linux-kernel - Re: [PATCH 6.1 00/86] 6.1.104-rc2 review

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <58b977a4-5328-47d1-927b-625de75ebe0f@roeck-us.net>
Date: Mon, 12 Aug 2024 19:44:39 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org
Cc: patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
 torvalds@...ux-foundation.org, akpm@...ux-foundation.org, shuah@...nel.org,
 patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
 jonathanh@...dia.com, f.fainelli@...il.com, sudipm.mukherjee@...il.com,
 srw@...dewatkins.net, rwarsow@....de, conor@...nel.org,
 allen.lkml@...il.com, broonie@...nel.org
Subject: Re: [PATCH 6.1 00/86] 6.1.104-rc2 review

On 8/12/24 14:49, Guenter Roeck wrote:
> Hi,
> 
> On 8/8/24 02:11, Greg Kroah-Hartman wrote:
>> This is the start of the stable review cycle for the 6.1.104 release.
>> There are 86 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 Sat, 10 Aug 2024 09:11:02 +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-6.1.104-rc2.gz
>> or in the git tree and branch at:
>>     git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y
>> and the diffstat can be found below.
>>
> ...
>> Naohiro Aota <naohiro.aota@....com>
>>      btrfs: zoned: fix zone_unusable accounting on making block group read-write again
>>
> 
> This patch results in a variety of problems with the parisc64 qemu emulation.
> Some examples from various test runs:
> 
> [   10.527204] alg: akcipher: test 1 failed for rsa-generic, err=-22
> [   10.529743] alg: self-tests for rsa using rsa-generic failed (rc=-22)
> [   10.529905] ------------[ cut here ]------------
> [   10.530276] alg: self-tests for rsa using rsa-generic failed (rc=-22)
> [   10.530732] WARNING: CPU: 0 PID: 50 at crypto/testmgr.c:5907 alg_test+0x618/0x688
> 
> [    7.420056] ==================================================================
> [    7.420507] BUG: KFENCE: invalid read in walk_stackframe.isra.0+0xb4/0x138
> [    7.420507]
> [    7.420827] Invalid read at 0x0000000042f07000:
> [    7.421037]  walk_stackframe.isra.0+0xb4/0x138
> [    7.421204]  arch_stack_walk+0x38/0x50
> [    7.421338]  stack_trace_save_regs+0x58/0x70
> [    7.421498]  kfence_report_error+0x14c/0x730
> [    7.421649]  kfence_handle_page_fault+0x2c8/0x2d0
> [    7.421996]  handle_interruption+0x9b0/0xb58
> [    7.422168]  intr_check_sig+0x0/0x3c
> 
> [    8.891194] =============================================================================
> [    8.891558] BUG sgpool-32 (Tainted: G    B   W        N): Wrong object count. Counter is 3 but counted were 18
> 
> [    0.403174] =============================================================================
> [    0.403568] BUG audit_buffer (Not tainted): Wrong object count. Counter is 1 but counted were 34
> 
> [    0.505914] =============================================================================
> [    0.506258] BUG skbuff_head_cache (Tainted: G    B             ): Freechain corrupt
> 
> [    2.831636] =============================================================================
> [    2.832144] BUG skbuff_head_cache (Tainted: G    B             ): Left Redzone overwritten
> 
> Reverting it fixes the problem.
> 
> Bisect log is attached for reference.
> 
> 
> I tried to repeat the test with v6.1.105-rc1, but that fails to compile for parisc64.
> 
> /home/groeck/src/linux-stable/include/linux/slab.h:228: warning: "ARCH_KMALLOC_MINALIGN" redefined
>    228 | #define ARCH_KMALLOC_MINALIGN ARCH_DMA_MINALIGN
> 
> This is due to commit 96423e23e05b ("parisc: fix a possible DMA corruption").
> After reverting that patch I don't see the above problems anymore in v6.1.105-rc1,
> so it looks like the btrfs patches in v6.1.105-rc1 may have fixed it (or maybe
> there is another hidden bug in the parisc64 qemu emulation).
> 

Oh, never mind. I did a reverse bisect on v6.1.105-rc1 (after fixing the build failure there),
and it points to an unrelated commit. Looks like another qemu emulation bug. Sorry for the noise.

Guenter