4.19.253-rc1 review

This is the start of the stable review cycle for the 4.19.253 release. There are 48 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, 21 Jul 2022 11:43:40 +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/v4.x/stable-review/patch-4.19.253-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-4.19.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <[email protected]>

    Linux 4.19.253-rc1

Marc Kleine-Budde <[email protected]>
can: m_can: m_can_tx_handler(): fix use after free of skb

Ilpo Järvinen <[email protected]>
serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle

Ilpo Järvinen <[email protected]>
serial: stm32: Clear prev values before setting RTS delays

Yi Yang <[email protected]>
serial: 8250: fix return error code in serial8250_request_std_resource()

Chanho Park <[email protected]>
tty: serial: samsung_tty: set dma burst_size to 1

Thinh Nguyen <[email protected]>
usb: dwc3: gadget: Fix event pending check

Linyu Yuan <[email protected]>
usb: typec: add missing uevent when partner support PD

Lucien Buchmann <[email protected]>
USB: serial: ftdi_sio: add Belimo device ids

Linus Torvalds <[email protected]>
signal handling: don't use BUG_ON() for debugging

Gabriel Fernandez <[email protected]>
ARM: dts: stm32: use the correct clock source for CEC on stm32mp151

Juergen Gross <[email protected]>
x86: Clear .brk area at early boot

Stafford Horne <[email protected]>
irqchip: or1k-pic: Undefine mask_ack for level triggered hardware

Charles Keepax <[email protected]>
ASoC: wm5110: Fix DRE control

Mark Brown <[email protected]>
ASoC: ops: Fix off by one in range control validation

Jianglei Nie <[email protected]>
net: sfp: fix memory leak in sfp_probe()

Michael Walle <[email protected]>
NFC: nxp-nci: don't print header length mismatch on i2c error

Hangyu Hua <[email protected]>
net: tipc: fix possible refcount leak in tipc_sk_create()

Kai-Heng Feng <[email protected]>
platform/x86: hp-wmi: Ignore Sanitization Mode event

Liang He <[email protected]>
cpufreq: pmac32-cpufreq: Fix refcount leak bug

Florian Westphal <[email protected]>
netfilter: br_netfilter: do not skip all hooks with 0 priority

Stephan Gerhold <[email protected]>
virtio_mmio: Restore guest page size on resume

Stephan Gerhold <[email protected]>
virtio_mmio: Add missing PM calls to freeze/restore

Íñigo Huguet <[email protected]>
sfc: fix kernel panic when creating VF

Andrea Mayer <[email protected]>
seg6: bpf: fix skb checksum in bpf_push_seg6_encap()

Andrea Mayer <[email protected]>
seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors

Andrea Mayer <[email protected]>
seg6: fix skb checksum evaluation in SRH encapsulation/insertion

Íñigo Huguet <[email protected]>
sfc: fix use after free when disabling sriov

Kuniyuki Iwashima <[email protected]>
ipv4: Fix data-races around sysctl_ip_dynaddr.

Kuniyuki Iwashima <[email protected]>
icmp: Fix a data-race around sysctl_icmp_ratemask.

Kuniyuki Iwashima <[email protected]>
icmp: Fix a data-race around sysctl_icmp_ratelimit.

Michal Suchanek <[email protected]>
ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero

Kuniyuki Iwashima <[email protected]>
icmp: Fix data-races around sysctl.

Kuniyuki Iwashima <[email protected]>
cipso: Fix data-races around sysctl.

Kuniyuki Iwashima <[email protected]>
net: Fix data-races around sysctl_mem.

Kuniyuki Iwashima <[email protected]>
inetpeer: Fix data-races around sysctl.

Francesco Dolcini <[email protected]>
ASoC: sgtl5000: Fix noise on shutdown/remove

Ard Biesheuvel <[email protected]>
ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle

Kris Bahnsen <[email protected]>
ARM: dts: imx6qdl-ts7970: Fix ngpio typo and count

Ryusuke Konishi <[email protected]>
nilfs2: fix incorrect masking of permission flags for symlinks

Tejun Heo <[email protected]>
cgroup: Use separate src/dst nodes when preloading css_sets for migration

Ard Biesheuvel <[email protected]>
ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction

Dmitry Osipenko <[email protected]>
ARM: 9213/1: Print message about disabled Spectre workarounds only once

Steven Rostedt (Google) <[email protected]>
net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer

Zheng Yejian <[email protected]>
tracing/histograms: Fix memory leak problem

Juergen Gross <[email protected]>
xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue

Meng Tang <[email protected]>
ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221

Meng Tang <[email protected]>
ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model

Meng Tang <[email protected]>
ALSA: hda - Add fixup for Dell Latitidue E5430

-------------

Diffstat:

 Documentation/networking/ip-sysctl.txt            |  4 +--
 Makefile                                          |  4 +--
 arch/arm/boot/dts/imx6qdl-ts7970.dtsi             |  2 +-
 arch/arm/boot/dts/stm32mp157c.dtsi                |  2 +-
 arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts |  2 +-
 arch/arm/include/asm/ptrace.h                     | 26 ++++++++++++++++
 arch/arm/mm/alignment.c                           |  3 ++
 arch/arm/mm/proc-v7-bugs.c                        |  9 +++---
 arch/arm/probes/decode.h                          | 26 +---------------
 arch/x86/kernel/head64.c                          |  2 ++
 drivers/cpufreq/pmac32-cpufreq.c                  |  4 +++
 drivers/irqchip/irq-or1k-pic.c                    |  1 -
 drivers/net/can/m_can/m_can.c                     |  5 +--
 drivers/net/ethernet/sfc/ef10.c                   |  3 ++
 drivers/net/ethernet/sfc/ef10_sriov.c             | 10 ++++--
 drivers/net/phy/sfp.c                             |  2 +-
 drivers/net/xen-netback/rx.c                      |  1 +
 drivers/nfc/nxp-nci/i2c.c                         |  8 +++--
 drivers/platform/x86/hp-wmi.c                     |  3 ++
 drivers/tty/serial/8250/8250_port.c               |  4 ++-
 drivers/tty/serial/amba-pl011.c                   | 23 ++++++++++++--
 drivers/tty/serial/samsung.c                      |  5 ++-
 drivers/tty/serial/stm32-usart.c                  |  2 ++
 drivers/usb/dwc3/gadget.c                         |  4 ++-
 drivers/usb/serial/ftdi_sio.c                     |  3 ++
 drivers/usb/serial/ftdi_sio_ids.h                 |  6 ++++
 drivers/usb/typec/class.c                         |  1 +
 drivers/virtio/virtio_mmio.c                      | 26 ++++++++++++++++
 fs/nilfs2/nilfs.h                                 |  3 ++
 include/linux/cgroup-defs.h                       |  3 +-
 include/net/sock.h                                |  2 +-
 include/trace/events/sock.h                       |  6 ++--
 kernel/cgroup/cgroup.c                            | 37 ++++++++++++++---------
 kernel/signal.c                                   |  8 ++---
 kernel/trace/trace_events_hist.c                  |  2 ++
 net/bridge/br_netfilter_hooks.c                   | 21 +++++++++++--
 net/core/filter.c                                 |  1 -
 net/ipv4/af_inet.c                                |  4 +--
 net/ipv4/cipso_ipv4.c                             | 12 +++++---
 net/ipv4/icmp.c                                   | 10 +++---
 net/ipv4/inetpeer.c                               | 12 +++++---
 net/ipv6/seg6_iptunnel.c                          |  5 ++-
 net/ipv6/seg6_local.c                             |  2 --
 net/tipc/socket.c                                 |  1 +
 sound/pci/hda/patch_conexant.c                    |  1 +
 sound/pci/hda/patch_realtek.c                     | 13 ++++++++
 sound/soc/codecs/sgtl5000.c                       |  9 ++++++
 sound/soc/codecs/sgtl5000.h                       |  1 +
 sound/soc/codecs/wm5110.c                         |  8 +++--
 sound/soc/soc-ops.c                               |  4 +--
 50 files changed, 255 insertions(+), 101 deletions(-)

From: Meng Tang <[email protected]>

commit 841bdf85c226803a78a9319af9b2caa9bf3e2eda upstream.

Another Dell model, another fixup entry: Latitude E5430 needs the same fixup as other Latitude E series as workaround for noise problems.

---
 sound/pci/hda/patch_realtek.c |    1 +
 1 file changed, 1 insertion(+)

@@ -7029,6 +7029,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1025, 0x132a, "Acer TravelMate B114-21", ALC233_FIXUP_ACER_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x1330, "Acer TravelMate X514-51T", ALC255_FIXUP_ACER_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
+	SND_PCI_QUIRK(0x1028, 0x053c, "Dell Latitude E5430", ALC292_FIXUP_DELL_E7X),
 	SND_PCI_QUIRK(0x1028, 0x054b, "Dell XPS one 2710", ALC275_FIXUP_DELL_XPS),
 	SND_PCI_QUIRK(0x1028, 0x05bd, "Dell Latitude E6440", ALC292_FIXUP_DELL_E7X),
 	SND_PCI_QUIRK(0x1028, 0x05be, "Dell Latitude E6540", ALC292_FIXUP_DELL_E7X),

From: Meng Tang <[email protected]>

commit d16d69bf5a25d91c6d8f3e29711be12551bf56cd upstream.

There is another HP ProDesk 600 G3 model with the PCI SSID 103c:82b4 that requires the quirk HP_MIC_NO_PRESENCE. Add the corresponding entry to the quirk table.

---
 sound/pci/hda/patch_conexant.c |    1 +
 1 file changed, 1 insertion(+)

@@ -918,6 +918,7 @@ static const struct snd_pci_quirk cxt506
 	SND_PCI_QUIRK(0x103c, 0x828c, "HP EliteBook 840 G4", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x8299, "HP 800 G3 SFF", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x829a, "HP 800 G3 DM", CXT_FIXUP_HP_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x103c, 0x82b4, "HP ProDesk 600 G3", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x836e, "HP ProBook 455 G5", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x103c, 0x837f, "HP ProBook 470 G5", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x103c, 0x83b2, "HP EliteBook 840 G5", CXT_FIXUP_HP_DOCK),

From: Meng Tang <[email protected]>

commit 4ba5c853d7945b3855c3dcb293f7f9f019db641e upstream.

On a HP 288 Pro G2 MT (X9W02AV), the front mic could not be detected. In order to get it working, the pin configuration needs to be set correctly, and the ALC221_FIXUP_HP_288PRO_MIC_NO_PRESENCE fixup needs to be applied.

---
 sound/pci/hda/patch_realtek.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

@@ -5844,6 +5844,7 @@ enum {
 	ALC298_FIXUP_LENOVO_SPK_VOLUME,
 	ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER,
 	ALC269_FIXUP_ATIV_BOOK_8,
+	ALC221_FIXUP_HP_288PRO_MIC_NO_PRESENCE,
 	ALC221_FIXUP_HP_MIC_NO_PRESENCE,
 	ALC256_FIXUP_ASUS_HEADSET_MODE,
 	ALC256_FIXUP_ASUS_MIC,

@@ -6642,6 +6643,16 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC269_FIXUP_NO_SHUTUP
 	},
+	[ALC221_FIXUP_HP_288PRO_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x19, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+			{ 0x1a, 0x01813030 }, /* use as headphone mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE
+	},
 	[ALC221_FIXUP_HP_MIC_NO_PRESENCE] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {

@@ -7136,6 +7147,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x103c, 0x2335, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x2336, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x2337, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+	SND_PCI_QUIRK(0x103c, 0x2b5e, "HP 288 Pro G2 MT", ALC221_FIXUP_HP_288PRO_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x802e, "HP Z240 SFF", ALC221_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x802f, "HP Z240", ALC221_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x820d, "HP Pavilion 15", ALC269_FIXUP_HP_MUTE_LED_MIC3),

From: Juergen Gross <[email protected]>

commit 94e8100678889ab428e68acadf042de723f094b9 upstream.

xenvif_rx_next_skb() is expecting the rx queue not being empty, but in case the loop in xenvif_rx_action() is doing multiple iterations, the availability of another skb in the rx queue is not being checked.

This can lead to crashes:

[40072.537261] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080
[40072.537407] IP: xenvif_rx_skb+0x23/0x590 [xen_netback]
[40072.537534] PGD 0 P4D 0
[40072.537644] Oops: 0000 [#1] SMP NOPTI
[40072.537749] CPU: 0 PID: 12505 Comm: v1-c40247-q2-gu Not tainted 4.12.14-122.121-default #1 SLE12-SP5
[40072.537867] Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 11/23/2021
[40072.537999] task: ffff880433b38100 task.stack: ffffc90043d40000
[40072.538112] RIP: e030:xenvif_rx_skb+0x23/0x590 [xen_netback]
[40072.538217] RSP: e02b:ffffc90043d43de0 EFLAGS: 00010246
[40072.538319] RAX: 0000000000000000 RBX: ffffc90043cd7cd0 RCX: 00000000000000f7
[40072.538430] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffc90043d43df8
[40072.538531] RBP: 000000000000003f R08: 000077ff80000000 R09: 0000000000000008
[40072.538644] R10: 0000000000007ff0 R11: 00000000000008f6 R12: ffffc90043ce2708
[40072.538745] R13: 0000000000000000 R14: ffffc90043d43ed0 R15: ffff88043ea748c0
[40072.538861] FS: 0000000000000000(0000) GS:ffff880484600000(0000) knlGS:0000000000000000
[40072.538988] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033
[40072.539088] CR2: 0000000000000080 CR3: 0000000407ac8000 CR4: 0000000000040660
[40072.539211] Call Trace:
[40072.539319] xenvif_rx_action+0x71/0x90 [xen_netback]
[40072.539429] xenvif_kthread_guest_rx+0x14a/0x29c [xen_netback]

Fix that by stopping the loop in case the rx queue becomes empty.

---
 drivers/net/xen-netback/rx.c |    1 +
 1 file changed, 1 insertion(+)

@@ -482,6 +482,7 @@ void xenvif_rx_action(struct xenvif_queu
 	queue->rx_copy.completed = &completed_skbs;
 
 	while (xenvif_rx_ring_slots_available(queue) &&
+	       !skb_queue_empty(&queue->rx_queue) &&
 	       work_done < RX_BATCH_SIZE) {
 		xenvif_rx_skb(queue);
 		work_done++;

From: Zheng Yejian <[email protected]>

commit 7edc3945bdce9c39198a10d6129377a5c53559c2 upstream.

This reverts commit 46bbe5c671e06f070428b9be142cc4ee5cedebac.

As commit 46bbe5c671e0 ("tracing: fix double free") said, the "double free" problem reported by clang static analyzer is:

However, if there is a problem allocating N-th var_defs.expr:
+ in parse_var_defs(), the freed 'earlier var_defs.name' is

    actually the N-th var_defs.name;

+ then in free_var_defs(), the names from 0th to (N-1)-th are freed;

                        IF ALLOCATING PROBLEM HAPPENED HERE!!! -+
                                                                 \
                                                                  |
          0th           1th                 (N-1)-th      N-th    V
          +-------------+-------------+-----+-------------+-----------
var_defs: | name | expr | name | expr | ... | name | expr | name | ///
          +-------------+-------------+-----+-------------+-----------

These two frees don't act on same name, so there was no "double free" problem before. Conversely, after that commit, we get a "memory leak" problem because the above "N-th var_defs.name" is not freed.

If enable CONFIG_DEBUG_KMEMLEAK and inject a fault at where the N-th var_defs.expr allocated, then execute on shell like:

  $ echo 'hist:key=call_site:val=$v1,$v2:v1=bytes_req,v2=bytes_alloc' > \
/sys/kernel/debug/tracing/events/kmem/kmalloc/trigger

Then kmemleak reports:
unreferenced object 0xffff8fb100ef3518 (size 8):

    comm "bash", pid 196, jiffies 4295681690 (age 28.538s)
    hex dump (first 8 bytes):
      76 31 00 00 b1 8f ff ff                          v1......
    backtrace:
      [<0000000038fe4895>] kstrdup+0x2d/0x60
      [<00000000c99c049a>] event_hist_trigger_parse+0x206f/0x20e0
      [<00000000ae70d2cc>] trigger_process_regex+0xc0/0x110
      [<0000000066737a4c>] event_trigger_write+0x75/0xd0
      [<000000007341e40c>] vfs_write+0xbb/0x2a0
      [<0000000087fde4c2>] ksys_write+0x59/0xd0
      [<00000000581e9cdf>] do_syscall_64+0x3a/0x80
      [<00000000cf3b065c>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

---
 kernel/trace/trace_events_hist.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -4266,6 +4266,8 @@ static int parse_var_defs(struct hist_tr
 
 			s = kstrdup(field_str, GFP_KERNEL);
 			if (!s) {
+				kfree(hist_data->attrs->var_defs.name[n_vars]);
+				hist_data->attrs->var_defs.name[n_vars] = NULL;
 				ret = -ENOMEM;
 				goto free;
 			}

From: Steven Rostedt (Google) <[email protected]>

commit 820b8963adaea34a87abbecb906d1f54c0aabfb7 upstream.

The trace event sock_exceed_buf_limit saves the prot->sysctl_mem pointer and then dereferences it in the TP_printk() portion. This is unsafe as the TP_printk() portion is executed at the time the buffer is read. That is, it can be seconds, minutes, days, months, even years later. If the proto is freed, then this dereference will can also lead to a kernel crash.

Instead, save the sysctl_mem array into the ring buffer and have the TP_printk() reference that instead. This is the proper and safe way to read pointers in trace events.

---
 include/trace/events/sock.h |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -97,7 +97,7 @@ TRACE_EVENT(sock_exceed_buf_limit,
 
 	TP_STRUCT__entry(
 		__array(char, name, 32)
-		__field(long *, sysctl_mem)
+		__array(long, sysctl_mem, 3)
 		__field(long, allocated)
 		__field(int, sysctl_rmem)
 		__field(int, rmem_alloc)

@@ -109,7 +109,9 @@ TRACE_EVENT(sock_exceed_buf_limit,
 
 	TP_fast_assign(
 		strncpy(__entry->name, prot->name, 32);
-		__entry->sysctl_mem = prot->sysctl_mem;
+		__entry->sysctl_mem[0] = READ_ONCE(prot->sysctl_mem[0]);
+		__entry->sysctl_mem[1] = READ_ONCE(prot->sysctl_mem[1]);
+		__entry->sysctl_mem[2] = READ_ONCE(prot->sysctl_mem[2]);
 		__entry->allocated = allocated;
 		__entry->sysctl_rmem = sk_get_rmem0(sk, prot);
 		__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);

From: Dmitry Osipenko <[email protected]>

commit e4ced82deb5fb17222fb82e092c3f8311955b585 upstream.

Print the message about disabled Spectre workarounds only once. The message is printed each time CPU goes out from idling state on NVIDIA Tegra boards, causing storm in KMSG that makes system unusable.

---
 arch/arm/mm/proc-v7-bugs.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -110,8 +110,7 @@ static unsigned int spectre_v2_install_w
 #else
 static unsigned int spectre_v2_install_workaround(unsigned int method)
 {
-	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
-		smp_processor_id());
+	pr_info_once("Spectre V2: workarounds disabled by configuration\n");
 
 	return SPECTRE_VULNERABLE;
 }

From: Ard Biesheuvel <[email protected]>

commit e5c46fde75e43c15a29b40e5fc5641727f97ae47 upstream.

After emulating a misaligned load or store issued in Thumb mode, we have to advance the IT state by hand, or it will get out of sync with the actual instruction stream, which means we'll end up applying the wrong condition code to subsequent instructions. This might corrupt the program state rather catastrophically.

So borrow the it_advance() helper from the probing code, and use it on CPSR if the emulated instruction is Thumb.

---
 arch/arm/include/asm/ptrace.h |   26 ++++++++++++++++++++++++++
 arch/arm/mm/alignment.c       |    3 +++
 arch/arm/probes/decode.h      |   26 +-------------------------
 3 files changed, 30 insertions(+), 25 deletions(-)

@@ -167,5 +167,31 @@ static inline unsigned long user_stack_p
 		((current_stack_pointer | (THREAD_SIZE - 1)) - 7) - 1;	\
 })
 
+
+/*
+ * Update ITSTATE after normal execution of an IT block instruction.
+ *
+ * The 8 IT state bits are split into two parts in CPSR:
+ *	ITSTATE<1:0> are in CPSR<26:25>
+ *	ITSTATE<7:2> are in CPSR<15:10>
+ */
+static inline unsigned long it_advance(unsigned long cpsr)
+{
+	if ((cpsr & 0x06000400) == 0) {
+		/* ITSTATE<2:0> == 0 means end of IT block, so clear IT state */
+		cpsr &= ~PSR_IT_MASK;
+	} else {
+		/* We need to shift left ITSTATE<4:0> */
+		const unsigned long mask = 0x06001c00;  /* Mask ITSTATE<4:0> */
+		unsigned long it = cpsr & mask;
+		it <<= 1;
+		it |= it >> (27 - 10);  /* Carry ITSTATE<2> to correct place */
+		it &= mask;
+		cpsr &= ~mask;
+		cpsr |= it;
+	}
+	return cpsr;
+}
+
 #endif /* __ASSEMBLY__ */
 #endif

@@ -936,6 +936,9 @@ do_alignment(unsigned long addr, unsigne
 	if (type == TYPE_LDST)
 		do_alignment_finish_ldst(addr, instr, regs, offset);
 
+	if (thumb_mode(regs))
+		regs->ARM_cpsr = it_advance(regs->ARM_cpsr);
+
 	return 0;
 
  bad_or_fault:

@@ -22,6 +22,7 @@
 #include <linux/types.h>
 #include <linux/stddef.h>
 #include <asm/probes.h>
+#include <asm/ptrace.h>
 #include <asm/kprobes.h>
 
 void __init arm_probes_decode_init(void);

@@ -43,31 +44,6 @@ void __init find_str_pc_offset(void);
 #endif
 
 
-/*
- * Update ITSTATE after normal execution of an IT block instruction.
- *
- * The 8 IT state bits are split into two parts in CPSR:
- *	ITSTATE<1:0> are in CPSR<26:25>
- *	ITSTATE<7:2> are in CPSR<15:10>
- */
-static inline unsigned long it_advance(unsigned long cpsr)
-	{
-	if ((cpsr & 0x06000400) == 0) {
-		/* ITSTATE<2:0> == 0 means end of IT block, so clear IT state */
-		cpsr &= ~PSR_IT_MASK;
-	} else {
-		/* We need to shift left ITSTATE<4:0> */
-		const unsigned long mask = 0x06001c00;  /* Mask ITSTATE<4:0> */
-		unsigned long it = cpsr & mask;
-		it <<= 1;
-		it |= it >> (27 - 10);  /* Carry ITSTATE<2> to correct place */
-		it &= mask;
-		cpsr &= ~mask;
-		cpsr |= it;
-	}
-	return cpsr;
-}
-
 static inline void __kprobes bx_write_pc(long pcv, struct pt_regs *regs)
 {
 	long cpsr = regs->ARM_cpsr;

From: Tejun Heo <[email protected]>

commit 07fd5b6cdf3cc30bfde8fe0f644771688be04447 upstream.

Each cset (css_set) is pinned by its tasks. When we're moving tasks around across csets for a migration, we need to hold the source and destination csets to ensure that they don't go away while we're moving tasks about. This is done by linking cset->mg_preload_node on either the mgctx->preloaded_src_csets or mgctx->preloaded_dst_csets list. Using the same cset->mg_preload_node for both the src and dst lists was deemed okay as a cset can't be both the source and destination at the same time.

Unfortunately, this overloading becomes problematic when multiple tasks are involved in a migration and some of them are identity noop migrations while others are actually moving across cgroups. For example, this can happen with the following sequence on cgroup1:

#1> mkdir -p /sys/fs/cgroup/misc/a/b
#2> echo $$ > /sys/fs/cgroup/misc/a/cgroup.procs #3> RUN_A_COMMAND_WHICH_CREATES_MULTIPLE_THREADS & #4> PID=$!
#5> echo $PID > /sys/fs/cgroup/misc/a/b/tasks #6> echo $PID > /sys/fs/cgroup/misc/a/cgroup.procs

the process including the group leader back into a. In this final migration, non-leader threads would be doing identity migration while the group leader is doing an actual one.

After #3, let's say the whole process was in cset A, and that after #4, the leader moves to cset B. Then, during #6, the following happens:

1. cgroup_migrate_add_src() is called on B for the leader.

2. cgroup_migrate_add_src() is called on A for the other threads.

3. cgroup_migrate_prepare_dst() is called. It scans the src list.

4. It notices that B wants to migrate to A, so it tries to A to the dst

    list but realizes that its ->mg_preload_node is already busy.

5. and then it notices A wants to migrate to A as it's an identity migration, it culls it by list_del_init()'ing its ->mg_preload_node and putting references accordingly.

6. The rest of migration takes place with B on the src list but nothing on the dst list.

This means that A isn't held while migration is in progress. If all tasks leave A before the migration finishes and the incoming task pins it, the cset will be destroyed leading to use-after-free.

This is caused by overloading cset->mg_preload_node for both src and dst preload lists. We wanted to exclude the cset from the src list but ended up inadvertently excluding it from the dst list too.

This patch fixes the issue by separating out cset->mg_preload_node into ->mg_src_preload_node and ->mg_dst_preload_node, so that the src and dst preloadings don't interfere with each other.

---
 include/linux/cgroup-defs.h |    3 ++-
 kernel/cgroup/cgroup.c      |   37 +++++++++++++++++++++++--------------
 2 files changed, 25 insertions(+), 15 deletions(-)

@@ -241,7 +241,8 @@ struct css_set {
 	 * List of csets participating in the on-going migration either as
 	 * source or destination.  Protected by cgroup_mutex.
 	 */
-	struct list_head mg_preload_node;
+	struct list_head mg_src_preload_node;
+	struct list_head mg_dst_preload_node;
 	struct list_head mg_node;
 
 	/*

@@ -677,7 +677,8 @@ struct css_set init_css_set = {
 	.task_iters		= LIST_HEAD_INIT(init_css_set.task_iters),
 	.threaded_csets		= LIST_HEAD_INIT(init_css_set.threaded_csets),
 	.cgrp_links		= LIST_HEAD_INIT(init_css_set.cgrp_links),
-	.mg_preload_node	= LIST_HEAD_INIT(init_css_set.mg_preload_node),
+	.mg_src_preload_node	= LIST_HEAD_INIT(init_css_set.mg_src_preload_node),
+	.mg_dst_preload_node	= LIST_HEAD_INIT(init_css_set.mg_dst_preload_node),
 	.mg_node		= LIST_HEAD_INIT(init_css_set.mg_node),
 
 	/*

@@ -1151,7 +1152,8 @@ static struct css_set *find_css_set(stru
 	INIT_LIST_HEAD(&cset->threaded_csets);
 	INIT_HLIST_NODE(&cset->hlist);
 	INIT_LIST_HEAD(&cset->cgrp_links);
-	INIT_LIST_HEAD(&cset->mg_preload_node);
+	INIT_LIST_HEAD(&cset->mg_src_preload_node);
+	INIT_LIST_HEAD(&cset->mg_dst_preload_node);
 	INIT_LIST_HEAD(&cset->mg_node);
 
 	/* Copy the set of subsystem state objects generated in

@@ -2455,21 +2457,27 @@ int cgroup_migrate_vet_dst(struct cgroup
  */
 void cgroup_migrate_finish(struct cgroup_mgctx *mgctx)
 {
-	LIST_HEAD(preloaded);
 	struct css_set *cset, *tmp_cset;
 
 	lockdep_assert_held(&cgroup_mutex);
 
 	spin_lock_irq(&css_set_lock);
 
-	list_splice_tail_init(&mgctx->preloaded_src_csets, &preloaded);
-	list_splice_tail_init(&mgctx->preloaded_dst_csets, &preloaded);
+	list_for_each_entry_safe(cset, tmp_cset, &mgctx->preloaded_src_csets,
+				 mg_src_preload_node) {
+		cset->mg_src_cgrp = NULL;
+		cset->mg_dst_cgrp = NULL;
+		cset->mg_dst_cset = NULL;
+		list_del_init(&cset->mg_src_preload_node);
+		put_css_set_locked(cset);
+	}
 
-	list_for_each_entry_safe(cset, tmp_cset, &preloaded, mg_preload_node) {
+	list_for_each_entry_safe(cset, tmp_cset, &mgctx->preloaded_dst_csets,
+				 mg_dst_preload_node) {
 		cset->mg_src_cgrp = NULL;
 		cset->mg_dst_cgrp = NULL;
 		cset->mg_dst_cset = NULL;
-		list_del_init(&cset->mg_preload_node);
+		list_del_init(&cset->mg_dst_preload_node);
 		put_css_set_locked(cset);
 	}
 

@@ -2511,7 +2519,7 @@ void cgroup_migrate_add_src(struct css_s
 
 	src_cgrp = cset_cgroup_from_root(src_cset, dst_cgrp->root);
 
-	if (!list_empty(&src_cset->mg_preload_node))
+	if (!list_empty(&src_cset->mg_src_preload_node))
 		return;
 
 	WARN_ON(src_cset->mg_src_cgrp);

@@ -2522,7 +2530,7 @@ void cgroup_migrate_add_src(struct css_s
 	src_cset->mg_src_cgrp = src_cgrp;
 	src_cset->mg_dst_cgrp = dst_cgrp;
 	get_css_set(src_cset);
-	list_add_tail(&src_cset->mg_preload_node, &mgctx->preloaded_src_csets);
+	list_add_tail(&src_cset->mg_src_preload_node, &mgctx->preloaded_src_csets);
 }
 
 /**

@@ -2547,7 +2555,7 @@ int cgroup_migrate_prepare_dst(struct cg
 
 	/* look up the dst cset for each src cset and link it to src */
 	list_for_each_entry_safe(src_cset, tmp_cset, &mgctx->preloaded_src_csets,
-				 mg_preload_node) {
+				 mg_src_preload_node) {
 		struct css_set *dst_cset;
 		struct cgroup_subsys *ss;
 		int ssid;

@@ -2566,7 +2574,7 @@ int cgroup_migrate_prepare_dst(struct cg
 		if (src_cset == dst_cset) {
 			src_cset->mg_src_cgrp = NULL;
 			src_cset->mg_dst_cgrp = NULL;
-			list_del_init(&src_cset->mg_preload_node);
+			list_del_init(&src_cset->mg_src_preload_node);
 			put_css_set(src_cset);
 			put_css_set(dst_cset);
 			continue;

@@ -2574,8 +2582,8 @@ int cgroup_migrate_prepare_dst(struct cg
 
 		src_cset->mg_dst_cset = dst_cset;
 
-		if (list_empty(&dst_cset->mg_preload_node))
-			list_add_tail(&dst_cset->mg_preload_node,
+		if (list_empty(&dst_cset->mg_dst_preload_node))
+			list_add_tail(&dst_cset->mg_dst_preload_node,
 				      &mgctx->preloaded_dst_csets);
 		else
 			put_css_set(dst_cset);

@@ -2809,7 +2817,8 @@ static int cgroup_update_dfl_csses(struc
 		goto out_finish;
 
 	spin_lock_irq(&css_set_lock);
-	list_for_each_entry(src_cset, &mgctx.preloaded_src_csets, mg_preload_node) {
+	list_for_each_entry(src_cset, &mgctx.preloaded_src_csets,
+			    mg_src_preload_node) {
 		struct task_struct *task, *ntask;
 
 		/* all tasks in src_csets need to be migrated */

From: Ryusuke Konishi <[email protected]>

commit 5924e6ec1585445f251ea92713eb15beb732622a upstream.

The permission flags of newly created symlinks are wrongly dropped on nilfs2 with the current umask value even though symlinks should have 777 (rwxrwxrwx) permissions:

 $ umask
 0022
 $ touch file && ln -s file symlink; ls -l file symlink
 -rw-r--r--. 1 root root 0 Jun 23 16:29 file
 lrwxr-xr-x. 1 root root 4 Jun 23 16:29 symlink -> file

This fixes the bug by inserting a missing check that excludes symlinks.

---
 fs/nilfs2/nilfs.h |    3 +++
 1 file changed, 3 insertions(+)

@@ -198,6 +198,9 @@ static inline int nilfs_acl_chmod(struct
 
 static inline int nilfs_init_acl(struct inode *inode, struct inode *dir)
 {
+	if (S_ISLNK(inode->i_mode))
+		return 0;
+
 	inode->i_mode &= ~current_umask();
 	return 0;
 }

From: Kris Bahnsen <[email protected]>

[ Upstream commit e95ea0f687e679fcb0a3a67d0755b81ee7d60db0 ]

Device-tree incorrectly used "ngpio" which caused the driver to fallback to 32 ngpios.

This platform has 62 GPIO registers.

---
 arch/arm/boot/dts/imx6qdl-ts7970.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index f0be516dc28e..9181fbeb833d 100644
@@ -226,7 +226,7 @@ gpio8: gpio@28 {
 		reg = <0x28>;
 		#gpio-cells = <2>;
 		gpio-controller;
-		ngpio = <32>;
+		ngpios = <62>;
 	};
 
 	sgtl5000: codec@a {

2.35.1

From: Ard Biesheuvel <[email protected]>

[ Upstream commit 0609e200246bfd3b7516091c491bec4308349055 ]

Jon reports that the Spectre-BHB init code is filling up the kernel log with spurious notifications about which mitigation has been enabled, every time any CPU comes out of a low power state.

Given that Spectre-BHB mitigations are system wide, only a single mitigation can be enabled, and we already print an error if two types of CPUs coexist in a single system that require different Spectre-BHB mitigations.

This means that the pr_info() that describes the selected mitigation does not need to be emitted for each CPU anyway, and so we can simply emit it only once.

In order to clarify the above in the log message, update it to describe that the selected mitigation will be enabled on all CPUs, including ones that are unaffected. If another CPU comes up later that is affected and requires a different mitigation, we report an error as before.

---
 arch/arm/mm/proc-v7-bugs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

index 40fb2900038e..e53f824a2583 100644
@@ -222,10 +222,10 @@ static int spectre_bhb_install_workaround(int method)
 			return SPECTRE_VULNERABLE;
 
 		spectre_bhb_method = method;
-	}
 
-	pr_info("CPU%u: Spectre BHB: using %s workaround\n",
-		smp_processor_id(), spectre_bhb_method_name(method));
+		pr_info("CPU%u: Spectre BHB: enabling %s workaround for all CPUs\n",
+			smp_processor_id(), spectre_bhb_method_name(method));
+	}
 
 	return SPECTRE_MITIGATED;
 }

2.35.1

From: Francesco Dolcini <[email protected]>

[ Upstream commit 040e3360af3736348112d29425bf5d0be5b93115 ]

Put the SGTL5000 in a silent/safe state on shutdown/remove, this is required since the SGTL5000 produces a constant noise on its output after it is configured and its clock is removed. Without this change this is happening every time the module is unbound/removed or from reboot till the clock is enabled again.

The issue was experienced on both a Toradex Colibri/Apalis iMX6, but can be easily reproduced everywhere just playing something on the codec and after that removing/unbinding the driver.

---
 sound/soc/codecs/sgtl5000.c | 9 +++++++++
 sound/soc/codecs/sgtl5000.h | 1 +
 2 files changed, 10 insertions(+)

index 17255e9683f5..13e752f8b3f7 100644
@@ -1769,6 +1769,9 @@ static int sgtl5000_i2c_remove(struct i2c_client *client)
 {
 	struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client);
 
+	regmap_write(sgtl5000->regmap, SGTL5000_CHIP_DIG_POWER, SGTL5000_DIG_POWER_DEFAULT);
+	regmap_write(sgtl5000->regmap, SGTL5000_CHIP_ANA_POWER, SGTL5000_ANA_POWER_DEFAULT);
+
 	clk_disable_unprepare(sgtl5000->mclk);
 	regulator_bulk_disable(sgtl5000->num_supplies, sgtl5000->supplies);
 	regulator_bulk_free(sgtl5000->num_supplies, sgtl5000->supplies);

@@ -1776,6 +1779,11 @@ static int sgtl5000_i2c_remove(struct i2c_client *client)
 	return 0;
 }
 
+static void sgtl5000_i2c_shutdown(struct i2c_client *client)
+{
+	sgtl5000_i2c_remove(client);
+}
+
 static const struct i2c_device_id sgtl5000_id[] = {
 	{"sgtl5000", 0},
 	{},

@@ -1796,6 +1804,7 @@ static struct i2c_driver sgtl5000_i2c_driver = {
 		   },
 	.probe = sgtl5000_i2c_probe,
 	.remove = sgtl5000_i2c_remove,
+	.shutdown = sgtl5000_i2c_shutdown,
 	.id_table = sgtl5000_id,
 };
 

index 066517e352a7..0ed4bad92cd1 100644
@@ -80,6 +80,7 @@
 /*
  * SGTL5000_CHIP_DIG_POWER
  */
+#define SGTL5000_DIG_POWER_DEFAULT		0x0000
 #define SGTL5000_ADC_EN				0x0040
 #define SGTL5000_DAC_EN				0x0020
 #define SGTL5000_DAP_POWERUP			0x0010

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit 3d32edf1f3c38d3301f6434e56316f293466d7fb ]

While reading inetpeer sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

---
 net/ipv4/inetpeer.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

index ff327a62c9ce..a18668552d33 100644
@@ -148,16 +148,20 @@ static void inet_peer_gc(struct inet_peer_base *base,
 			 struct inet_peer *gc_stack[],
 			 unsigned int gc_cnt)
 {
+	int peer_threshold, peer_maxttl, peer_minttl;
 	struct inet_peer *p;
 	__u32 delta, ttl;
 	int i;
 
-	if (base->total >= inet_peer_threshold)
+	peer_threshold = READ_ONCE(inet_peer_threshold);
+	peer_maxttl = READ_ONCE(inet_peer_maxttl);
+	peer_minttl = READ_ONCE(inet_peer_minttl);
+
+	if (base->total >= peer_threshold)
 		ttl = 0; /* be aggressive */
 	else
-		ttl = inet_peer_maxttl
-				- (inet_peer_maxttl - inet_peer_minttl) / HZ *
-					base->total / inet_peer_threshold * HZ;
+		ttl = peer_maxttl - (peer_maxttl - peer_minttl) / HZ *
+			base->total / peer_threshold * HZ;
 	for (i = 0; i < gc_cnt; i++) {
 		p = gc_stack[i];
 

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit 310731e2f1611d1d13aae237abcf8e66d33345d5 ]

While reading .sysctl_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

---
 include/net/sock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 7d3a4c2eea95..98946f90781d 100644
@@ -1381,7 +1381,7 @@ void __sk_mem_reclaim(struct sock *sk, int amount);
 /* sysctl_mem values are in pages, we convert them in SK_MEM_QUANTUM units */
 static inline long sk_prot_mem_limits(const struct sock *sk, int index)
 {
-	long val = sk->sk_prot->sysctl_mem[index];
+	long val = READ_ONCE(sk->sk_prot->sysctl_mem[index]);
 
 #if PAGE_SIZE > SK_MEM_QUANTUM
 	val <<= PAGE_SHIFT - SK_MEM_QUANTUM_SHIFT;

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit dd44f04b9214adb68ef5684ae87a81ba03632250 ]

While reading cipso sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

---
 Documentation/networking/ip-sysctl.txt |  2 +-
 net/ipv4/cipso_ipv4.c                  | 12 +++++++-----
 2 files changed, 8 insertions(+), 6 deletions(-)

index 3c617d620b6f..ae56957f51e4 100644
@@ -810,7 +810,7 @@ cipso_cache_enable - BOOLEAN
 cipso_cache_bucket_size - INTEGER
 	The CIPSO label cache consists of a fixed size hash table with each
 	hash bucket containing a number of cache entries.  This variable limits
-	the number of entries in each hash bucket; the larger the value the
+	the number of entries in each hash bucket; the larger the value is, the
 	more CIPSO label mappings that can be cached.  When the number of
 	entries in a given hash bucket reaches this limit adding new entries
 	causes the oldest entry in the bucket to be removed to make room.

index e8b8dd1cb157..8dcf9aec7b77 100644
@@ -254,7 +254,7 @@ static int cipso_v4_cache_check(const unsigned char *key,
 	struct cipso_v4_map_cache_entry *prev_entry = NULL;
 	u32 hash;
 
-	if (!cipso_v4_cache_enabled)
+	if (!READ_ONCE(cipso_v4_cache_enabled))
 		return -ENOENT;
 
 	hash = cipso_v4_map_cache_hash(key, key_len);

@@ -311,13 +311,14 @@ static int cipso_v4_cache_check(const unsigned char *key,
 int cipso_v4_cache_add(const unsigned char *cipso_ptr,
 		       const struct netlbl_lsm_secattr *secattr)
 {
+	int bkt_size = READ_ONCE(cipso_v4_cache_bucketsize);
 	int ret_val = -EPERM;
 	u32 bkt;
 	struct cipso_v4_map_cache_entry *entry = NULL;
 	struct cipso_v4_map_cache_entry *old_entry = NULL;
 	u32 cipso_ptr_len;
 
-	if (!cipso_v4_cache_enabled || cipso_v4_cache_bucketsize <= 0)
+	if (!READ_ONCE(cipso_v4_cache_enabled) || bkt_size <= 0)
 		return 0;
 
 	cipso_ptr_len = cipso_ptr[1];

@@ -337,7 +338,7 @@ int cipso_v4_cache_add(const unsigned char *cipso_ptr,
 
 	bkt = entry->hash & (CIPSO_V4_CACHE_BUCKETS - 1);
 	spin_lock_bh(&cipso_v4_cache[bkt].lock);
-	if (cipso_v4_cache[bkt].size < cipso_v4_cache_bucketsize) {
+	if (cipso_v4_cache[bkt].size < bkt_size) {
 		list_add(&entry->list, &cipso_v4_cache[bkt].list);
 		cipso_v4_cache[bkt].size += 1;
 	} else {

@@ -1214,7 +1215,8 @@ static int cipso_v4_gentag_rbm(const struct cipso_v4_doi *doi_def,
 		/* This will send packets using the "optimized" format when
 		 * possible as specified in  section 3.4.2.6 of the
 		 * CIPSO draft. */
-		if (cipso_v4_rbm_optfmt && ret_val > 0 && ret_val <= 10)
+		if (READ_ONCE(cipso_v4_rbm_optfmt) && ret_val > 0 &&
+		    ret_val <= 10)
 			tag_len = 14;
 		else
 			tag_len = 4 + ret_val;

@@ -1617,7 +1619,7 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option)
 			 * all the CIPSO validations here but it doesn't
 			 * really specify _exactly_ what we need to validate
 			 * ... so, just make it a sysctl tunable. */
-			if (cipso_v4_rbm_strictvalid) {
+			if (READ_ONCE(cipso_v4_rbm_strictvalid)) {
 				if (cipso_v4_map_lvl_valid(doi_def,
 							   tag[3]) < 0) {
 					err_offset = opt_iter + 3;

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit 48d7ee321ea5182c6a70782aa186422a70e67e22 ]

While reading icmp sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

---
 net/ipv4/icmp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

index fe10a565b7d8..953cc70851cf 100644
@@ -266,11 +266,12 @@ bool icmp_global_allow(void)
 	spin_lock(&icmp_global.lock);
 	delta = min_t(u32, now - icmp_global.stamp, HZ);
 	if (delta >= HZ / 50) {
-		incr = sysctl_icmp_msgs_per_sec * delta / HZ ;
+		incr = READ_ONCE(sysctl_icmp_msgs_per_sec) * delta / HZ;
 		if (incr)
 			WRITE_ONCE(icmp_global.stamp, now);
 	}
-	credit = min_t(u32, icmp_global.credit + incr, sysctl_icmp_msgs_burst);
+	credit = min_t(u32, icmp_global.credit + incr,
+		       READ_ONCE(sysctl_icmp_msgs_burst));
 	if (credit) {
 		/* We want to use a credit of one in average, but need to randomize
 		 * it for security reasons.

2.35.1

From: Michal Suchanek <[email protected]>

[ Upstream commit 884b66976a7279ee889ba885fe364244d50b79e7 ]

The device tree should include generic "jedec,spi-nor" compatible, and a manufacturer-specific one.
The macronix part is what is shipped on the boards that come with a flash chip.

---
 arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 84cd9c061227..afc94dbc0752 100644
@@ -170,7 +170,7 @@ &spi0 {
 	flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "mxicy,mx25l1606e", "winbond,w25q128";
+		compatible = "mxicy,mx25l1606e", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
 	};

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit 2a4eb714841f288cf51c7d942d98af6a8c6e4b01 ]

While reading sysctl_icmp_ratelimit, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.

---
 net/ipv4/icmp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

index 953cc70851cf..eb29da8971e1 100644
@@ -333,7 +333,8 @@ static bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt,
 
 	vif = l3mdev_master_ifindex(dst->dev);
 	peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, vif, 1);
-	rc = inet_peer_xrlim_allow(peer, net->ipv4.sysctl_icmp_ratelimit);
+	rc = inet_peer_xrlim_allow(peer,
+				   READ_ONCE(net->ipv4.sysctl_icmp_ratelimit));
 	if (peer)
 		inet_putpeer(peer);
 out:

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit 1ebcb25ad6fc3d50fca87350acf451b9a66dd31e ]

While reading sysctl_icmp_ratemask, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.

---
 net/ipv4/icmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index eb29da8971e1..aa179e6461e1 100644
@@ -295,7 +295,7 @@ static bool icmpv4_mask_allow(struct net *net, int type, int code)
 		return true;
 
 	/* Limit if icmp type is enabled in ratemask. */
-	if (!((1 << type) & net->ipv4.sysctl_icmp_ratemask))
+	if (!((1 << type) & READ_ONCE(net->ipv4.sysctl_icmp_ratemask)))
 		return true;
 
 	return false;

2.35.1

From: Kuniyuki Iwashima <[email protected]>

[ Upstream commit e49e4aff7ec19b2d0d0957ee30e93dade57dab9e ]

While reading sysctl_ip_dynaddr, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

---
 Documentation/networking/ip-sysctl.txt | 2 +-
 net/ipv4/af_inet.c                     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

index ae56957f51e4..e315e6052b9f 100644
@@ -887,7 +887,7 @@ ip_nonlocal_bind - BOOLEAN
 	which can be quite useful - but may break some applications.
 	Default: 0
 
-ip_dynaddr - BOOLEAN
+ip_dynaddr - INTEGER
 	If set non-zero, enables support for dynamic addresses.
 	If set to a non-zero value larger than 1, a kernel log
 	message will be printed when dynamic address rewriting

index d8c22246629a..dadd42a07c07 100644
@@ -1209,7 +1209,7 @@ static int inet_sk_reselect_saddr(struct sock *sk)
 	if (new_saddr == old_saddr)
 		return 0;
 
-	if (sock_net(sk)->ipv4.sysctl_ip_dynaddr > 1) {
+	if (READ_ONCE(sock_net(sk)->ipv4.sysctl_ip_dynaddr) > 1) {
 		pr_info("%s(): shifting inet->saddr from %pI4 to %pI4\n",
 			__func__, &old_saddr, &new_saddr);
 	}

@@ -1264,7 +1264,7 @@ int inet_sk_rebuild_header(struct sock *sk)
 		 * Other protocols have to map its equivalent state to TCP_SYN_SENT.
 		 * DCCP maps its DCCP_REQUESTING state to TCP_SYN_SENT. -acme
 		 */
-		if (!sock_net(sk)->ipv4.sysctl_ip_dynaddr ||
+		if (!READ_ONCE(sock_net(sk)->ipv4.sysctl_ip_dynaddr) ||
 		    sk->sk_state != TCP_SYN_SENT ||
 		    (sk->sk_userlocks & SOCK_BINDADDR_LOCK) ||
 		    (err = inet_sk_reselect_saddr(sk)) != 0)

2.35.1

From: Íñigo Huguet <[email protected]>

[ Upstream commit ebe41da5d47ac0fff877e57bd14c54dccf168827 ]

Use after free is detected by kfence when disabling sriov. What was read after being freed was vf->pci_dev: it was freed from pci_disable_sriov and later read in efx_ef10_sriov_free_vf_vports, called from efx_ef10_sriov_free_vf_vswitching.

Set the pointer to NULL at release time to not trying to read it later.

Reproducer and dmesg log (note that kfence doesn't detect it every time):

$ echo 1 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs
$ echo 0 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs

 BUG: KFENCE: use-after-free read in efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]

Use-after-free read at 0x00000000ff3c1ba5 (in kfence-#224):

  efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]
  efx_ef10_pci_sriov_disable+0x38/0x70 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xfe/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

kfence-#224: 0x00000000edb8ef95-0x00000000671f5ce1, size=2792, cache=kmalloc-4k

allocated by task 6771 on cpu 10 at 3137.860196s:

  pci_alloc_dev+0x21/0x60
  pci_iov_add_virtfn+0x2a2/0x320
  sriov_enable+0x212/0x3e0
  efx_ef10_sriov_configure+0x67/0x80 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xba/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

freed by task 6771 on cpu 12 at 3170.991309s:

  device_release+0x34/0x90
  kobject_cleanup+0x3a/0x130
  pci_iov_remove_virtfn+0xd9/0x120
  sriov_disable+0x30/0xe0
  efx_ef10_pci_sriov_disable+0x57/0x70 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xfe/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

---
 drivers/net/ethernet/sfc/ef10_sriov.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

index f074986a13b1..fc3cb26f7112 100644
@@ -415,8 +415,9 @@ static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs)
 static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
 {
 	struct pci_dev *dev = efx->pci_dev;
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
 	unsigned int vfs_assigned = pci_vfs_assigned(dev);
-	int rc = 0;
+	int i, rc = 0;
 
 	if (vfs_assigned && !force) {
 		netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; "

@@ -424,10 +425,13 @@ static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
 		return -EBUSY;
 	}
 
-	if (!vfs_assigned)
+	if (!vfs_assigned) {
+		for (i = 0; i < efx->vf_count; i++)
+			nic_data->vf[i].pci_dev = NULL;
 		pci_disable_sriov(dev);
-	else
+	} else {
 		rc = -EBUSY;
+	}
 
 	efx_ef10_sriov_free_vf_vswitching(efx);
 	efx->vf_count = 0;

2.35.1

From: Andrea Mayer <[email protected]>

[ Upstream commit df8386d13ea280d55beee1b95f61a59234a3798b ]

Support for SRH encapsulation and insertion was introduced with commit 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels"), through the seg6_do_srh_encap() and seg6_do_srh_inline() functions, respectively.
The former encapsulates the packet in an outer IPv6 header along with the SRH, while the latter inserts the SRH between the IPv6 header and the payload. Then, the headers are initialized/updated according to the operating mode (i.e., encap/inline).
Finally, the skb checksum is calculated to reflect the changes applied to the headers.

The IPv6 payload length ('payload_len') is not initialized within seg6_do_srh_{inline,encap}() but is deferred in seg6_do_srh(), i.e. the caller of seg6_do_srh_{inline,encap}().
However, this operation invalidates the skb checksum, since the 'payload_len' is updated only after the checksum is evaluated.

To solve this issue, the initialization of the IPv6 payload length is moved from seg6_do_srh() directly into the seg6_do_srh_{inline,encap}() functions and before the skb checksum update takes place.

---
 net/ipv6/seg6_iptunnel.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

index 26882fd9323a..2e90672852c8 100644
@@ -176,6 +176,8 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
 	}
 #endif
 
+	hdr->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
+
 	skb_postpush_rcsum(skb, hdr, tot_len);
 
 	return 0;

@@ -228,6 +230,8 @@ int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
 	}
 #endif
 
+	hdr->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
+
 	skb_postpush_rcsum(skb, hdr, sizeof(struct ipv6hdr) + hdrlen);
 
 	return 0;

@@ -289,7 +293,6 @@ static int seg6_do_srh(struct sk_buff *skb)
 		break;
 	}
 
-	ipv6_hdr(skb)->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
 	skb_set_transport_header(skb, sizeof(struct ipv6hdr));
 
 	return 0;

2.35.1

From: Andrea Mayer <[email protected]>

[ Upstream commit f048880fc77058d864aff5c674af7918b30f312a ]

The SRv6 End.B6 and End.B6.Encaps behaviors rely on functions seg6_do_srh_{encap,inline}() to, respectively: i) encapsulate the packet within an outer IPv6 header with the specified Segment Routing Header (SRH); ii) insert the specified SRH directly after the IPv6 header of the packet.

This patch removes the initialization of the IPv6 header payload length from the input_action_end_b6{_encap}() functions, as it is now handled properly by seg6_do_srh_{encap,inline}() to avoid corruption of the skb checksum.

---
 net/ipv6/seg6_local.c | 2 --
 1 file changed, 2 deletions(-)

index 607709a8847c..18970f6a68c6 100644
@@ -415,7 +415,6 @@ static int input_action_end_b6(struct sk_buff *skb, struct seg6_local_lwt *slwt)
 	if (err)
 		goto drop;
 
-	ipv6_hdr(skb)->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
 	skb_set_transport_header(skb, sizeof(struct ipv6hdr));
 
 	seg6_lookup_nexthop(skb, NULL, 0);

@@ -447,7 +446,6 @@ static int input_action_end_b6_encap(struct sk_buff *skb,
 	if (err)
 		goto drop;
 
-	ipv6_hdr(skb)->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
 	skb_set_transport_header(skb, sizeof(struct ipv6hdr));
 
 	seg6_lookup_nexthop(skb, NULL, 0);

2.35.1

From: Andrea Mayer <[email protected]>

[ Upstream commit 4889fbd98deaf243c3baadc54e296d71c6af1eb0 ]

Both helper functions bpf_lwt_seg6_action() and bpf_lwt_push_encap() use the bpf_push_seg6_encap() to encapsulate the packet in an IPv6 with Segment Routing Header (SRH) or insert an SRH between the IPv6 header and the payload.
To achieve this result, such helper functions rely on bpf_push_seg6_encap() which, in turn, leverages seg6_do_srh_{encap,inline}() to perform the required operation (i.e. encap/inline).

This patch removes the initialization of the IPv6 header payload length from bpf_push_seg6_encap(), as it is now handled properly by seg6_do_srh_{encap,inline}() to prevent corruption of the skb checksum.

---
 net/core/filter.c | 1 -
 1 file changed, 1 deletion(-)

index c1310c9d1b90..5129e89f52bb 100644
@@ -4570,7 +4570,6 @@ static int bpf_push_seg6_encap(struct sk_buff *skb, u32 type, void *hdr, u32 len
 	if (err)
 		return err;
 
-	ipv6_hdr(skb)->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
 	skb_set_transport_header(skb, sizeof(struct ipv6hdr));
 
 	return seg6_lookup_nexthop(skb, NULL, 0);

2.35.1

From: Íñigo Huguet <[email protected]>

[ Upstream commit ada74c5539eba06cf8b47d068f92e0b3963a9a6e ]

When creating VFs a kernel panic can happen when calling to efx_ef10_try_update_nic_stats_vf.

When releasing a DMA coherent buffer, sometimes, I don't know in what specific circumstances, it has to unmap memory with vunmap. It is disallowed to do that in IRQ context or with BH disabled. Otherwise, we hit this line in vunmap, causing the crash:
BUG_ON(in_interrupt());

This patch reenables BH to release the buffer.

Log messages when the bug is hit:
kernel BUG at mm/vmalloc.c:2727!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

 CPU: 6 PID: 1462 Comm: NetworkManager Kdump: loaded Tainted: G          I      --------- ---  5.14.0-119.el9.x86_64 #1
 Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.8.2 08/27/2020
 RIP: 0010:vunmap+0x2e/0x30
 ...skip...
 Call Trace:
  __iommu_dma_free+0x96/0x100
  efx_nic_free_buffer+0x2b/0x40 [sfc]
  efx_ef10_try_update_nic_stats_vf+0x14a/0x1c0 [sfc]
  efx_ef10_update_stats_vf+0x18/0x40 [sfc]
  efx_start_all+0x15e/0x1d0 [sfc]
  efx_net_open+0x5a/0xe0 [sfc]
  __dev_open+0xe7/0x1a0
  __dev_change_flags+0x1d7/0x240
  dev_change_flags+0x21/0x60
  ...skip...

---
 drivers/net/ethernet/sfc/ef10.c | 3 +++
 1 file changed, 3 insertions(+)

index 6b0a4dc1ced1..5462827d9cbb 100644
@@ -2059,7 +2059,10 @@ static int efx_ef10_try_update_nic_stats_vf(struct efx_nic *efx)
 
 	efx_update_sw_stats(efx, stats);
 out:
+	/* releasing a DMA coherent buffer with BH disabled can panic */
+	spin_unlock_bh(&efx->stats_lock);
 	efx_nic_free_buffer(efx, &stats_buf);
+	spin_lock_bh(&efx->stats_lock);
 	return rc;
 }
 

2.35.1

From: Stephan Gerhold <[email protected]>

[ Upstream commit ed7ac37fde33ccd84e4bd2b9363c191f925364c7 ]

Most virtio drivers provide freeze/restore callbacks to finish up device usage before suspend and to reinitialize the virtio device after resume. However, these callbacks are currently only called when using virtio_pci. virtio_mmio does not have any PM ops defined.

This causes problems for example after suspend to disk (hibernation), since the virtio devices might lose their state after the VMM is restarted. Calling virtio_device_freeze()/restore() ensures that the virtio devices are re-initialized correctly.

Fix this by implementing the dev_pm_ops for virtio_mmio, similar to virtio_pci_common.

Message-Id: <[email protected]>

---
 drivers/virtio/virtio_mmio.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

index c69c755bf553..79474bd0c52c 100644
@@ -66,6 +66,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/virtio.h>

@@ -508,6 +509,25 @@ static const struct virtio_config_ops virtio_mmio_config_ops = {
 	.bus_name	= vm_bus_name,
 };
 
+#ifdef CONFIG_PM_SLEEP
+static int virtio_mmio_freeze(struct device *dev)
+{
+	struct virtio_mmio_device *vm_dev = dev_get_drvdata(dev);
+
+	return virtio_device_freeze(&vm_dev->vdev);
+}
+
+static int virtio_mmio_restore(struct device *dev)
+{
+	struct virtio_mmio_device *vm_dev = dev_get_drvdata(dev);
+
+	return virtio_device_restore(&vm_dev->vdev);
+}
+
+static const struct dev_pm_ops virtio_mmio_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(virtio_mmio_freeze, virtio_mmio_restore)
+};
+#endif
 
 static void virtio_mmio_release_dev(struct device *_d)
 {

@@ -761,6 +781,9 @@ static struct platform_driver virtio_mmio_driver = {
 		.name	= "virtio-mmio",
 		.of_match_table	= virtio_mmio_match,
 		.acpi_match_table = ACPI_PTR(virtio_mmio_acpi_match),
+#ifdef CONFIG_PM_SLEEP
+		.pm	= &virtio_mmio_pm_ops,
+#endif
 	},
 };
 

2.35.1

From: Stephan Gerhold <[email protected]>

[ Upstream commit e0c2ce8217955537dd5434baeba061f209797119 ]

Virtio devices might lose their state when the VMM is restarted after a suspend to disk (hibernation) cycle. This means that the guest page size register must be restored for the virtio_mmio legacy interface, since otherwise the virtio queues are not functional.

This is particularly problematic for QEMU that currently still defaults to using the legacy interface for virtio_mmio. Write the guest page size register again in virtio_mmio_restore() to make legacy virtio_mmio devices work correctly after hibernation.

Message-Id: <[email protected]>

---
 drivers/virtio/virtio_mmio.c | 3 +++
 1 file changed, 3 insertions(+)

index 79474bd0c52c..17cd682acc22 100644
@@ -521,6 +521,9 @@ static int virtio_mmio_restore(struct device *dev)
 {
 	struct virtio_mmio_device *vm_dev = dev_get_drvdata(dev);
 
+	if (vm_dev->version == 1)
+		writel(PAGE_SIZE, vm_dev->base + VIRTIO_MMIO_GUEST_PAGE_SIZE);
+
 	return virtio_device_restore(&vm_dev->vdev);
 }
 

2.35.1

From: Florian Westphal <[email protected]>

[ Upstream commit c2577862eeb0be94f151f2f1fff662b028061b00 ]

When br_netfilter module is loaded, skbs may be diverted to the ipv4/ipv6 hooks, just like as if we were routing.

Unfortunately, bridge filter hooks with priority 0 may be skipped in this case.

Example:
1. an nftables bridge ruleset is loaded, with a prerouting hook that has priority 0.
2. interface is added to the bridge.
3. no tcp packet is ever seen by the bridge prerouting hook.
4. flush the ruleset
5. load the bridge ruleset again.
6. tcp packets are processed as expected.

After 1) the only registered hook is the bridge prerouting hook, but its not called yet because the bridge hasn't been brought up yet.

After 2), hook order is:
0 br_nf_pre_routing // br_netfilter internal hook 0 chain bridge f prerouting // nftables bridge ruleset

The packet is diverted to br_nf_pre_routing.
If call-iptables is off, the nftables bridge ruleset is called as expected.

But if its enabled, br_nf_hook_thresh() will skip it because it assumes that all 0-priority hooks had been called previously in bridge context.

To avoid this, check for the br_nf_pre_routing hook itself, we need to resume directly after it, even if this hook has a priority of 0.

Unfortunately, this still results in different packet flow. With this fix, the eval order after in 3) is:
1. br_nf_pre_routing
2. ip(6)tables (if enabled)
3. nftables bridge

but after 5 its the much saner:
1. nftables bridge
2. br_nf_pre_routing
3. ip(6)tables (if enabled)

Unfortunately I don't see a solution here:
It would be possible to move br_nf_pre_routing to a higher priority so that it will be called later in the pipeline, but this also impacts ebtables evaluation order, and would still result in this very ordering problem for all nftables-bridge hooks with the same priority as the br_nf_pre_routing one.

Searching back through the git history I don't think this has ever behaved in any other way, hence, no fixes-tag.

---
 net/bridge/br_netfilter_hooks.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

index 4b9d1d6bbf6f..55c7cdf5e7b8 100644
@@ -1001,9 +1001,24 @@ int br_nf_hook_thresh(unsigned int hook, struct net *net,
 		return okfn(net, sk, skb);
 
 	ops = nf_hook_entries_get_hook_ops(e);
-	for (i = 0; i < e->num_hook_entries &&
-	      ops[i]->priority <= NF_BR_PRI_BRNF; i++)
-		;
+	for (i = 0; i < e->num_hook_entries; i++) {
+		/* These hooks have already been called */
+		if (ops[i]->priority < NF_BR_PRI_BRNF)
+			continue;
+
+		/* These hooks have not been called yet, run them. */
+		if (ops[i]->priority > NF_BR_PRI_BRNF)
+			break;
+
+		/* take a closer look at NF_BR_PRI_BRNF. */
+		if (ops[i]->hook == br_nf_pre_routing) {
+			/* This hook diverted the skb to this function,
+			 * hooks after this have not been run yet.
+			 */
+			i++;
+			break;
+		}
+	}
 
 	nf_hook_state_init(&state, hook, NFPROTO_BRIDGE, indev, outdev,
 			   sk, net, okfn);

2.35.1

From: Liang He <[email protected]>

[ Upstream commit ccd7567d4b6cf187fdfa55f003a9e461ee629e36 ]

In pmac_cpufreq_init_MacRISC3(), we need to add corresponding of_node_put() for the three node pointers whose refcount have been incremented by of_find_node_by_name().

---
 drivers/cpufreq/pmac32-cpufreq.c | 4 ++++
 1 file changed, 4 insertions(+)

index e225edb5c359..ce0dda1a4241 100644
@@ -474,6 +474,10 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 	if (slew_done_gpio_np)
 		slew_done_gpio = read_gpio(slew_done_gpio_np);
 
+	of_node_put(volt_gpio_np);
+	of_node_put(freq_gpio_np);
+	of_node_put(slew_done_gpio_np);
+
 	/* If we use the frequency GPIOs, calculate the min/max speeds based
 	 * on the bus frequencies
 	 */

2.35.1

From: Kai-Heng Feng <[email protected]>

[ Upstream commit 9ab762a84b8094540c18a170e5ddd6488632c456 ]

After system resume the hp-wmi driver may complain:

[ 702.620180] hp_wmi: Unknown event_id - 23 - 0x0

According to HP it means 'Sanitization Mode' and it's harmless to just ignore the event.

---
 drivers/platform/x86/hp-wmi.c | 3 +++
 1 file changed, 3 insertions(+)

index 93fadd4abf14..f911410bb4c7 100644
@@ -75,6 +75,7 @@ enum hp_wmi_event_ids {
 	HPWMI_BACKLIT_KB_BRIGHTNESS	= 0x0D,
 	HPWMI_PEAKSHIFT_PERIOD		= 0x0F,
 	HPWMI_BATTERY_CHARGE_PERIOD	= 0x10,
+	HPWMI_SANITIZATION_MODE		= 0x17,
 };
 
 struct bios_args {

@@ -631,6 +632,8 @@ static void hp_wmi_notify(u32 value, void *context)
 		break;
 	case HPWMI_BATTERY_CHARGE_PERIOD:
 		break;
+	case HPWMI_SANITIZATION_MODE:
+		break;
 	default:
 		pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
 		break;

2.35.1

From: Hangyu Hua <[email protected]>

[ Upstream commit 00aff3590fc0a73bddd3b743863c14e76fd35c0c ]

Free sk in case tipc_sk_insert() fails.

---
 net/tipc/socket.c | 1 +
 1 file changed, 1 insertion(+)

index 6c18b4565ab5..8266452c143b 100644
@@ -453,6 +453,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
 	sock_init_data(sock, sk);
 	tipc_set_sk_state(sk, TIPC_OPEN);
 	if (tipc_sk_insert(tsk)) {
+		sk_free(sk);
 		pr_warn("Socket create failed; port number exhausted\n");
 		return -EINVAL;
 	}

2.35.1

From: Michael Walle <[email protected]>

[ Upstream commit 9577fc5fdc8b07b891709af6453545db405e24ad ]

Don't print a misleading header length mismatch error if the i2c call returns an error. Instead just return the error code without any error message.

---
 drivers/nfc/nxp-nci/i2c.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

@@ -138,7 +138,9 @@ static int nxp_nci_i2c_fw_read(struct nx
 	skb_put_data(*skb, &header, NXP_NCI_FW_HDR_LEN);
 
 	r = i2c_master_recv(client, skb_put(*skb, frame_len), frame_len);
-	if (r != frame_len) {
+	if (r < 0) {
+		goto fw_read_exit_free_skb;
+	} else if (r != frame_len) {
 		nfc_err(&client->dev,
 			"Invalid frame length: %u (expected %zu)\n",
 			r, frame_len);

@@ -182,7 +184,9 @@ static int nxp_nci_i2c_nci_read(struct n
 		return 0;
 
 	r = i2c_master_recv(client, skb_put(*skb, header.plen), header.plen);
-	if (r != header.plen) {
+	if (r < 0) {
+		goto nci_read_exit_free_skb;
+	} else if (r != header.plen) {
 		nfc_err(&client->dev,
 			"Invalid frame payload length: %u (expected %u)\n",
 			r, header.plen);

From: Jianglei Nie <[email protected]>

[ Upstream commit 0a18d802d65cf662644fd1d369c86d84a5630652 ]

sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When devm_add_action() fails, sfp is not freed, which leads to a memory leak.

We should use devm_add_action_or_reset() instead of devm_add_action().

---
 drivers/net/phy/sfp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 71bafc8f5ed0..e7af73ad8a44 100644
@@ -1811,7 +1811,7 @@ static int sfp_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, sfp);
 
-	err = devm_add_action(sfp->dev, sfp_cleanup, sfp);
+	err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp);
 	if (err < 0)
 		return err;
 

2.35.1

From: Mark Brown <[email protected]>

[ Upstream commit 5871321fb4558c55bf9567052b618ff0be6b975e ]

We currently report that range controls accept a range of 0..(max-min) but accept writes in the range 0..(max-min+1). Remove that extra +1.

---
 sound/soc/soc-ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index 7a37312c8e0c..453b61b42dd9 100644
@@ -530,7 +530,7 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 		return -EINVAL;
 	if (mc->platform_max && tmp > mc->platform_max)
 		return -EINVAL;
-	if (tmp > mc->max - mc->min + 1)
+	if (tmp > mc->max - mc->min)
 		return -EINVAL;
 
 	if (invert)

@@ -551,7 +551,7 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 			return -EINVAL;
 		if (mc->platform_max && tmp > mc->platform_max)
 			return -EINVAL;
-		if (tmp > mc->max - mc->min + 1)
+		if (tmp > mc->max - mc->min)
 			return -EINVAL;
 
 		if (invert)

2.35.1

From: Charles Keepax <[email protected]>

[ Upstream commit 0bc0ae9a5938d512fd5d44f11c9c04892dcf4961 ]

The DRE controls on wm5110 should return a value of 1 if the DRE state is actually changed, update to fix this.

---
 sound/soc/codecs/wm5110.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

index b0789a03d699..e510aca55163 100644
@@ -414,6 +414,7 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 	unsigned int rnew = (!!ucontrol->value.integer.value[1]) << mc->rshift;
 	unsigned int lold, rold;
 	unsigned int lena, rena;
+	bool change = false;
 	int ret;
 
 	snd_soc_dapm_mutex_lock(dapm);

@@ -441,8 +442,8 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 		goto err;
 	}
 
-	ret = regmap_update_bits(arizona->regmap, ARIZONA_DRE_ENABLE,
-				 mask, lnew | rnew);
+	ret = regmap_update_bits_check(arizona->regmap, ARIZONA_DRE_ENABLE,
+				       mask, lnew | rnew, &change);
 	if (ret) {
 		dev_err(arizona->dev, "Failed to set DRE: %d\n", ret);
 		goto err;

@@ -455,6 +456,9 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 	if (!rnew && rold)
 		wm5110_clear_pga_volume(arizona, mc->rshift);
 
+	if (change)
+		ret = 1;
+
 err:
 	snd_soc_dapm_mutex_unlock(dapm);
 

2.35.1

From: Stafford Horne <[email protected]>

[ Upstream commit 8520501346ed8d1c4a6dfa751cb57328a9c843f1 ]

The mask_ack operation clears the interrupt by writing to the PICSR register. This we don't want for level triggered interrupt because it does not actually clear the interrupt on the source hardware.

This was causing issues in qemu with multi core setups where interrupts would continue to fire even though they had been cleared in PICSR.

Just remove the mask_ack operation.

---
 drivers/irqchip/irq-or1k-pic.c | 1 -
 1 file changed, 1 deletion(-)

index dd9d5d12fea2..05931fdedbb9 100644
@@ -70,7 +70,6 @@ static struct or1k_pic_dev or1k_pic_level = {
 		.name = "or1k-PIC-level",
 		.irq_unmask = or1k_pic_unmask,
 		.irq_mask = or1k_pic_mask,
-		.irq_mask_ack = or1k_pic_mask_ack,
 	},
 	.handle = handle_level_irq,
 	.flags = IRQ_LEVEL | IRQ_NOPROBE,

2.35.1

From: Juergen Gross <[email protected]>

[ Upstream commit 38fa5479b41376dc9d7f57e71c83514285a25ca0 ]

The .brk section has the same properties as .bss: it is an alloc-only section and should be cleared before being used.

Not doing so is especially a problem for Xen PV guests, as the hypervisor will validate page tables (check for writable page tables and hypervisor private bits) before accepting them to be used.

Make sure .brk is initially zero by letting clear_bss() clear the brk area, too.

---
 arch/x86/kernel/head64.c | 2 ++
 1 file changed, 2 insertions(+)

index 88dc38b4a147..90c2613af36b 100644
@@ -383,6 +383,8 @@ static void __init clear_bss(void)
 {
 	memset(__bss_start, 0,
 	       (unsigned long) __bss_stop - (unsigned long) __bss_start);
+	memset(__brk_base, 0,
+	       (unsigned long) __brk_limit - (unsigned long) __brk_base);
 }
 
 static unsigned long get_cmd_line_ptr(void)

2.35.1

From: Gabriel Fernandez <[email protected]>

[ Upstream commit 78ece8cce1ba0c3f3e5a7c6c1b914b3794f04c44 ]

The peripheral clock of CEC is not LSE but CEC.

---
 arch/arm/boot/dts/stm32mp157c.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 4278a4b22860..7c5b2727ba2e 100644
@@ -413,7 +413,7 @@
 			compatible = "st,stm32-cec";
 			reg = <0x40016000 0x400>;
 			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&rcc CEC_K>, <&clk_lse>;
+			clocks = <&rcc CEC_K>, <&rcc CEC>;
 			clock-names = "cec", "hdmi-cec";
 			status = "disabled";
 		};

2.35.1

From: Linus Torvalds <[email protected]>

[ Upstream commit a382f8fee42ca10c9bfce0d2352d4153f931f5dc ]

These are indeed "should not happen" situations, but it turns out recent changes made the 'task_is_stopped_or_trace()' case trigger (fix for that exists, is pending more testing), and the BUG_ON() makes it unnecessarily hard to actually debug for no good reason.

It's been that way for a long time, but let's make it clear: BUG_ON() is not good for debugging, and should never be used in situations where you could just say "this shouldn't happen, but we can continue".

Use WARN_ON_ONCE() instead to make sure it gets logged, and then just continue running. Instead of making the system basically unusuable because you crashed the machine while potentially holding some very core locks (eg this function is commonly called while holding 'tasklist_lock' for writing).

---
 kernel/signal.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

index 4cc3f3ba13a9..c79b87ac1041 100644
@@ -1825,12 +1825,12 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
 	bool autoreap = false;
 	u64 utime, stime;
 
-	BUG_ON(sig == -1);
+	WARN_ON_ONCE(sig == -1);
 
- 	/* do_notify_parent_cldstop should have been called instead.  */
- 	BUG_ON(task_is_stopped_or_traced(tsk));
+	/* do_notify_parent_cldstop should have been called instead.  */
+	WARN_ON_ONCE(task_is_stopped_or_traced(tsk));
 
-	BUG_ON(!tsk->ptrace &&
+	WARN_ON_ONCE(!tsk->ptrace &&
 	       (tsk->group_leader != tsk || !thread_group_empty(tsk)));
 
 	if (sig != SIGCHLD) {

2.35.1

From: Lucien Buchmann <[email protected]>

commit 7c239a071d1f04b7137789810807b4108d475c72 upstream.

Those two product ids are known.

---
 drivers/usb/serial/ftdi_sio.c     |    3 +++
 drivers/usb/serial/ftdi_sio_ids.h |    6 ++++++
 2 files changed, 9 insertions(+)

@@ -1013,6 +1013,9 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_DISPLAY_PID) },
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_LITE_PID) },
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_ANALOG_PID) },
+	/* Belimo Automation devices */
+	{ USB_DEVICE(FTDI_VID, BELIMO_ZTH_PID) },
+	{ USB_DEVICE(FTDI_VID, BELIMO_ZIP_PID) },
 	/* ICP DAS I-756xU devices */
 	{ USB_DEVICE(ICPDAS_VID, ICPDAS_I7560U_PID) },
 	{ USB_DEVICE(ICPDAS_VID, ICPDAS_I7561U_PID) },

@@ -1569,6 +1569,12 @@
 #define CHETCO_SEASMART_ANALOG_PID	0xA5AF /* SeaSmart Analog Adapter */
 
 /*
+ * Belimo Automation
+ */
+#define BELIMO_ZTH_PID			0x8050
+#define BELIMO_ZIP_PID			0xC811
+
+/*
  * Unjo AB
  */
 #define UNJO_VID			0x22B7

From: Linyu Yuan <[email protected]>

commit 6fb9e1d94789e8ee5a258a23bc588693f743fd6c upstream.

System like Android allow user control power role from UI, it is possible to implement application base on typec uevent to refresh UI, but found there is chance that UI show different state from typec attribute file.

In typec_set_pwr_opmode(), when partner support PD, there is no uevent send to user space which cause the problem.

Fix it by sending uevent notification when change power mode to PD.

---
 drivers/usb/typec/class.c |    1 +
 1 file changed, 1 insertion(+)

@@ -1377,6 +1377,7 @@ void typec_set_pwr_opmode(struct typec_p
 			partner->usb_pd = 1;
 			sysfs_notify(&partner_dev->kobj, NULL,
 				     "supports_usb_power_delivery");
+			kobject_uevent(&partner_dev->kobj, KOBJ_CHANGE);
 		}
 		put_device(partner_dev);
 	}

From: Thinh Nguyen <[email protected]>

commit 7441b273388b9a59d8387a03ffbbca9d5af6348c upstream.

The DWC3_EVENT_PENDING flag is used to protect against invalid call to top-half interrupt handler, which can occur when there's a delay in software detection of the interrupt line deassertion.

However, the clearing of this flag was done prior to unmasking the interrupt line, creating opportunity where the top-half handler can come. This breaks the serialization and creates a race between the top-half and bottom-half handler, resulting in losing synchronization between the controller and the driver when processing events.

To fix this, make sure the clearing of the DWC3_EVENT_PENDING is done at the end of the bottom-half handler.

---
 drivers/usb/dwc3/gadget.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

@@ -3187,7 +3187,6 @@ static irqreturn_t dwc3_process_event_bu
 	}
 
 	evt->count = 0;
-	evt->flags &= ~DWC3_EVENT_PENDING;
 	ret = IRQ_HANDLED;
 
 	/* Unmask interrupt */

@@ -3200,6 +3199,9 @@ static irqreturn_t dwc3_process_event_bu
 		dwc3_writel(dwc->regs, DWC3_DEV_IMOD(0), dwc->imod_interval);
 	}
 
+	/* Keep the clearing of DWC3_EVENT_PENDING at the end */
+	evt->flags &= ~DWC3_EVENT_PENDING;
+
 	return ret;
 }
 

From: Chanho Park <[email protected]>

commit f7e35e4bf1e8dc2c8cbd5e0955dc1bd58558dae0 upstream.

The src_maxburst and dst_maxburst have been changed to 1 but the settings of the UCON register aren't changed yet. They should be changed as well according to the dmaengine slave config.

---
 drivers/tty/serial/samsung.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

@@ -238,8 +238,7 @@ static void enable_tx_dma(struct s3c24xx
 	/* Enable tx dma mode */
 	ucon = rd_regl(port, S3C2410_UCON);
 	ucon &= ~(S3C64XX_UCON_TXBURST_MASK | S3C64XX_UCON_TXMODE_MASK);
-	ucon |= (dma_get_cache_alignment() >= 16) ?
-		S3C64XX_UCON_TXBURST_16 : S3C64XX_UCON_TXBURST_1;
+	ucon |= S3C64XX_UCON_TXBURST_1;
 	ucon |= S3C64XX_UCON_TXMODE_DMA;
 	wr_regl(port,  S3C2410_UCON, ucon);
 

@@ -512,7 +511,7 @@ static void enable_rx_dma(struct s3c24xx
 			S3C64XX_UCON_DMASUS_EN |
 			S3C64XX_UCON_TIMEOUT_EN |
 			S3C64XX_UCON_RXMODE_MASK);
-	ucon |= S3C64XX_UCON_RXBURST_16 |
+	ucon |= S3C64XX_UCON_RXBURST_1 |
 			0xf << S3C64XX_UCON_TIMEOUT_SHIFT |
 			S3C64XX_UCON_EMPTYINT_EN |
 			S3C64XX_UCON_TIMEOUT_EN |

From: Yi Yang <[email protected]>

commit 6e690d54cfa802f939cefbd2fa2c91bd0b8bd1b6 upstream.

If port->mapbase = NULL in serial8250_request_std_resource() , it need return a error code instead of 0. If uart_set_info() fail to request new regions by serial8250_request_std_resource() but the return value of serial8250_request_std_resource() is 0, The system incorrectly considers that the resource application is successful and does not attempt to restore the old setting. A null pointer reference is triggered when the port resource is later invoked.

---
 drivers/tty/serial/8250/8250_port.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

@@ -2917,8 +2917,10 @@ static int serial8250_request_std_resour
 	case UPIO_MEM32BE:
 	case UPIO_MEM16:
 	case UPIO_MEM:
-		if (!port->mapbase)
+		if (!port->mapbase) {
+			ret = -EINVAL;
 			break;
+		}
 
 		if (!request_mem_region(port->mapbase, size, "serial")) {
 			ret = -EBUSY;

From: Ilpo Järvinen <[email protected]>

commit 5c5f44e36217de5ead789ff25da71c31c2331c96 upstream.

The code lacks clearing of previous DEAT/DEDT values. Thus, changing values on the fly results in garbage delays tending towards the maximum value as more and more bits are ORed together. (Leaving RS485 mode would have cleared the old values though).

---
 drivers/tty/serial/stm32-usart.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -72,6 +72,8 @@ static void stm32_config_reg_rs485(u32 *
 	*cr3 |= USART_CR3_DEM;
 	over8 = *cr1 & USART_CR1_OVER8;
 
+	*cr1 &= ~(USART_CR1_DEDT_MASK | USART_CR1_DEAT_MASK);
+
 	if (over8)
 		rs485_deat_dedt = delay_ADE * baud * 8;
 	else

From: Ilpo Järvinen <[email protected]>

commit 211565b100993c90b53bf40851eacaefc830cfe0 upstream.

The driver must provide throttle and unthrottle in uart_ops when it sets UPSTAT_AUTORTS. Add them using existing stop_rx & enable_interrupts functions.

---
 drivers/tty/serial/amba-pl011.c |   23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

@@ -1335,6 +1335,15 @@ static void pl011_stop_rx(struct uart_po
 	pl011_dma_rx_stop(uap);
 }
 
+static void pl011_throttle_rx(struct uart_port *port)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+	pl011_stop_rx(port);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
 static void pl011_enable_ms(struct uart_port *port)
 {
 	struct uart_amba_port *uap =

@@ -1728,9 +1737,10 @@ static int pl011_allocate_irq(struct uar
  */
 static void pl011_enable_interrupts(struct uart_amba_port *uap)
 {
+	unsigned long flags;
 	unsigned int i;
 
-	spin_lock_irq(&uap->port.lock);
+	spin_lock_irqsave(&uap->port.lock, flags);
 
 	/* Clear out any spuriously appearing RX interrupts */
 	pl011_write(UART011_RTIS | UART011_RXIS, uap, REG_ICR);

@@ -1752,7 +1762,14 @@ static void pl011_enable_interrupts(stru
 	if (!pl011_dma_rx_running(uap))
 		uap->im |= UART011_RXIM;
 	pl011_write(uap->im, uap, REG_IMSC);
-	spin_unlock_irq(&uap->port.lock);
+	spin_unlock_irqrestore(&uap->port.lock, flags);
+}
+
+static void pl011_unthrottle_rx(struct uart_port *port)
+{
+	struct uart_amba_port *uap = container_of(port, struct uart_amba_port, port);
+
+	pl011_enable_interrupts(uap);
 }
 
 static int pl011_startup(struct uart_port *port)

@@ -2127,6 +2144,8 @@ static const struct uart_ops amba_pl011_
 	.stop_tx	= pl011_stop_tx,
 	.start_tx	= pl011_start_tx,
 	.stop_rx	= pl011_stop_rx,
+	.throttle	= pl011_throttle_rx,
+	.unthrottle	= pl011_unthrottle_rx,
 	.enable_ms	= pl011_enable_ms,
 	.break_ctl	= pl011_break_ctl,
 	.startup	= pl011_startup,

From: Marc Kleine-Budde <[email protected]>

commit 2e8e79c416aae1de224c0f1860f2e3350fa171f8 upstream.

can_put_echo_skb() will clone skb then free the skb. Move the can_put_echo_skb() for the m_can version 3.0.x directly before the start of the xmit in hardware, similar to the 3.1.x branch.

---
 drivers/net/can/m_can/m_can.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

@@ -1438,8 +1438,6 @@ static netdev_tx_t m_can_start_xmit(stru
 					 M_CAN_FIFO_DATA(i / 4),
 					 *(u32 *)(cf->data + i));
 
-		can_put_echo_skb(skb, dev, 0);
-
 		if (priv->can.ctrlmode & CAN_CTRLMODE_FD) {
 			cccr = m_can_read(priv, M_CAN_CCCR);
 			cccr &= ~(CCCR_CMR_MASK << CCCR_CMR_SHIFT);

@@ -1456,6 +1454,9 @@ static netdev_tx_t m_can_start_xmit(stru
 			m_can_write(priv, M_CAN_CCCR, cccr);
 		}
 		m_can_write(priv, M_CAN_TXBTIE, 0x1);
+
+		can_put_echo_skb(skb, dev, 0);
+
 		m_can_write(priv, M_CAN_TXBAR, 0x1);
 		/* End of xmit function for version 3.0.x */
 	} else {

Tested on arm64 and x86 for 4.19.253-rc1,

Kernel repo:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
Branch: linux-4.19.y
Version: 4.19.253-rc1
Commit: 7e891ca4fbed75e8d86f1221c9b3f8151a0e847c
Compiler: gcc version 7.3.0 (GCC)

arm64:
--------------------------------------------------------------------
Testcase Result Summary:
total: 8946
passed: 8946
failed: 0
timeout: 0
--------------------------------------------------------------------

x86:
--------------------------------------------------------------------
Testcase Result Summary:
total: 8946
passed: 8946
failed: 0
timeout: 0
--------------------------------------------------------------------

Build results:

	total: 157 pass: 157 fail: 0
Qemu test results:
	total: 425 pass: 425 fail: 0

Guenter

All tests passing for Tegra ...

Test results for stable-v4.19:

    10 builds:	10 pass, 0 fail
    22 boots:	22 pass, 0 fail
    40 tests:	40 pass, 0 fail

Linux version: 4.19.253-rc1-g8b84863f2dd5
Boards tested: tegra124-jetson-tk1, tegra186-p2771-0000,

                tegra194-p2972-0000, tegra20-ventana,
                tegra210-p2371-2180, tegra30-cardhu-a04

Jon

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

## Build
* kernel: 4.19.253-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-4.19.y
* git commit: 8b84863f2dd59d1663d4c8a38cf7a59fdef04dfc
* git describe: v4.19.252-49-g8b84863f2dd5
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-4.19.y/build/v4.19.252-49-g8b84863f2dd5

## Test Regressions (compared to v4.19.252)
No test regressions found.

## Metric Regressions (compared to v4.19.252)
No metric regressions found.

## Test Fixes (compared to v4.19.252)
No test fixes found.

## Metric Fixes (compared to v4.19.252)
No metric fixes found.

## Test result summary
total: 113490, pass: 100359, fail: 274, skip: 11697, xfail: 1160

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 291 total, 286 passed, 5 failed
* arm64: 58 total, 57 passed, 1 failed
* i386: 26 total, 25 passed, 1 failed
* mips: 35 total, 35 passed, 0 failed
* parisc: 12 total, 12 passed, 0 failed
* powerpc: 54 total, 54 passed, 0 failed
* s390: 12 total, 12 passed, 0 failed
* sh: 24 total, 24 passed, 0 failed
* sparc: 12 total, 12 passed, 0 failed
* x86_64: 52 total, 51 passed, 1 failed

## Test suites summary
* fwts
* igt-gpu-tools
* kunit
* kvm-unit-tests
* libhugetlbfs
* log-parser-boot
* log-parser-test
* ltp-cap_bounds
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-cpuhotplug
* ltp-crypto
* ltp-cve
* ltp-dio
* ltp-fcntl-locktests
* ltp-filecaps
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-fsx
* ltp-hugetlb
* ltp-io
* ltp-ipc
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-open-posix-tests
* ltp-pty
* ltp-sched
* ltp-securebits
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* network-basic-tests
* packetdrill
* rcutorture
* ssuite
* v4l2-compliance
* vdso

--
Linaro LKFT
https://lkft.linaro.org

Hi Greg,

Build test (gcc version 11.3.1 20220706):
mips: 63 configs -> no failure
arm: 115 configs -> no failure
arm64: 2 configs -> no failure
x86_64: 4 configs -> no failure
alpha allmodconfig -> no failure
powerpc allmodconfig -> no failure
riscv allmodconfig -> no failure
s390 allmodconfig -> no failure
xtensa allmodconfig -> no failure

Boot test:
x86_64: Booted on my test laptop. No regression.
x86_64: Booted on qemu. No regression. [1]

[1]. https://openqa.qa.codethink.co.uk/tests/1519

--
Regards
Sudip