Re: [syzbot] [bcachefs?] general protection fault in proc_sys_compare

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On 2025/03/07 11:45, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    b91872c56940 Merge tag 'dmaengine-fix-6.14' of git://git.k..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1485e8b7980000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=8de9cc84d5960254
> dashboard link: https://syzkaller.appspot.com/bug?extid=4364ec1693041cad20de
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=149d55a8580000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/4b855669df70/disk-b91872c5.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/e44f3c546271/vmlinux-b91872c5.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/b106e670346a/bzImage-b91872c5.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/68b26fa478ee/mount_0.gz
> 
> The issue was bisected to:
> 
> commit 579cd64b9df8a60284ec3422be919c362de40e41
> Author: Hector Martin <marcan@xxxxxxxxx>
> Date:   Sat Feb 8 00:54:35 2025 +0000
> 
>     ASoC: tas2770: Fix volume scale
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14aa03a8580000
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=16aa03a8580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=12aa03a8580000
[...]

This is a bad bisect. Not sure what the appropriate syzbot action is in
this case.

- Hector





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