linux-kernel - Re: [syzbot] WARNING in cgroup_finalize

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Date:   Sat, 20 Nov 2021 18:24:06 -0800
From:   syzbot <syzbot+9c08aaa363ca5784c9e9@...kaller.appspotmail.com>
To:     andriin@...com, ast@...nel.org, bpf@...r.kernel.org,
        cgroups@...r.kernel.org, christian@...uner.io,
        coreteam@...filter.org, daniel@...earbox.net, davem@...emloft.net,
        hannes@...xchg.org, john.fastabend@...il.com, kaber@...sh.net,
        kadlec@...ckhole.kfki.hu, kafai@...com, kpsingh@...omium.org,
        linux-kernel@...r.kernel.org, linux-sctp@...r.kernel.org,
        lizefan.x@...edance.com, lizefan@...wei.com, longman@...hat.com,
        marcelo.leitner@...il.com, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, nhorman@...driver.com,
        pablo@...filter.org, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, tj@...nel.org,
        vyasevich@...il.com, yhs@...com
Subject: Re: [syzbot] WARNING in cgroup_finalize_control

syzbot suspects this issue was fixed by commit:

commit 7ee285395b211cad474b2b989db52666e0430daf
Author: Waiman Long <longman@...hat.com>
Date:   Sat Sep 18 22:53:08 2021 +0000

    cgroup: Make rebind_subsystems() disable v2 controllers all at once

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12232c06b00000
start commit:   442489c21923 Merge tag 'timers-core-2020-08-04' of git://g..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=b3f0df8558780a7d
dashboard link: https://syzkaller.appspot.com/bug?extid=9c08aaa363ca5784c9e9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14148c62900000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: cgroup: Make rebind_subsystems() disable v2 controllers all at once

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