From: Thomas Gleixner <tglx@linutronix.de>
To: syzbot <syzbot+b506de56cbbb63148c33@syzkaller.appspotmail.com>,
andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org,
daniel@iogearbox.net, eddyz87@gmail.com, frederic@kernel.org,
haoluo@google.com, houtao@huaweicloud.com,
john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org,
linux-kernel@vger.kernel.org, martin.lau@linux.dev,
peterz@infradead.org, sdf@fomichev.me, song@kernel.org,
syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev
Subject: Re: [syzbot] [bpf?] WARNING: locking bug in trie_delete_elem
Date: Tue, 12 Nov 2024 03:24:44 +0100 [thread overview]
Message-ID: <87bjylnq8j.ffs@tglx> (raw)
In-Reply-To: <672d2a52.050a0220.15a23d.01a1.GAE@google.com>
On Thu, Nov 07 2024 at 13:00, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit 4febce44cfebcb490b196d5d10ae9f403ca4c956
> Author: Thomas Gleixner <tglx@linutronix.de>
> Date: Tue Oct 1 08:42:03 2024 +0000
>
> posix-timers: Cure si_sys_private race
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129f2d87980000
> start commit: f9f24ca362a4 Add linux-next specific files for 20241031
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=169f2d87980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=328572ed4d152be9
> dashboard link: https://syzkaller.appspot.com/bug?extid=b506de56cbbb63148c33
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1387655f980000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ac5540580000
>
> Reported-by: syzbot+b506de56cbbb63148c33@syzkaller.appspotmail.com
> Fixes: 4febce44cfeb ("posix-timers: Cure si_sys_private race")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
I seriously doubt that this bisection is even remotely correct.
This commit has absolutely nothing to do with the lockdep splat and
trie_delete_elem().
Thanks,
tglx
next prev parent reply other threads:[~2024-11-12 2:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-31 19:32 [syzbot] [bpf?] WARNING: locking bug in trie_delete_elem syzbot
2024-11-01 9:44 ` [RESEND] " Hou Tao
2024-11-07 21:00 ` syzbot
2024-11-12 2:24 ` Thomas Gleixner [this message]
2024-11-13 11:04 ` Aleksandr Nogikh
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