (hw_cap &XGMAC_HWFEAT_HDSEL ) >>3 ; dma_cap->mbps_1000 = (hw_cap &XGMAC_HWFEAT_GMIISEL ) >>1 ; +if (dma_cap->mbps_1000 && priv->synopsys_id >=DWXGMAC_CORE_2_20 ) + dma_cap->mbps_10_100 =1 ;/* MAC HW feature 1 */ hw_cap =readl (ioaddr +XGMAC_HW_FEATURE1 );
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 50/75 net: stmmac: Set CIC bit only for TX queues with COE
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rohan G Thomas <[email protected]>
[ Upstream commit b1eded580ab28119de0b0f21efe37ee2b4419144 ]
Currently, in the AF_XDP transmit paths, the CIC bit of TX Desc3 is set for all packets. Setting this bit for packets transmitting through queues that don't support checksum offloading causes the TX DMA to get stuck after transmitting some packets. This patch ensures the CIC bit of TX Desc3 is set only if the TX queue supports checksum offloading.
--- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +4 -2
@@ -2426,6 +2426,7 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget)struct netdev_queue *nq =netdev_get_tx_queue (priv->dev, queue);struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];struct stmmac_txq_stats *txq_stats = &priv->xstats.txq_stats[queue]; +bool csum = !priv->plat->tx_queues_cfg[queue].coe_unsupported;struct xsk_buff_pool *pool = tx_q->xsk_pool;unsigned int entry = tx_q->cur_tx;struct dma_desc *tx_desc =NULL ;
@@ -2496,7 +2497,7 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) }stmmac_prepare_tx_desc (priv, tx_desc,1 , xdp_desc.len, - true, priv->mode, true, true, + csum, priv->mode, true, true, xdp_desc.len);stmmac_enable_dma_transmission (priv, priv->ioaddr);
@@ -4789,6 +4790,7 @@ static int stmmac_xdp_xmit_xdpf(struct stmmac_priv *priv, int queue, {struct stmmac_txq_stats *txq_stats = &priv->xstats.txq_stats[queue];struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue]; +bool csum = !priv->plat->tx_queues_cfg[queue].coe_unsupported;unsigned int entry = tx_q->cur_tx;struct dma_desc *tx_desc;dma_addr_t dma_addr;
@@ -4833,7 +4835,7 @@ static int stmmac_xdp_xmit_xdpf(struct stmmac_priv *priv, int queue,stmmac_set_desc_addr (priv, tx_desc, dma_addr);stmmac_prepare_tx_desc (priv, tx_desc,1 , xdpf->len, - true, priv->mode, true, true, + csum, priv->mode, true, true, xdpf->len); tx_q->tx_count_frames++;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 51/75 net: rose: split remove and free operations in rose_remove_neigh()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takamitsu Iwai <[email protected]>
[ Upstream commit dcb34659028f856c423a29ef9b4e2571d203444d ]
The current rose_remove_neigh() performs two distinct operations:
1. Removes rose_neigh from rose_neigh_list
2. Frees the rose_neigh structure
Split these operations into separate functions to improve maintainability and prepare for upcoming refcount_t conversion. The timer cleanup remains in rose_remove_neigh() because free operations can be called from timer itself.
This patch introduce rose_neigh_put() to handle the freeing of rose_neigh structures and modify rose_remove_neigh() to handle removal only.
Stable-dep-of: d860d1faa6b2 ("net: rose: convert 'use' field to refcount_t")
--- include/net/rose.h | 8 ++++++++ net/rose/rose_route.c | 15 ++++++--------- 2 files changed, 14 insertions(+), 9 deletions(-)
include/net/rose.h +8 -0
@@ -151,6 +151,14 @@ struct rose_sock {#define rose_sk (sk) ((struct rose_sock *)(sk)) +static inline void rose_neigh_put (struct rose_neigh *rose_neigh) +{ +if (rose_neigh->ax25) +ax25_cb_put (rose_neigh->ax25); +kfree (rose_neigh->digipeat); +kfree (rose_neigh); +} +/* af_rose.c */ extern ax25_address rose_callsign;extern int sysctl_rose_restart_request_timeout;
net/rose/rose_route.c +6 -9
@@ -234,20 +234,12 @@ static void rose_remove_neigh(struct rose_neigh *rose_neigh)if ((s = rose_neigh_list) == rose_neigh) { rose_neigh_list = rose_neigh->next; -if (rose_neigh->ax25) -ax25_cb_put (rose_neigh->ax25); -kfree (rose_neigh->digipeat); -kfree (rose_neigh);return ; }while (s !=NULL && s->next !=NULL ) {if (s->next == rose_neigh) { s->next = rose_neigh->next; -if (rose_neigh->ax25) -ax25_cb_put (rose_neigh->ax25); -kfree (rose_neigh->digipeat); -kfree (rose_neigh);return ; }
@@ -331,8 +323,10 @@ static int rose_del_node(struct rose_route_struct *rose_route,if (rose_node->neighbour[i] == rose_neigh) { rose_neigh->count--; -if (rose_neigh->count ==0 && rose_neigh->use ==0 ) +if (rose_neigh->count ==0 && rose_neigh->use ==0 ) {rose_remove_neigh (rose_neigh); +rose_neigh_put (rose_neigh); + } rose_node->count--;
@@ -513,6 +507,7 @@ void rose_rt_device_down(struct net_device *dev) }rose_remove_neigh (s); +rose_neigh_put (s); }spin_unlock_bh (&rose_neigh_list_lock);spin_unlock_bh (&rose_node_list_lock);
@@ -569,6 +564,7 @@ static int rose_clear_routes(void)if (s->use ==0 && !s->loopback) { s->count =0 ;rose_remove_neigh (s); +rose_neigh_put (s); } }
@@ -1301,6 +1297,7 @@ void __exit rose_rt_free(void) rose_neigh = rose_neigh->next;rose_remove_neigh (s); +rose_neigh_put (s); }while (rose_node !=NULL ) {
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 52/75 net: rose: convert use field to refcount_t
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takamitsu Iwai <[email protected]>
[ Upstream commit d860d1faa6b2ce3becfdb8b0c2b048ad31800061 ]
The 'use' field in struct rose_neigh is used as a reference counter but lacks atomicity. This can lead to race conditions where a rose_neigh structure is freed while still being referenced by other code paths.
For example, when rose_neigh->use becomes zero during an ioctl operation via rose_rt_ioctl(), the structure may be removed while its timer is still active, potentially causing use-after-free issues.
This patch changes the type of 'use' from unsigned short to refcount_t and updates all code paths to use rose_neigh_hold() and rose_neigh_put() which operate reference counts atomically.
--- include/net/rose.h | 18 +++++++++++++----- net/rose/af_rose.c | 13 +++++++------ net/rose/rose_in.c | 12 ++++++------ net/rose/rose_route.c | 33 ++++++++++++++++++--------------- net/rose/rose_timer.c | 2 +- 5 files changed, 45 insertions(+), 33 deletions(-)
include/net/rose.h +13 -5
@@ -8,6 +8,7 @@#ifndef _ROSE_H#define _ROSE_H +#include <linux/refcount.h>#include <linux/rose.h> #include <net/ax25.h> #include <net/sock.h>
@@ -96,7 +97,7 @@ struct rose_neigh {ax25_cb *ax25;struct net_device *dev;unsigned short count; -unsigned short use; +refcount_t use;unsigned int number;char restarted;char dce_mode;
@@ -151,12 +152,19 @@ struct rose_sock {#define rose_sk (sk) ((struct rose_sock *)(sk)) +static inline void rose_neigh_hold (struct rose_neigh *rose_neigh) +{ +refcount_inc (&rose_neigh->use); +} +static inline void rose_neigh_put (struct rose_neigh *rose_neigh) { -if (rose_neigh->ax25) -ax25_cb_put (rose_neigh->ax25); -kfree (rose_neigh->digipeat); -kfree (rose_neigh); +if (refcount_dec_and_test (&rose_neigh->use)) { +if (rose_neigh->ax25) +ax25_cb_put (rose_neigh->ax25); +kfree (rose_neigh->digipeat); +kfree (rose_neigh); + } }/* af_rose.c */
net/rose/af_rose.c +7 -6
@@ -170,7 +170,7 @@ void rose_kill_by_neigh(struct rose_neigh *neigh)if (rose->neighbour == neigh) {rose_disconnect (s,ENETUNREACH ,ROSE_OUT_OF_ORDER ,0 ); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour); rose->neighbour =NULL ; } }
@@ -212,7 +212,7 @@ static void rose_kill_by_device(struct net_device *dev)if (rose->device == dev) {rose_disconnect (sk,ENETUNREACH ,ROSE_OUT_OF_ORDER ,0 );if (rose->neighbour) - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);netdev_put (rose->device, &rose->dev_tracker); rose->device =NULL ; }
@@ -655,7 +655,7 @@ static int rose_release(struct socket *sock)break ;case ROSE_STATE_2 : - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);release_sock (sk);rose_disconnect (sk,0 ,-1 ,-1 );lock_sock (sk);
@@ -823,6 +823,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le rose->lci =rose_new_lci (rose->neighbour);if (!rose->lci) { err = -ENETUNREACH ; +rose_neigh_put (rose->neighbour); goto out_release; }
@@ -834,12 +835,14 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le dev =rose_dev_first ();if (!dev) { err = -ENETUNREACH ; +rose_neigh_put (rose->neighbour); goto out_release; } user =ax25_findbyuid (current_euid ());if (!user) { err = -EINVAL ; +rose_neigh_put (rose->neighbour);dev_put (dev); goto out_release; }
@@ -874,8 +877,6 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le rose->state =ROSE_STATE_1 ; - rose->neighbour->use++; -rose_write_internal (sk,ROSE_CALL_REQUEST );rose_start_heartbeat (sk);rose_start_t1timer (sk);
@@ -1077,7 +1078,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros GFP_ATOMIC); make_rose->facilities = facilities; - make_rose->neighbour->use++; +rose_neigh_hold (make_rose->neighbour);if (rose_sk (sk)->defer) { make_rose->state =ROSE_STATE_5 ;
net/rose/rose_in.c +6 -6
@@ -56,7 +56,7 @@ static int rose_state1_machine(struct sock *sk, struct sk_buff *skb, int frametycase ROSE_CLEAR_REQUEST :rose_write_internal (sk,ROSE_CLEAR_CONFIRMATION );rose_disconnect (sk,ECONNREFUSED , skb->data[3 ], skb->data[4 ]); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);break ;default :
@@ -79,12 +79,12 @@ static int rose_state2_machine(struct sock *sk, struct sk_buff *skb, int frametycase ROSE_CLEAR_REQUEST :rose_write_internal (sk,ROSE_CLEAR_CONFIRMATION );rose_disconnect (sk,0 , skb->data[3 ], skb->data[4 ]); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);break ;case ROSE_CLEAR_CONFIRMATION :rose_disconnect (sk,0 ,-1 ,-1 ); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);break ;default :
@@ -120,7 +120,7 @@ static int rose_state3_machine(struct sock *sk, struct sk_buff *skb, int frametycase ROSE_CLEAR_REQUEST :rose_write_internal (sk,ROSE_CLEAR_CONFIRMATION );rose_disconnect (sk,0 , skb->data[3 ], skb->data[4 ]); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);break ;case ROSE_RR :
@@ -233,7 +233,7 @@ static int rose_state4_machine(struct sock *sk, struct sk_buff *skb, int frametycase ROSE_CLEAR_REQUEST :rose_write_internal (sk,ROSE_CLEAR_CONFIRMATION );rose_disconnect (sk,0 , skb->data[3 ], skb->data[4 ]); - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);break ;default :
@@ -253,7 +253,7 @@ static int rose_state5_machine(struct sock *sk, struct sk_buff *skb, int frametyif (frametype ==ROSE_CLEAR_REQUEST ) {rose_write_internal (sk,ROSE_CLEAR_CONFIRMATION );rose_disconnect (sk,0 , skb->data[3 ], skb->data[4 ]); -rose_sk (sk)->neighbour->use--; +rose_neigh_put (rose_sk (sk)->neighbour); }return 0 ;
net/rose/rose_route.c +18 -15
@@ -93,11 +93,11 @@ static int __must_check rose_add_node(struct rose_route_struct *rose_route, rose_neigh->ax25 =NULL ; rose_neigh->dev = dev; rose_neigh->count =0 ; - rose_neigh->use =0 ; rose_neigh->dce_mode =0 ; rose_neigh->loopback =0 ; rose_neigh->number = rose_neigh_no++; rose_neigh->restarted =0 ; +refcount_set (&rose_neigh->use,1 );skb_queue_head_init (&rose_neigh->queue);
@@ -255,10 +255,10 @@ static void rose_remove_route(struct rose_route *rose_route)struct rose_route *s;if (rose_route->neigh1 !=NULL ) - rose_route->neigh1->use--; +rose_neigh_put (rose_route->neigh1);if (rose_route->neigh2 !=NULL ) - rose_route->neigh2->use--; +rose_neigh_put (rose_route->neigh2);if ((s = rose_route_list) == rose_route) { rose_route_list = rose_route->next;
@@ -323,7 +323,7 @@ static int rose_del_node(struct rose_route_struct *rose_route,if (rose_node->neighbour[i] == rose_neigh) { rose_neigh->count--; -if (rose_neigh->count ==0 && rose_neigh->use ==0 ) { +if (rose_neigh->count ==0 ) {rose_remove_neigh (rose_neigh);rose_neigh_put (rose_neigh); }
@@ -375,11 +375,11 @@ void rose_add_loopback_neigh(void) sn->ax25 =NULL ; sn->dev =NULL ; sn->count =0 ; - sn->use =0 ; sn->dce_mode =1 ; sn->loopback =1 ; sn->number = rose_neigh_no++; sn->restarted =1 ; +refcount_set (&sn->use,1 );skb_queue_head_init (&sn->queue);
@@ -561,8 +561,7 @@ static int rose_clear_routes(void) s = rose_neigh; rose_neigh = rose_neigh->next; -if (s->use ==0 && !s->loopback) { - s->count =0 ; +if (!s->loopback) {rose_remove_neigh (s);rose_neigh_put (s); }
@@ -680,6 +679,7 @@ struct rose_neigh *rose_get_neigh(rose_address *addr, unsigned char *cause,for (i =0 ; i < node->count; i++) {if (node->neighbour[i]->restarted) { res = node->neighbour[i]; +rose_neigh_hold (node->neighbour[i]); goto out; } }
@@ -691,6 +691,7 @@ struct rose_neigh *rose_get_neigh(rose_address *addr, unsigned char *cause,for (i =0 ; i < node->count; i++) {if (!rose_ftimer_running (node->neighbour[i])) { res = node->neighbour[i]; +rose_neigh_hold (node->neighbour[i]); goto out; } failed =1 ;
@@ -780,13 +781,13 @@ static void rose_del_route_by_neigh(struct rose_neigh *rose_neigh) }if (rose_route->neigh1 == rose_neigh) { - rose_route->neigh1->use--; +rose_neigh_put (rose_route->neigh1); rose_route->neigh1 =NULL ;rose_transmit_clear_request (rose_route->neigh2, rose_route->lci2,ROSE_OUT_OF_ORDER ,0 ); }if (rose_route->neigh2 == rose_neigh) { - rose_route->neigh2->use--; +rose_neigh_put (rose_route->neigh2); rose_route->neigh2 =NULL ;rose_transmit_clear_request (rose_route->neigh1, rose_route->lci1,ROSE_OUT_OF_ORDER ,0 ); }
@@ -915,7 +916,7 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)rose_clear_queues (sk); rose->cause =ROSE_NETWORK_CONGESTION ; rose->diagnostic =0 ; - rose->neighbour->use--; +rose_neigh_put (rose->neighbour); rose->neighbour =NULL ; rose->lci =0 ; rose->state =ROSE_STATE_0 ;
@@ -1040,12 +1041,12 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)if ((new_lci =rose_new_lci (new_neigh)) ==0 ) {rose_transmit_clear_request (rose_neigh, lci,ROSE_NETWORK_CONGESTION ,71 ); - goto out; + goto put_neigh; }if ((rose_route =kmalloc (sizeof (*rose_route),GFP_ATOMIC )) ==NULL ) {rose_transmit_clear_request (rose_neigh, lci,ROSE_NETWORK_CONGESTION ,120 ); - goto out; + goto put_neigh; } rose_route->lci1 = lci;
@@ -1058,8 +1059,8 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25) rose_route->lci2 = new_lci; rose_route->neigh2 = new_neigh; - rose_route->neigh1->use++; - rose_route->neigh2->use++; +rose_neigh_hold (rose_route->neigh1); +rose_neigh_hold (rose_route->neigh2); rose_route->next = rose_route_list; rose_route_list = rose_route;
@@ -1071,6 +1072,8 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)rose_transmit_link (skb, rose_route->neigh2); res =1 ; +put_neigh: +rose_neigh_put (new_neigh); out:spin_unlock_bh (&rose_route_list_lock);spin_unlock_bh (&rose_neigh_list_lock);
@@ -1186,7 +1189,7 @@ static int rose_neigh_show(struct seq_file *seq, void *v) (rose_neigh->loopback) ?"RSLOOP-0" :ax2asc (buf, &rose_neigh->callsign), rose_neigh->dev ? rose_neigh->dev->name :"???" , rose_neigh->count, - rose_neigh->use, +refcount_read (&rose_neigh->use) -1 , (rose_neigh->dce_mode) ?"DCE" :"DTE" , (rose_neigh->restarted) ?"yes" :"no" , ax25_display_timer(&rose_neigh->t0timer) / HZ,
net/rose/rose_timer.c +1 -1
@@ -180,7 +180,7 @@ static void rose_timer_expiry(struct timer_list *t)break ;case ROSE_STATE_2 :/* T3 */ - rose->neighbour->use--; +rose_neigh_put (rose->neighbour);rose_disconnect (sk,ETIMEDOUT ,-1 ,-1 );break ;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 53/75 net: rose: include node references in rose_neigh refcount
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takamitsu Iwai <[email protected]>
[ Upstream commit da9c9c877597170b929a6121a68dcd3dd9a80f45 ]
Current implementation maintains two separate reference counting
mechanisms: the 'count' field in struct rose_neigh tracks references from rose_node structures, while the 'use' field (now refcount_t) tracks references from rose_sock.
This patch merges these two reference counting systems using 'use' field for proper reference management. Specifically, this patch adds incrementing and decrementing of rose_neigh->use when rose_neigh->count is incremented or decremented.
This patch also modifies rose_rt_free(), rose_rt_device_down() and rose_clear_route() to properly release references to rose_neigh objects before freeing a rose_node through rose_remove_node().
These changes ensure rose_neigh structures are properly freed only when all references, including those from rose_node structures, are released. As a result, this resolves a slab-use-after-free issue reported by Syzbot.
--- net/rose/rose_route.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
net/rose/rose_route.c +16 -2
@@ -178,6 +178,7 @@ static int __must_check rose_add_node(struct rose_route_struct *rose_route, } } rose_neigh->count++; +rose_neigh_hold (rose_neigh); goto out; }
@@ -187,6 +188,7 @@ static int __must_check rose_add_node(struct rose_route_struct *rose_route, rose_node->neighbour[rose_node->count] = rose_neigh; rose_node->count++; rose_neigh->count++; +rose_neigh_hold (rose_neigh); } out:
@@ -322,6 +324,7 @@ static int rose_del_node(struct rose_route_struct *rose_route,for (i =0 ; i < rose_node->count; i++) {if (rose_node->neighbour[i] == rose_neigh) { rose_neigh->count--; +rose_neigh_put (rose_neigh);if (rose_neigh->count ==0 ) {rose_remove_neigh (rose_neigh);
@@ -430,6 +433,7 @@ int rose_add_loopback_node(const rose_address *address) rose_node_list = rose_node; rose_loopback_neigh->count++; +rose_neigh_hold (rose_loopback_neigh); out:spin_unlock_bh (&rose_node_list_lock);
@@ -461,6 +465,7 @@ void rose_del_loopback_node(const rose_address *address)rose_remove_node (rose_node); rose_loopback_neigh->count--; +rose_neigh_put (rose_loopback_neigh); out:spin_unlock_bh (&rose_node_list_lock);
@@ -500,6 +505,7 @@ void rose_rt_device_down(struct net_device *dev)memmove (&t->neighbour[i], &t->neighbour[i +1 ],sizeof (t->neighbour[0 ]) * (t->count - i)); +rose_neigh_put (s); }if (t->count <=0 )
@@ -543,6 +549,7 @@ static int rose_clear_routes(void) {struct rose_neigh *s, *rose_neigh;struct rose_node *t, *rose_node; +int i;spin_lock_bh (&rose_node_list_lock);spin_lock_bh (&rose_neigh_list_lock);
@@ -553,8 +560,12 @@ static int rose_clear_routes(void)while (rose_node !=NULL ) { t = rose_node; rose_node = rose_node->next; -if (!t->loopback) + +if (!t->loopback) { +for (i =0 ; i < rose_node->count; i++) +rose_neigh_put (t->neighbour[i]);rose_remove_node (t); + } }while (rose_neigh !=NULL ) {
@@ -1189,7 +1200,7 @@ static int rose_neigh_show(struct seq_file *seq, void *v) (rose_neigh->loopback) ?"RSLOOP-0" :ax2asc (buf, &rose_neigh->callsign), rose_neigh->dev ? rose_neigh->dev->name :"???" , rose_neigh->count, -refcount_read (&rose_neigh->use) -1 , +refcount_read (&rose_neigh->use) - rose_neigh->count -1 , (rose_neigh->dce_mode) ?"DCE" :"DTE" , (rose_neigh->restarted) ?"yes" :"no" , ax25_display_timer(&rose_neigh->t0timer) / HZ,
@@ -1294,6 +1305,7 @@ void __exit rose_rt_free(void)struct rose_neigh *s, *rose_neigh = rose_neigh_list;struct rose_node *t, *rose_node = rose_node_list;struct rose_route *u, *rose_route = rose_route_list; +int i;while (rose_neigh !=NULL ) { s = rose_neigh;
@@ -1307,6 +1319,8 @@ void __exit rose_rt_free(void) t = rose_node; rose_node = rose_node->next; +for (i =0 ; i < t->count; i++) +rose_neigh_put (t->neighbour[i]);rose_remove_node (t); }
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 54/75 sctp: initialize more fields in sctp_v6_from_sk()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
[ Upstream commit 2e8750469242cad8f01f320131fd5a6f540dbb99 ]
syzbot found that sin6_scope_id was not properly initialized, leading to undefined behavior.
Clear sin6_scope_id and sin6_flowinfo.
BUG: KMSAN: uninit-value in __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649 __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649 sctp_inet6_cmp_addr+0x4f2/0x510 net/sctp/ipv6.c:983 sctp_bind_addr_conflict+0x22a/0x3b0 net/sctp/bind_addr.c:390 sctp_get_port_local+0x21eb/0x2440 net/sctp/socket.c:8452 sctp_get_port net/sctp/socket.c:8523 [inline] sctp_listen_start net/sctp/socket.c:8567 [inline] sctp_inet_listen+0x710/0xfd0 net/sctp/socket.c:8636 __sys_listen_socket net/socket.c:1912 [inline] __sys_listen net/socket.c:1927 [inline] __do_sys_listen net/socket.c:1932 [inline] __se_sys_listen net/socket.c:1930 [inline] __x64_sys_listen+0x343/0x4c0 net/socket.c:1930 x64_sys_call+0x271d/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:51 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Local variable addr.i.i created at:
sctp_get_port net/sctp/socket.c:8515 [inline] sctp_listen_start net/sctp/socket.c:8567 [inline] sctp_inet_listen+0x650/0xfd0 net/sctp/socket.c:8636 __sys_listen_socket net/socket.c:1912 [inline] __sys_listen net/socket.c:1927 [inline] __do_sys_listen net/socket.c:1932 [inline] __se_sys_listen net/socket.c:1930 [inline] __x64_sys_listen+0x343/0x4c0 net/socket.c:1930
--- net/sctp/ipv6.c | 2 ++ 1 file changed, 2 insertions(+)
net/sctp/ipv6.c +2 -0
@@ -547,7 +547,9 @@ static void sctp_v6_from_sk(union sctp_addr *addr, struct sock *sk) { addr->v6.sin6_family =AF_INET6 ; addr->v6.sin6_port =0 ; + addr->v6.sin6_flowinfo =0 ; addr->v6.sin6_addr = sk->sk_v6_rcv_saddr; + addr->v6.sin6_scope_id =0 ; }/* Initialize sk->sk_rcv_saddr from sctp_addr. */
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 55/75 efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Li Nan <[email protected]>
[ Upstream commit a6358f8cf64850f3f27857b8ed8c1b08cfc4685c ]
Observed on kernel 6.6 (present on master as well):
BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0 Call trace: kasan_check_range+0xe8/0x190 __asan_loadN+0x1c/0x28 memcmp+0x98/0xd0 efivarfs_d_compare+0x68/0xd8 __d_lookup_rcu_op_compare+0x178/0x218 __d_lookup_rcu+0x1f8/0x228 d_alloc_parallel+0x150/0x648 lookup_open.isra.0+0x5f0/0x8d0 open_last_lookups+0x264/0x828 path_openat+0x130/0x3f8 do_filp_open+0x114/0x248 do_sys_openat2+0x340/0x3c0 __arm64_sys_openat+0x120/0x1a0
If dentry->d_name.len < EFI_VARIABLE_GUID_LEN , 'guid' can become negative, leadings to oob. The issue can be triggered by parallel lookups using invalid filename:
T1 T2
lookup_open
->lookup
simple_lookup
d_add
// invalid dentry is added to hash list
lookup_open
d_alloc_parallel
__d_lookup_rcu
__d_lookup_rcu_op_compare
hlist_bl_for_each_entry_rcu
// invalid dentry can be retrieved
->d_compare
efivarfs_d_compare
// oobFix it by checking 'guid' before cmp.
--- fs/efivarfs/super.c | 4 ++++ 1 file changed, 4 insertions(+)
fs/efivarfs/super.c +4 -0
@@ -90,6 +90,10 @@ static int efivarfs_d_compare(const struct dentry *dentry, {int guid = len -EFI_VARIABLE_GUID_LEN ; +/* Parallel lookups may produce a temporary invalid filename */ +if (guid <=0 ) +return 1 ; +if (name->len != len)return 1 ;
Signature · 1 line
2.50.1
Greg Kroah-Hartman
maintainerPATCH 56/75 KVM: x86: use array_index_nospec with indices that come from guest
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thijs Raymakers <[email protected]>
commit c87bd4dd43a624109c3cc42d843138378a7f4548 upstream.
min and dest_id are guest-controlled indices. Using array_index_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.
--- arch/x86/kvm/lapic.c | 2 ++ arch/x86/kvm/x86.c | 7 +++++-- 2 files changed, 7 insertions(+), 2 deletions(-)
arch/x86/kvm/lapic.c +2 -0
@@ -847,6 +847,8 @@ static int __pv_send_ipi(unsigned long *if (min > map->max_apic_id)return 0 ; + min =array_index_nospec (min, map->max_apic_id +1 ); +for_each_set_bit (i, ipi_bitmap,min ((u32 )BITS_PER_LONG , (map->max_apic_id - min +1 ))) {if (map->phys_map[min + i]) {
arch/x86/kvm/x86.c +5 -2
@@ -9802,8 +9802,11 @@ static void kvm_sched_yield(struct kvm_vrcu_read_lock (); map =rcu_dereference (vcpu->kvm->arch.apic_map); -if (likely (map) && dest_id <= map->max_apic_id && map->phys_map[dest_id]) - target = map->phys_map[dest_id]->vcpu; +if (likely (map) && dest_id <= map->max_apic_id) { + dest_id =array_index_nospec (dest_id, map->max_apic_id +1 ); +if (map->phys_map[dest_id]) + target = map->phys_map[dest_id]->vcpu; + }rcu_read_unlock ();
Greg Kroah-Hartman
maintainerPATCH 57/75 x86/microcode/AMD: Handle the case of no BIOS microcode
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Borislav Petkov (AMD) <[email protected]>
commit fcf8239ad6a5de54fa7ce18e464c6b5951b982cb upstream.
Machines can be shipped without any microcode in the BIOS. Which means, the microcode patch revision is 0.
Handle that gracefully.
--- arch/x86/kernel/cpu/microcode/amd.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-)
arch/x86/kernel/cpu/microcode/amd.c +20 -2
@@ -161,8 +161,28 @@ static int cmp_id(const void *key, constreturn 1 ; } +static u32 cpuid_to_ucode_rev (unsigned int val) +{ +union zen_patch_rev p = {}; +union cpuid_1_eax c; + + c.full = val; + + p.stepping = c.stepping; + p.model = c.model; + p.ext_model = c.ext_model; + p.ext_fam = c.ext_fam; + +return p.ucode_rev; +} +static bool need_sha_check (u32 cur_rev) { +if (!cur_rev) { + cur_rev =cpuid_to_ucode_rev (bsp_cpuid_1_eax); +pr_info_once ("No current revision, generating the lowest one: 0x%x\n" , cur_rev); + } +switch (cur_rev >>8 ) {case 0x80012 :return cur_rev <=0x800126f ;break ;case 0x80082 :return cur_rev <=0x800820f ;break ;
@@ -744,8 +764,6 @@ static struct ucode_patch *cache_find_pa n.equiv_cpu = equiv_cpu; n.patch_id = uci->cpu_sig.rev; -WARN_ON_ONCE (!n.patch_id); -list_for_each_entry (p, µcode_cache, plist)if (patch_cpus_equivalent (p, &n, false))return p;
Greg Kroah-Hartman
maintainerPATCH 58/75 HID: asus: fix UAF via HID_CLAIMED_INPUT validation
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Qasim Ijaz <[email protected]>
commit d3af6ca9a8c34bbd8cff32b469b84c9021c9e7e4 upstream.
After hid_hw_start() is called hidinput_connect() will eventually be called to set up the device with the input layer since the HID_CONNECT_DEFAULT connect mask is used. During hidinput_connect() all input and output reports are processed and corresponding hid_inputs are allocated and configured via hidinput_configure_usages(). This process involves slot tagging report fields and configuring usages by setting relevant bits in the capability bitmaps. However it is possible that the capability bitmaps are not set at all leading to the subsequent hidinput_has_been_populated() check to fail leading to the freeing of the hid_input and the underlying input device.
This becomes problematic because a malicious HID device like a ASUS ROG N-Key keyboard can trigger the above scenario via a specially crafted descriptor which then leads to a user-after-free when the name of the freed input device is written to later on after hid_hw_start(). Below, report 93 intentionally utilises the HID_UP_UNDEFINED Usage Page which is skipped during usage configuration, leading to the frees.
0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x05, // Usage (Touch Pad) 0xA1, 0x01, // Collection (Application) 0x85, 0x0D, // Report ID (13) 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined 0xFF00) 0x09, 0xC5, // Usage (0xC5) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x04, // Report Count (4) 0xB1, 0x02, // Feature (Data,Var,Abs) 0x85, 0x5D, // Report ID (93) 0x06, 0x00, 0x00, // Usage Page (Undefined) 0x09, 0x01, // Usage (0x01) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x1B, // Report Count (27) 0x81, 0x02, // Input (Data,Var,Abs) 0xC0, // End Collection
Below is the KASAN splat after triggering the UAF:
[ 21.672709] ================================================================== [ 21.673700] BUG: KASAN: slab-use-after-free in asus_probe+0xeeb/0xf80 [ 21.673700] Write of size 8 at addr ffff88810a0ac000 by task kworker/1:2/54 [ 21.673700] [ 21.673700] CPU: 1 UID: 0 PID: 54 Comm: kworker/1:2 Not tainted 6.16.0-rc4-g9773391cf4dd-dirty #36 PREEMPT(voluntary) [ 21.673700] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 21.673700] Call Trace: [ 21.673700] <TASK> [ 21.673700] dump_stack_lvl+0x5f/0x80 [ 21.673700] print_report+0xd1/0x660 [ 21.673700] kasan_report+0xe5/0x120 [ 21.673700] __asan_report_store8_noabort+0x1b/0x30 [ 21.673700] asus_probe+0xeeb/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220 [...] [ 21.673700] [ 21.673700] Allocated by task 54: [ 21.673700] kasan_save_stack+0x3d/0x60 [ 21.673700] kasan_save_track+0x18/0x40 [ 21.673700] kasan_save_alloc_info+0x3b/0x50 [ 21.673700] __kasan_kmalloc+0x9c/0xa0 [ 21.673700] __kmalloc_cache_noprof+0x139/0x340 [ 21.673700] input_allocate_device+0x44/0x370 [ 21.673700] hidinput_connect+0xcb6/0x2630 [ 21.673700] hid_connect+0xf74/0x1d60 [ 21.673700] hid_hw_start+0x8c/0x110 [ 21.673700] asus_probe+0x5a3/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220 [...] [ 21.673700] [ 21.673700] Freed by task 54: [ 21.673700] kasan_save_stack+0x3d/0x60 [ 21.673700] kasan_save_track+0x18/0x40 [ 21.673700] kasan_save_free_info+0x3f/0x60 [ 21.673700] __kasan_slab_free+0x3c/0x50 [ 21.673700] kfree+0xcf/0x350 [ 21.673700] input_dev_release+0xab/0xd0 [ 21.673700] device_release+0x9f/0x220 [ 21.673700] kobject_put+0x12b/0x220 [ 21.673700] put_device+0x12/0x20 [ 21.673700] input_free_device+0x4c/0xb0 [ 21.673700] hidinput_connect+0x1862/0x2630 [ 21.673700] hid_connect+0xf74/0x1d60 [ 21.673700] hid_hw_start+0x8c/0x110 [ 21.673700] asus_probe+0x5a3/0xf80 [ 21.673700] hid_device_probe+0x2ee/0x700 [ 21.673700] really_probe+0x1c6/0x6b0 [ 21.673700] __driver_probe_device+0x24f/0x310 [ 21.673700] driver_probe_device+0x4e/0x220
[...]
--- drivers/hid/hid-asus.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
drivers/hid/hid-asus.c +7 -1
@@ -1108,7 +1108,13 @@ static int asus_probe(struct hid_devicereturn ret; } -if (!drvdata->input) { +/* +* Check that input registration succeeded. Checking that +* HID_CLAIMED_INPUT is set prevents a UAF when all input devices +* were freed during registration due to no usages being mapped, +* leaving drvdata->input pointing to freed memory. +*/ +if (!drvdata->input || !(hdev->claimed &HID_CLAIMED_INPUT )) {hid_err (hdev,"Asus input not registered\n" ); ret = -ENOMEM ; goto err_stop_hw;
Greg Kroah-Hartman
maintainerPATCH 59/75 HID: multitouch: fix slab out-of-bounds access in mt_report_fixup()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Qasim Ijaz <[email protected]>
commit 0379eb8691b9c4477da0277ae0832036ca4410b4 upstream.
A malicious HID device can trigger a slab out-of-bounds during mt_report_fixup() by passing in report descriptor smaller than 607 bytes. mt_report_fixup() attempts to patch byte offset 607 of the descriptor with 0x25 by first checking if byte offset 607 is 0x15 however it lacks bounds checks to verify if the descriptor is big enough before conducting this check. Fix this bug by ensuring the descriptor size is at least 608 bytes before accessing it.
Below is the KASAN splat after the out of bounds access happens:
[ 13.671954] ================================================================== [ 13.672667] BUG: KASAN: slab-out-of-bounds in mt_report_fixup+0x103/0x110 [ 13.673297] Read of size 1 at addr ffff888103df39df by task kworker/0:1/10 [ 13.673297] [ 13.673297] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.15.0-00005-gec5d573d83f4-dirty #3 [ 13.673297] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/04 [ 13.673297] Call Trace: [ 13.673297] <TASK> [ 13.673297] dump_stack_lvl+0x5f/0x80 [ 13.673297] print_report+0xd1/0x660 [ 13.673297] kasan_report+0xe5/0x120 [ 13.673297] __asan_report_load1_noabort+0x18/0x20 [ 13.673297] mt_report_fixup+0x103/0x110 [ 13.673297] hid_open_report+0x1ef/0x810 [ 13.673297] mt_probe+0x422/0x960 [ 13.673297] hid_device_probe+0x2e2/0x6f0 [ 13.673297] really_probe+0x1c6/0x6b0 [ 13.673297] __driver_probe_device+0x24f/0x310 [ 13.673297] driver_probe_device+0x4e/0x220 [ 13.673297] __device_attach_driver+0x169/0x320 [ 13.673297] bus_for_each_drv+0x11d/0x1b0 [ 13.673297] __device_attach+0x1b8/0x3e0 [ 13.673297] device_initial_probe+0x12/0x20 [ 13.673297] bus_probe_device+0x13d/0x180 [ 13.673297] device_add+0xe3a/0x1670 [ 13.673297] hid_add_device+0x31d/0xa40
[...]
--- drivers/hid/hid-multitouch.c | 8 ++++++++ 1 file changed, 8 insertions(+)
drivers/hid/hid-multitouch.c +8 -0
@@ -1448,6 +1448,14 @@ static __u8 *mt_report_fixup(struct hid_if (hdev->vendor ==I2C_VENDOR_ID_GOODIX && (hdev->product ==I2C_DEVICE_ID_GOODIX_01E8 || hdev->product ==I2C_DEVICE_ID_GOODIX_01E9 )) { +if (*size <608 ) { +dev_info ( + &hdev->dev, +"GT7868Q fixup: report descriptor is only %u bytes, skipping\n" , + *size); +return rdesc; + } +if (rdesc[607 ] ==0x15 ) { rdesc[607 ] =0x25 ; dev_info(
Greg Kroah-Hartman
maintainerPATCH 60/75 HID: quirks: add support for Legion Go dual dinput modes
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Antheas Kapenekakis <[email protected]>
commit 1f3214aae9f49faf495f3836216afbc6c5400b2e upstream.
The Legion Go features detachable controllers which support a dual dinput mode. In this mode, the controllers appear under a single HID device with two applications.
Currently, both controllers appear under the same event device, causing their controls to be mixed up. This patch separates the two so that they can be used independently.
In addition, the latest firmware update for the Legion Go swaps the IDs to the ones used by the Legion Go 2, so add those IDs as well.
--- drivers/hid/hid-ids.h | 2 ++ drivers/hid/hid-quirks.c | 2 ++ 2 files changed, 4 insertions(+)
drivers/hid/hid-ids.h +2 -0
@@ -818,6 +818,8 @@#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019 0x6019#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_602E 0x602e#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6093 0x6093 +#define USB_DEVICE_ID_LENOVO_LEGION_GO_DUAL_DINPUT 0x6184 +#define USB_DEVICE_ID_LENOVO_LEGION_GO2_DUAL_DINPUT 0x61ed#define USB_VENDOR_ID_LETSKETCH 0x6161#define USB_DEVICE_ID_WP9620N 0x4d15
drivers/hid/hid-quirks.c +2 -0
@@ -124,6 +124,8 @@ static const struct hid_device_id hid_qu { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_T609A), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_ODDOR_HANDBRAKE), HID_QUIRK_ALWAYS_POLL }, + { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_LEGION_GO_DUAL_DINPUT), HID_QUIRK_MULTI_INPUT }, + { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_LEGION_GO2_DUAL_DINPUT), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019), HID_QUIRK_ALWAYS_POLL },
Greg Kroah-Hartman
maintainerPATCH 61/75 HID: logitech: Add ids for G PRO 2 LIGHTSPEED
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matt Coffin <[email protected]>
commit ab1bb82f3db20e23eace06db52031b1164a110c2 upstream.
Adds support for the G PRO 2 LIGHTSPEED Wireless via it's nano receiver or directly. This nano receiver appears to work identically to the 1_1 receiver for the case I've verified, which is the battery status through lg-hidpp.
The same appears to be the case wired, sharing much with the Pro X Superlight 2; differences seemed to lie in userland configuration rather than in interfaces used by hid_logitech_hidpp on the kernel side.
I verified the sysfs interface for battery charge/discharge status, and capacity read to be working on my 910-007290 device (white).
--- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-logitech-dj.c | 4 ++++ drivers/hid/hid-logitech-hidpp.c | 2 ++ 3 files changed, 7 insertions(+)
drivers/hid/hid-ids.h +1 -0
@@ -893,6 +893,7 @@#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2 0xc534#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1 0xc539#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1 0xc53f +#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2 0xc543#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY 0xc53a#define USB_DEVICE_ID_LOGITECH_BOLT_RECEIVER 0xc548#define USB_DEVICE_ID_SPACETRAVELLER 0xc623
drivers/hid/hid-logitech-dj.c +4 -0
@@ -1983,6 +1983,10 @@ static const struct hid_device_id logi_d HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1), .driver_data = recvr_type_gaming_hidpp}, + {/* Logitech lightspeed receiver (0xc543) */ +HID_USB_DEVICE (USB_VENDOR_ID_LOGITECH , + USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2), + .driver_data = recvr_type_gaming_hidpp}, { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
drivers/hid/hid-logitech-hidpp.c +2 -0
@@ -4652,6 +4652,8 @@ static const struct hid_device_id hidpp_ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC094) }, {/* Logitech G Pro X Superlight 2 Gaming Mouse over USB */ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC09b) }, + { /* Logitech G PRO 2 LIGHTSPEED Wireless Mouse over USB */ + HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xc09a) }, { /* G935 Gaming Headset */ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0x0a87),
Greg Kroah-Hartman
maintainerPATCH 62/75 HID: wacom: Add a new Art Pen 2
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ping Cheng <[email protected]>
commit 9fc51941d9e7793da969b2c66e6f8213c5b1237f upstream.
--- drivers/hid/wacom_wac.c | 1 + 1 file changed, 1 insertion(+)
drivers/hid/wacom_wac.c +1 -0
@@ -684,6 +684,7 @@ static bool wacom_is_art_pen(int tool_idcase 0x885 :/* Intuos3 Marker Pen */ case 0x804 :/* Intuos4/5 13HD/24HD Marker Pen */ case 0x10804 :/* Intuos4/5 13HD/24HD Art Pen */ +case 0x204 :/* Art Pen 2 */ is_art_pen = true;break ; }
Greg Kroah-Hartman
maintainerPATCH 63/75 HID: hid-ntrig: fix unable to handle page fault in ntrig_report_version()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Minjong Kim <[email protected]>
commit 185c926283da67a72df20a63a5046b3b4631b7d9 upstream.
in ntrig_report_version(), hdev parameter passed from hid_probe(). sending descriptor to /dev/uhid can make hdev->dev.parent->parent to null if hdev->dev.parent->parent is null, usb_dev has
invalid address(0xffffffffffffff58) that hid_to_usb_dev(hdev) returned when usb_rcvctrlpipe() use usb_dev,it trigger
page fault error for address(0xffffffffffffff58)
add null check logic to ntrig_report_version()
before calling hid_to_usb_dev()
--- drivers/hid/hid-ntrig.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/hid/hid-ntrig.c +3 -0
@@ -144,6 +144,9 @@ static void ntrig_report_version(structstruct usb_device *usb_dev =hid_to_usb_dev (hdev);unsigned char *data =kmalloc (8 ,GFP_KERNEL ); +if (!hid_is_usb (hdev)) +return ; +if (!data) goto err_free;
Greg Kroah-Hartman
maintainerPATCH 64/75 Revert "drm/amdgpu: fix incorrect vm flags to map bo"
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <[email protected]>
commit ac4ed2da4c1305a1a002415058aa7deaf49ffe3e upstream.
This reverts commit b08425fa77ad2f305fe57a33dceb456be03b653f.
Revert this to align with 6.17 because the fixes tag was wrong on this commit.
--- drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c +2 -2
@@ -89,8 +89,8 @@ int amdgpu_map_static_csa(struct amdgpu_ } r =amdgpu_vm_bo_map (adev, *bo_va, csa_addr,0 , size, -AMDGPU_VM_PAGE_READABLE |AMDGPU_VM_PAGE_WRITEABLE | -AMDGPU_VM_PAGE_EXECUTABLE ); +AMDGPU_PTE_READABLE |AMDGPU_PTE_WRITEABLE | +AMDGPU_PTE_EXECUTABLE );if (r) {DRM_ERROR ("failed to do bo_map on static CSA, err=%d\n" , r);
Greg Kroah-Hartman
maintainerPATCH 65/75 dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shanker Donthineni <[email protected]>
commit 89a2d212bdb4bc29bed8e7077abe054b801137ea upstream.
When CONFIG_DMA_DIRECT_REMAP is enabled, atomic pool pages are remapped via dma_common_contiguous_remap() using the supplied pgprot. Currently, the mapping uses pgprot_dmacoherent(PAGE_KERNEL), which leaves the memory encrypted on systems with memory encryption enabled (e.g., ARM CCA Realms).
This can cause the DMA layer to fail or crash when accessing the memory, as the underlying physical pages are not configured as expected.
Fix this by requesting a decrypted mapping in the vmap() call:
pgprot_decrypted(pgprot_dmacoherent(PAGE_KERNEL))
This ensures that atomic pool memory is consistently mapped unencrypted.
--- kernel/dma/pool.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
kernel/dma/pool.c +2 -2
@@ -102,8 +102,8 @@ static int atomic_pool_expand(struct gen#ifdef CONFIG_DMA_DIRECT_REMAP addr =dma_common_contiguous_remap (page, pool_size, -pgprot_dmacoherent (PAGE_KERNEL ), -__builtin_return_address (0 )); +pgprot_decrypted (pgprot_dmacoherent (PAGE_KERNEL )), +__builtin_return_address (0 ));if (!addr) goto free_page;#else
Greg Kroah-Hartman
maintainerPATCH 66/75 fs/smb: Fix inconsistent refcnt update
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shuhao Fu <[email protected]>
commit ab529e6ca1f67bcf31f3ea80c72bffde2e9e053e upstream.
A possible inconsistent update of refcount was identified in smb2_compound_op. Such inconsistent update could lead to possible resource leaks.
Why it is a possible bug:
1. In the comment section of the function, it clearly states that the reference to cfile should be dropped after calling this function.
2. Every control flow path would check and drop the reference to cfile, except the patched one.
3. Existing callers would not handle refcount update of cfile if -ENOMEM is returned.
To fix the bug, an extra goto label "out" is added, to make sure that the cleanup logic would always be respected. As the problem is caused by the allocation failure of vars, the cleanup logic between label "finished" and "out" can be safely ignored. According to the definition of function is_replayable_error, the error code of "-ENOMEM" is not recoverable. Therefore, the replay logic also gets ignored.
--- fs/smb/client/smb2inode.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
fs/smb/client/smb2inode.c +5 -2
@@ -206,8 +206,10 @@ replay_again: server =cifs_pick_channel (ses); vars =kzalloc (sizeof (*vars),GFP_ATOMIC ); -if (vars ==NULL ) -return -ENOMEM ; +if (vars ==NULL ) { + rc = -ENOMEM ; + goto out; + } rqst = &vars->rqst[0 ]; rsp_iov = &vars->rsp_iov[0 ];
@@ -828,6 +830,7 @@ finished: smb2_should_replay(tcon, &retries, &cur_sleep)) goto replay_again; +out:if (cfile)cifsFileInfo_put (cfile);
Greg Kroah-Hartman
maintainerPATCH 67/75 net: usb: qmi_wwan: add Telit Cinterion LE910C4-WWX new compositions
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Fabio Porcedda <[email protected]>
commit e81a7f65288c7e2cfb7e7890f648e099fd885ab3 upstream.
Add the following Telit Cinterion LE910C4-WWX new compositions:
0x1034: tty (AT) + tty (AT) + rmnet
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 8 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1bc7 ProdID=1034 Rev=00.00 S: Manufacturer=Telit S: Product=LE910C4-WWX S: SerialNumber=93f617e7 C: #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=fe Prot=ff Driver=option E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
0x1037: tty (diag) + tty (Telit custom) + tty (AT) + tty (AT) + rmnet
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 15 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1bc7 ProdID=1037 Rev=00.00 S: Manufacturer=Telit S: Product=LE910C4-WWX S: SerialNumber=93f617e7 C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=fe Prot=ff Driver=option E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=87(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
0x1038: tty (Telit custom) + tty (AT) + tty (AT) + rmnet
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 9 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1bc7 ProdID=1038 Rev=00.00 S: Manufacturer=Telit S: Product=LE910C4-WWX S: SerialNumber=93f617e7 C: #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=fe Prot=ff Driver=option E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
--- drivers/net/usb/qmi_wwan.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/net/usb/qmi_wwan.c +3 -0
@@ -1363,6 +1363,9 @@ static const struct usb_device_id produc {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1031, 3)}, /* Telit LE910C1-EUX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1034, 2)}, /* Telit LE910C4-WWX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1037, 4)}, /* Telit LE910C4-WWX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1038, 3)}, /* Telit LE910C4-WWX */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x103a, 0)}, /* Telit LE910C4-WWX */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */
Greg Kroah-Hartman
maintainerPATCH 68/75 smb3 client: fix return code mapping of remap_file_range
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Steve French <[email protected]>
commit 0e08fa789d39aa01923e3ba144bd808291895c3c upstream.
We were returning -EOPNOTSUPP for various remap_file_range cases but for some of these the copy_file_range_syscall() requires -EINVAL to be returned (e.g. where source and target file ranges overlap when source and target are the same file). This fixes xfstest generic/157 which was expecting EINVAL for that (and also e.g. for when the src offset is beyond end of file).
--- fs/smb/client/cifsfs.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
fs/smb/client/cifsfs.c +14 -0
@@ -1371,6 +1371,20 @@ static loff_t cifs_remap_file_range(strunetfs_resize_file (&target_cifsi->netfs, new_size);fscache_resize_cookie (cifs_inode_cookie (target_inode), new_size); + }else if (rc == -EOPNOTSUPP ) { +/* +* copy_file_range syscall man page indicates EINVAL +* is returned e.g when "fd_in and fd_out refer to the +* same file and the source and target ranges overlap." +* Test generic/157 was what showed these cases where +* we need to remap EOPNOTSUPP to EINVAL +*/ +if (off >= src_inode->i_size) { + rc = -EINVAL ; + }else if (src_inode == target_inode) { +if (off + len > destoff) + rc = -EINVAL ; + } } }
Greg Kroah-Hartman
maintainerPATCH 69/75 drm/nouveau/disp: Always accept linear modifier
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: James Jones <[email protected]>
commit e2fe0c54fb7401e6ecd3c10348519ab9e23bd639 upstream.
On some chipsets, which block-linear modifiers are supported is format-specific. However, linear modifiers are always be supported. The prior modifier filtering logic was not accounting for the linear case.
--- drivers/gpu/drm/nouveau/dispnv50/wndw.c | 4 ++++ 1 file changed, 4 insertions(+)
drivers/gpu/drm/nouveau/dispnv50/wndw.c +4 -0
@@ -663,6 +663,10 @@ static bool nv50_plane_format_mod_supporstruct nouveau_drm *drm =nouveau_drm (plane->dev);uint8_t i; +/* All chipsets can display all formats in linear layout */ +if (modifier ==DRM_FORMAT_MOD_LINEAR ) +return true; +if (drm->client.device.info.chipset <0xc0 ) {const struct drm_format_info *info =drm_format_info (format);const uint8_t kind = (modifier >>12 ) &0xff ;
Greg Kroah-Hartman
maintainerPATCH 70/75 net: rose: fix a typo in rose_clear_routes()
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Dumazet <[email protected]>
commit 1cc8a5b534e5f9b5e129e54ee2e63c9f5da4f39a upstream.
syzbot crashed in rose_clear_routes(), after a recent patch typo.
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 UID: 0 PID: 10591 Comm: syz.3.1856 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:rose_clear_routes net/rose/rose_route.c:565 [inline] RIP: 0010:rose_rt_ioctl+0x162/0x1250 net/rose/rose_route.c:760 <TASK> rose_ioctl+0x3ce/0x8b0 net/rose/af_rose.c:1381 sock_do_ioctl+0xd9/0x300 net/socket.c:1238 sock_ioctl+0x576/0x790 net/socket.c:1359 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f
--- net/rose/rose_route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/rose/rose_route.c +1 -1
@@ -562,7 +562,7 @@ static int rose_clear_routes(void) rose_node = rose_node->next;if (!t->loopback) { -for (i =0 ; i < rose_node->count; i++) +for (i =0 ; i < t->count; i++)rose_neigh_put (t->neighbour[i]);rose_remove_node (t); }
Greg Kroah-Hartman
maintainerPATCH 71/75 net/mlx5: SF, Fix add port error handling
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chris Mi <[email protected]>
commit 2011a2a18ef00b5b8e4b753acbe6451a8c5f2260 upstream.
If failed to add SF, error handling doesn't delete the SF from the SF table. But the hw resources are deleted. So when unload driver, hw resources will be deleted again. Firmware will report syndrome 0x68def3 which means "SF is not allocated can not deallocate".
Fix it by delete SF from SF table if failed to add SF.
--- drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c | 1 + 1 file changed, 1 insertion(+)
drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c +1 -0
@@ -280,6 +280,7 @@ static int mlx5_sf_add(struct mlx5_core_return 0 ; esw_err: +mlx5_sf_function_id_erase (table, sf);mlx5_sf_free (table, sf);return err; }
Greg Kroah-Hartman
maintainerPATCH 72/75 HID: mcp2221: Dont set bus speed on every transfer
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hamish Martin <[email protected]>
commit 02a46753601a24e1673d9c28173121055e8e6cc9 upstream.
Since the initial commit of this driver the I2C bus speed has been reconfigured for every single transfer. This is despite the fact that we never change the speed and it is never "lost" by the chip. Upon investigation we find that what was really happening was that the setting of the bus speed had the side effect of cancelling a previous failed command if there was one, thereby freeing the bus. This is the part that was actually required to keep the bus operational in the face of failed commands.
Instead of always setting the speed, we now correctly cancel any failed commands as they are detected. This means we can just set the bus speed at probe time and remove the previous speed sets on each transfer. This has the effect of improving performance and reducing the number of commands required to complete transfers.
--- drivers/hid/hid-mcp2221.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-)
drivers/hid/hid-mcp2221.c +27 -14
@@ -187,6 +187,25 @@ static int mcp_cancel_last_cmd(struct mcreturn mcp_send_data_req_status (mcp, mcp->txbuf,8 ); } +/* Check if the last command succeeded or failed and return the result. +* If the command did fail, cancel that command which will free the i2c bus. +*/ +static int mcp_chk_last_cmd_status_free_bus (struct mcp2221 *mcp) +{ +int ret; + + ret =mcp_chk_last_cmd_status (mcp); +if (ret) { +/* The last command was a failure. +* Send a cancel which will also free the bus. +*/ +usleep_range (980 ,1000 ); +mcp_cancel_last_cmd (mcp); + } + +return ret; +} +static int mcp_set_i2c_speed (struct mcp2221 *mcp) {int ret;
@@ -241,7 +260,7 @@ static int mcp_i2c_write(struct mcp2221usleep_range (980 ,1000 );if (last_status) { - ret =mcp_chk_last_cmd_status (mcp); + ret =mcp_chk_last_cmd_status_free_bus (mcp);if (ret)return ret; }
@@ -308,7 +327,7 @@ static int mcp_i2c_smbus_read(struct mcpif (ret)return ret; - ret =mcp_chk_last_cmd_status (mcp); + ret =mcp_chk_last_cmd_status_free_bus (mcp);if (ret)return ret;
@@ -328,11 +347,6 @@ static int mcp_i2c_xfer(struct i2c_adaptmutex_lock (&mcp->lock); -/* Setting speed before every transaction is required for mcp2221 */ - ret =mcp_set_i2c_speed (mcp); -if (ret) - goto exit; -if (num ==1 ) {if (msgs->flags &I2C_M_RD ) { ret = mcp_i2c_smbus_read(mcp, msgs, MCP2221_I2C_RD_DATA,
@@ -417,9 +431,7 @@ static int mcp_smbus_write(struct mcp222if (last_status) {usleep_range (980 ,1000 ); - ret =mcp_chk_last_cmd_status (mcp); -if (ret) -return ret; + ret =mcp_chk_last_cmd_status_free_bus (mcp); }return ret;
@@ -437,10 +449,6 @@ static int mcp_smbus_xfer(struct i2c_adamutex_lock (&mcp->lock); - ret =mcp_set_i2c_speed (mcp); -if (ret) - goto exit; -switch (size) {case I2C_SMBUS_QUICK :
@@ -1152,6 +1160,11 @@ static int mcp2221_probe(struct hid_deviif (i2c_clk_freq <50 ) i2c_clk_freq =50 ; mcp->cur_i2c_clk_div = (12000000 / (i2c_clk_freq *1000 )) -3 ; + ret =mcp_set_i2c_speed (mcp); +if (ret) { +hid_err (hdev,"can't set i2c speed: %d\n" , ret); +return ret; + } mcp->adapter.owner =THIS_MODULE ; mcp->adapter.class =I2C_CLASS_HWMON ;
Greg Kroah-Hartman
maintainerPATCH 73/75 HID: mcp2221: Handle reads greater than 60 bytes
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hamish Martin <[email protected]>
commit 2682468671aa0b4d52ae09779b48212a80d71b91 upstream.
When a user requests more than 60 bytes of data the MCP2221 must chunk the data in chunks up to 60 bytes long (see command/response code 0x40 in the datasheet).
In order to signal that the device has more data the (undocumented) byte at byte index 2 of the Get I2C Data response uses the value 0x54. This contrasts with the case for the final data chunk where the value returned is 0x55 (MCP2221_I2C_READ_COMPL). The fact that 0x55 was not returned in the response was interpreted by the driver as a failure meaning that all reads of more than 60 bytes would fail.
Add support for reads that are split over multiple chunks by looking for the response code indicating that more data is expected and continuing the read as the code intended. Some timing delays are required to ensure the chip has time to refill its FIFO as data is read in from the I2C bus. This timing has been tested in my system when configured for bus speeds of 50KHz, 100KHz, and 400KHz and operates well.
--- drivers/hid/hid-mcp2221.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-)
drivers/hid/hid-mcp2221.c +23 -9
@@ -49,6 +49,7 @@ enum {MCP2221_I2C_MASK_ADDR_NACK =0x40 ,MCP2221_I2C_WRADDRL_SEND =0x21 ,MCP2221_I2C_ADDR_NACK =0x25 , +MCP2221_I2C_READ_PARTIAL =0x54 ,MCP2221_I2C_READ_COMPL =0x55 ,MCP2221_ALT_F_NOT_GPIOV =0xEE , MCP2221_ALT_F_NOT_GPIOD = 0xEF,
@@ -297,6 +298,7 @@ static int mcp_i2c_smbus_read(struct mcp {int ret;u16 total_len; +int retries =0 ; mcp->txbuf[0 ] = type;if (msg) {
@@ -320,20 +322,31 @@ static int mcp_i2c_smbus_read(struct mcp mcp->rxbuf_idx =0 ;do { +/* Wait for the data to be read by the device */ +usleep_range (980 ,1000 ); +memset (mcp->txbuf,0 ,4 ); mcp->txbuf[0 ] =MCP2221_I2C_GET_DATA ; ret =mcp_send_data_req_status (mcp, mcp->txbuf,1 ); -if (ret) -return ret; - - ret =mcp_chk_last_cmd_status_free_bus (mcp); -if (ret) -return ret; - -usleep_range (980 ,1000 ); +if (ret) { +if (retries <5 ) { +/* The data wasn't ready to read. +* Wait a bit longer and try again. +*/ +usleep_range (90 ,100 ); + retries++; + }else { +return ret; + } + }else { + retries =0 ; + } }while (mcp->rxbuf_idx < total_len); +usleep_range (980 ,1000 ); + ret =mcp_chk_last_cmd_status_free_bus (mcp); +return ret; }
@@ -799,7 +812,8 @@ static int mcp2221_raw_event(struct hid_ mcp->status = -EIO ;break ; } -if (data[2 ] ==MCP2221_I2C_READ_COMPL ) { +if (data[2 ] ==MCP2221_I2C_READ_COMPL || + data[2 ] ==MCP2221_I2C_READ_PARTIAL ) { buf = mcp->rxbuf;memcpy (&buf[mcp->rxbuf_idx], &data[4 ], data[3 ]); mcp->rxbuf_idx = mcp->rxbuf_idx + data[3 ];
Greg Kroah-Hartman
maintainerPATCH 74/75 Revert "drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS"
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Imre Deak <[email protected]>
This reverts commit 65e46aeaf84aa88539bcff6b8077e05fbd0700da which is commit a40c5d727b8111b5db424a1e43e14a1dcce1e77f upstream.
The upstream commit a40c5d727b8111b5db424a1e43e14a1dcce1e77f ("drm/dp:
Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS") the reverted commit backported causes a regression, on one eDP panel at least resulting in display flickering, described in detail at the Link:
below. The issue fixed by the upstream commit will need a different solution, revert the backport for now.
--- drivers/gpu/drm/display/drm_dp_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/display/drm_dp_helper.c +1 -1
@@ -663,7 +663,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_a* monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret =drm_dp_dpcd_probe (aux,DP_LANE0_1_STATUS ); + ret =drm_dp_dpcd_probe (aux,DP_DPCD_REV );if (ret <0 )return ret; }
Greg Kroah-Hartman
maintainerPATCH 75/75 xfs: do not propagate ENODATA disk errors into xattr code
In reply to Greg Kroah-Hartman6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Sandeen <[email protected]>
commit ae668cd567a6a7622bc813ee0bb61c42bed61ba7 upstream.
ENODATA (aka ENOATTR) has a very specific meaning in the xfs xattr code; namely, that the requested attribute name could not be found.
However, a medium error from disk may also return ENODATA. At best, this medium error may escape to userspace as "attribute not found" when in fact it's an IO (disk) error.
At worst, we may oops in xfs_attr_leaf_get() when we do:
error = xfs_attr_leaf_hasname(args, &bp);
if (error == -ENOATTR) {
xfs_trans_brelse(args->trans, bp);
return error;
}because an ENODATA/ENOATTR error from disk leaves us with a null bp, and the xfs_trans_brelse will then null-deref it.
As discussed on the list, we really need to modify the lower level IO functions to trap all disk errors and ensure that we don't let unique errors like this leak up into higher xfs functions - many like this should be remapped to EIO.
However, this patch directly addresses a reported bug in the xattr code, and should be safe to backport to stable kernels. A larger-scope patch to handle more unique errors at lower levels can follow later.
(Note, prior to 07120f1abdff we did not oops, but we did return the wrong error code to userspace.)
--- fs/xfs/libxfs/xfs_attr_remote.c | 7 +++++++ fs/xfs/libxfs/xfs_da_btree.c | 6 ++++++ 2 files changed, 13 insertions(+)
fs/xfs/libxfs/xfs_attr_remote.c +7 -0
@@ -418,6 +418,13 @@ xfs_attr_rmtval_get( dblkcnt =XFS_FSB_TO_BB (mp, map[i].br_blockcount); error =xfs_buf_read (mp->m_ddev_targp, dblkno, dblkcnt,0 , &bp, &xfs_attr3_rmt_buf_ops); +/* +* ENODATA from disk implies a disk medium failure; +* ENODATA for xattrs means attribute not found, so +* disambiguate that here. +*/ +if (error == -ENODATA ) + error = -EIO ;if (error)return error;
fs/xfs/libxfs/xfs_da_btree.c +6 -0
@@ -2649,6 +2649,12 @@ xfs_da_read_buf( error =xfs_trans_read_buf_map (mp, tp, mp->m_ddev_targp, mapp, nmap,0 , &bp, ops); +/* +* ENODATA from disk implies a disk medium failure; ENODATA for +* xattrs means attribute not found, so disambiguate that here. +*/ +if (error == -ENODATA && whichfork ==XFS_ATTR_FORK ) + error = -EIO ;if (error) goto out_free;
Broadcast regression confirmed fixed:
https://lore.kernel.org/regressions/[email protected]
# Librecast Test Results
010/010 [ OK ] libmld
120/120 [ OK ] liblibrecast
CPU/kernel: Linux auntie 6.6.104-rc1-g12cf6be144d1 #57 SMP PREEMPT_DYNAMIC Tue Sep 2 16:01:15 -00 2025 x86_64 AMD Ryzen 9 9950X 16-Core Processor AuthenticAMD GNU/Linux
Quoted 9 lines · Greg Kroah-Hartman
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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 Thu, 04 Sep 2025 13:19:14 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at:
Quoted 8 lines
https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.104-rc1.gzor in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gitlinux-6.6.y
and the diffstat can be found below.thanks,
greg k-h
All tests passing for Tegra ...
Test results for stable-v6.1:
10 builds: 10 pass, 0 fail
28 boots: 28 pass, 0 fail
120 tests: 120 pass, 0 failLinux version: 6.6.104-rc1-g12cf6be144d1
Boards tested: tegra124-jetson-tk1, tegra186-p2771-0000,
tegra186-p3509-0000+p3636-0001, tegra194-p2972-0000,
tegra194-p3509-0000+p3668-0000, tegra20-ventana,
tegra210-p2371-2180, tegra210-p3450-0000,
tegra30-cardhu-a04Jon
Quoted 9 lines · Greg Kroah-Hartman
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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 Thu, 04 Sep 2025 13:19:14 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at:
Quoted 8 lines
https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.104-rc1.gzor in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gitlinux-6.6.y
and the diffstat can be found below.thanks,
greg k-h
On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels, build tested on BMIPS_GENERIC:
Signature · 1 line
Florian
Quoted 10 lines · Greg Kroah-Hartman
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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 Thu, 04 Sep 2025 13:19:14 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at:
Quoted 8 lines
https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.104-rc1.gzor in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gitlinux-6.6.y
and the diffstat can be found below.thanks,
greg k-h
Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.
## Build
* kernel: 6.6.104-rc1
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git commit: 12cf6be144d1470c08fbb5844926e5b617dfde95
* git describe: v6.6.103-76-g12cf6be144d1
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.103-76-g12cf6be144d1
## Test Regressions (compared to v6.6.102-588-gdd454ff512a6)
## Metric Regressions (compared to v6.6.102-588-gdd454ff512a6)
## Test Fixes (compared to v6.6.102-588-gdd454ff512a6)
## Metric Fixes (compared to v6.6.102-588-gdd454ff512a6)
## Test result summary
total: 276426, pass: 257769, fail: 6102, skip: 12184, xfail: 371
## Build Summary
* arc: 5 total, 5 passed, 0 failed
* arm: 129 total, 129 passed, 0 failed
* arm64: 44 total, 44 passed, 0 failed
* i386: 23 total, 23 passed, 0 failed
* mips: 26 total, 25 passed, 1 failed
* parisc: 4 total, 4 passed, 0 failed
* powerpc: 32 total, 31 passed, 1 failed
* riscv: 15 total, 15 passed, 0 failed
* s390: 14 total, 13 passed, 1 failed
* sh: 10 total, 10 passed, 0 failed
* sparc: 7 total, 7 passed, 0 failed
* x86_64: 37 total, 36 passed, 1 failed
## Test suites summary
* boot
* commands
* kselftest-arm64
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-efivarfs
* kselftest-exec
* kselftest-fpu
* kselftest-ftrace
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-kcmp
* kselftest-kvm
* kselftest-livepatch
* kselftest-membarrier
* kselftest-memfd
* kselftest-mincore
* kselftest-mm
* kselftest-mqueue
* kselftest-net
* kselftest-net-mptcp
* kselftest-openat2
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-tc-testing
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user_events
* kselftest-vDSO
* kselftest-x86
* kunit
* kvm-unit-tests
* lava
* libgpiod
* libhugetlbfs
* log-parser-boot
* log-parser-build-clang
* log-parser-build-gcc
* log-parser-test
* ltp-capability
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-cpuhotplug
* ltp-crypto
* ltp-cve
* ltp-dio
* ltp-fcntl-locktests
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-hugetlb
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-pty
* ltp-sched
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* modules
* perf
* rcutorture
--
Linaro LKFT
https://lkft.linaro.org
Quoted 9 lines · Greg Kroah-Hartman
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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 Thu, 04 Sep 2025 13:19:14 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at:
Quoted 8 lines
https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.104-rc1.gzor in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gitlinux-6.6.y
and the diffstat can be found below.thanks,
greg k-h
Built and booted successfully on RISC-V RV64 (HiFive Unmatched).
Quoted 4 lines · Greg Kroah-Hartman
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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.
Am 02.09.2025 um 15:20 schrieb Greg Kroah-Hartman:
Quoted 4 lines
This is the start of the stable review cycle for the 6.6.104 release. There are 75 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.
Builds, boots and works on my 2-socket Ivy Bridge Xeon E5-2697 v2 server. No dmesg oddities or regressions found.
Beste Grüße,
Peter Schneider
Signature · 8 lines
Climb the mountain not to plant your flag, but to embrace the challenge, enjoy the air and behold the view. Climb it so you can see the world, not so the world can see you. -- David McCullough Jr. OpenPGP: 0xA3828BD796CCE11A8CADE8866E3A92C92C3FF244 Download: https://www.peters-netzplatz.de/download/pschneider1968_pub.asc https://keys.mailvelope.com/pks/lookup?op=get&[email protected] https://keys.mailvelope.com/pks/lookup?op=get&[email protected]