Re: [PATCH 4.19 00/95] 4.19.209-rc1 review

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On Mon, Oct 4, 2021 at 10:40 AM Naresh Kamboju
<naresh.kamboju@xxxxxxxxxx> wrote:
>
> On Mon, 4 Oct 2021 at 18:32, Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > This is the start of the stable review cycle for the 4.19.209 release.
> > There are 95 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 Wed, 06 Oct 2021 12:50:17 +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-4.19.209-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
>
> Regression found on arm, arm64, i386 and x86.
> following kernel crash reported on stable-rc linux-4.19.y.
>

Stable teams should backport cred: allow get_cred() and put_cred() to
be given NULL.

f06bc03339ad4c1baa964a5f0606247ac1c3c50b

Or they should have tweaked my patch before backporting it.

> metadata:
>   git branch: linux-4.19.y
>   git repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
>   git commit: ee3e528d83e91547f386a30677ccb96c28e78218
>   git describe: v4.19.208-96-gee3e528d83e9
>   make_kernelversion: 4.19.209-rc1
>   kernel-config: https://builds.tuxbuild.com/1z2izwX1xMgF2OSYM5EN6ELHEij/config
>
>
> Kernel crash:
> --------------
> [   14.900875] BUG: unable to handle kernel NULL pointer dereference
> at 0000000000000000
> [   14.908699] PGD 0 P4D 0
> [   14.911230] Oops: 0002 [#1] SMP PTI
> [   14.914714] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.209-rc1 #1
> [   14.921147] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
> 2.2 05/23/2018
> [   14.928531] RIP: 0010:__sk_destruct+0xb9/0x190
> [   14.932965] Code: 48 8b 47 08 48 8d 50 ff a8 01 48 0f 45 fa f0 ff
> 4f 34 0f 84 d9 00 00 00 48 c7 83 00 ff ff ff 00 00 00 00 48 8b bb 78
> ff ff ff <f0> ff 0f 0f 84 a0 00 00 00 48 8b bb 70 ff ff ff e8 32 41 6d
> ff f6
> [   14.951704] RSP: 0000:ffff9e242f803dc0 EFLAGS: 00010246
> [   14.956920] RAX: 0000000000000000 RBX: ffff9e242cfc82c0 RCX: 0000000000000001
> [   14.964043] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> [   14.971167] RBP: ffff9e242f803de0 R08: ffff9e242cfc8000 R09: 0000000000000000
> [   14.978291] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9e242cfc8000
> [   14.985415] R13: ffff9e242cfc82c0 R14: ffff9e242cde8600 R15: 00000000ffffff0c
> [   14.992540] FS:  0000000000000000(0000) GS:ffff9e242f800000(0000)
> knlGS:0000000000000000
> [   15.000617] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   15.006359] CR2: 0000000000000000 CR3: 0000000013c0a001 CR4: 00000000003606f0
> [   15.013504] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [   15.020628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [   15.027752] Call Trace:
> [   15.030198]  <IRQ>
> [   15.032207]  __sk_free+0x71/0x110
> [   15.035518]  __sock_wfree+0x2c/0x30
> [   15.039002]  skb_release_head_state+0x56/0xa0
> [   15.043359]  napi_consume_skb+0x5a/0x140
> [   15.047297]  igb_poll+0xc7/0xf30
> [   15.050522]  net_rx_action+0x13a/0x3a0
> [   15.054273]  ? __napi_schedule+0x54/0x70
> [   15.058189]  __do_softirq+0xf6/0x2ed
> [   15.061760]  irq_exit+0xab/0xe0
> [   15.064897]  do_IRQ+0x86/0xe0
> [   15.067862]  common_interrupt+0xf/0xf
> [   15.071519]  </IRQ>
> [   15.073618] RIP: 0010:cpuidle_enter_state+0x119/0x2c0
> [   15.078669] Code: 77 ff 80 7d c7 00 74 12 9c 58 f6 c4 02 0f 85 8e
> 01 00 00 31 ff e8 07 1d 7d ff e8 b2 84 82 ff fb 48 ba cf f7 53 e3 a5
> 9b c4 20 <4c> 2b 7d c8 4c 89 f8 49 c1 ff 3f 48 f7 ea b8 ff ff ff 7f 48
> c1 fa
> [   15.097405] RSP: 0000:ffffffff9ce03e00 EFLAGS: 00000282 ORIG_RAX:
> ffffffffffffffdc
> [   15.104961] RAX: ffffffff9ce03e40 RBX: ffff9e242d6ce000 RCX: 000000000000001f
> [   15.112085] RDX: 20c49ba5e353f7cf RSI: ffffffff9c028777 RDI: ffffffff9c02858e
> [   15.119210] RBP: ffffffff9ce03e40 R08: 0000000378293f7f R09: 0000000000000022
> [   15.126358] R10: 0000000000000034 R11: ffff9e242f81ed08 R12: 0000000000000001
> [   15.133510] R13: ffffffff9ceca620 R14: ffffffff9ceca680 R15: 0000000378293f7f
> [   15.140636]  ? cpuidle_enter+0x17/0x20
> [   15.144415]  ? cpuidle_enter_state+0x10e/0x2c0
> [   15.148859]  cpuidle_enter+0x17/0x20
> [   15.152430]  call_cpuidle+0x23/0x40
> [   15.155914]  do_idle+0x1b9/0x240
> [   15.159138]  cpu_startup_entry+0x73/0x80
> [   15.163055]  rest_init+0xa3/0xa5
> [   15.166280]  start_kernel+0x483/0x4a5
> [   15.169937]  x86_64_start_reservations+0x24/0x26
> [   15.174547]  x86_64_start_kernel+0x70/0x74
> [   15.178637]  secondary_startup_64+0xa4/0xb0
> [   15.182813] Modules linked in:
> [   15.185866] CR2: 0000000000000000
> [   15.189177] ---[ end trace 87e25bcdd88d2b4b ]---
> [   15.193785] RIP: 0010:__sk_destruct+0xb9/0x190
> [   15.198222] Code: 48 8b 47 08 48 8d 50 ff a8 01 48 0f 45 fa f0 ff
> 4f 34 0f 84 d9 00 00 00 48 c7 83 00 ff ff ff 00 00 00 00 48 8b bb 78
> ff ff ff <f0> ff 0f 0f 84 a0 00 00 00 48 8b bb 70 ff ff ff e8 32 41 6d
> ff f6
> [   15.216960] RSP: 0000:ffff9e242f803dc0 EFLAGS: 00010246
> [   15.222176] RAX: 0000000000000000 RBX: ffff9e242cfc82c0 RCX: 0000000000000001
> [   15.229302] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> [   15.236424] RBP: ffff9e242f803de0 R08: ffff9e242cfc8000 R09: 0000000000000000
> [   15.243548] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9e242cfc8000
> [   15.250673] R13: ffff9e242cfc82c0 R14: ffff9e242cde8600 R15: 00000000ffffff0c
> [   15.257796] FS:  0000000000000000(0000) GS:ffff9e242f800000(0000)
> knlGS:0000000000000000
> [   15.265872] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   15.271613] CR2: 0000000000000000 CR3: 0000000013c0a001 CR4: 00000000003606f0
> [   15.278734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [   15.285858] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [   15.292982] Kernel panic - not syncing: Fatal exception in interrupt
> [   15.299375] Kernel Offset: 0x1a600000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
>
> ref:
> https://lkft.validation.linaro.org/scheduler/job/3657592#L928
> https://lkft.validation.linaro.org/scheduler/job/3657638#L933
> https://lkft.validation.linaro.org/scheduler/job/3657762#L949
> https://lkft.validation.linaro.org/scheduler/job/3657822#L1899
>
> --
> Linaro LKFT
> https://lkft.linaro.org



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