linux-kernel - Re: [syzbot] [cgroups?] possible deadlock in static_key_slow

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Message-ID: <000000000000d1565005fda9cef1@google.com>
Date:   Thu, 08 Jun 2023 20:17:24 -0700
From:   syzbot <syzbot+2ab700fe1829880a2ec6@...kaller.appspotmail.com>
To:     cgroups@...r.kernel.org, hannes@...xchg.org,
        hverkuil-cisco@...all.nl, hverkuil@...all.nl,
        linux-kernel@...r.kernel.org, lizefan.x@...edance.com,
        mchehab@...nel.org, syzkaller-bugs@...glegroups.com, tj@...nel.org
Subject: Re: [syzbot] [cgroups?] possible deadlock in static_key_slow_inc (3)

syzbot has bisected this issue to:

commit eb1d969203eb8212741751f88dcf5cb56bb11830
Author: Hans Verkuil <hverkuil@...all.nl>
Date:   Fri Oct 21 12:21:25 2022 +0000

    media: vivid: fix control handler mutex deadlock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16af9d95280000
start commit:   5f63595ebd82 Merge tag 'input-for-v6.4-rc5' of git://git.k..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=15af9d95280000
console output: https://syzkaller.appspot.com/x/log.txt?x=11af9d95280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3c980bfe8b399968
dashboard link: https://syzkaller.appspot.com/bug?extid=2ab700fe1829880a2ec6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142e0463280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10a32add280000

Reported-by: syzbot+2ab700fe1829880a2ec6@...kaller.appspotmail.com
Fixes: eb1d969203eb ("media: vivid: fix control handler mutex deadlock")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection