linux-kernel - Re: [syzbot] [perf?] general protection fault in inherit_task

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Message-ID: <CANp29Y4NLk4jd8zhN-VjXWtrDSWbS=Y-ADGxrmboKU+KH2hMPw@mail.gmail.com>
Date:   Wed, 29 Nov 2023 13:21:35 +0100
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     syzbot <syzbot+756fe9affda890e892ae@...kaller.appspotmail.com>
Cc:     acme@...nel.org, adrian.hunter@...el.com,
        alexander.shishkin@...ux.intel.com, bpf@...r.kernel.org,
        irogers@...gle.com, jolsa@...nel.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, mark.rutland@....com,
        mingo@...nel.org, mingo@...hat.com, namhyung@...nel.org,
        netdev@...r.kernel.org, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [perf?] general protection fault in inherit_task_group

On Wed, Nov 29, 2023 at 1:17 PM syzbot
<syzbot+756fe9affda890e892ae@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit a71ef31485bb51b846e8db8b3a35e432cc15afb5
> Author: Peter Zijlstra <peterz@...radead.org>
> Date:   Tue Oct 24 09:42:21 2023 +0000
>
>     perf/core: Fix potential NULL deref
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17172162e80000
> start commit:   6808918343a8 net: bridge: fill in MODULE_DESCRIPTION()
> git tree:       bpf-next
> kernel config:  https://syzkaller.appspot.com/x/.config?x=429fa76d04cf393c
> dashboard link: https://syzkaller.appspot.com/bug?extid=756fe9affda890e892ae
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12db572b680000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10839a1b680000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: perf/core: Fix potential NULL deref

#syz fix: perf/core: Fix potential NULL deref

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