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From: syzbot <syzbot+b5ddc2aecb8d1b29c871@syzkaller.appspotmail.com>
To: davem@davemloft.net, edumazet@google.com, hdanton@sina.com,
	 horms@kernel.org, kuba@kernel.org, kuniyu@google.com,
	leitao@debian.org,  linux-kernel@vger.kernel.org,
	luto@kernel.org, mikhail.v.gavrilov@gmail.com,
	 ncardwell@google.com, netdev@vger.kernel.org, pabeni@redhat.com,
	 peterz@infradead.org, syzkaller-bugs@googlegroups.com,
	tglx@kernel.org
Subject: Re: [syzbot] [net?] WARNING: locking bug in finish_task_switch (3)
Date: Sun, 20 Sep 2026 09:26:04 -0700	[thread overview]
Message-ID: <6ab0091c.3179f8cd.1e36b2.0016.GAE@google.com> (raw)
In-Reply-To: <6aa3307a.6e6c5f9e.28f11f.003a.GAE@google.com>

syzbot has bisected this issue to:

commit 8fa30821180a9a19e78e9f4df1c0ba710252801e
Author: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Date:   Tue Jun 16 07:09:14 2026 +0000

    timekeeping: Register default clocksource before taking tk_core.lock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10d09525580000
start commit:   50d05c7c76c9 Merge tag 'landlock-7.3-rc3' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=12d09525580000
console output: https://syzkaller.appspot.com/x/log.txt?x=14d09525580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5e4e3a0e188a497e
dashboard link: https://syzkaller.appspot.com/bug?extid=b5ddc2aecb8d1b29c871
userspace arch: i386
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12ab4525580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14d4e915580000

Reported-by: syzbot+b5ddc2aecb8d1b29c871@syzkaller.appspotmail.com
Fixes: 8fa30821180a ("timekeeping: Register default clocksource before taking tk_core.lock")

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

      parent reply	other threads:[~2026-09-20 16:26 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <6aa3307a.6e6c5f9e.28f11f.003a.GAE@google.com>
2026-09-18 21:24 ` [syzbot] [net?] WARNING: locking bug in finish_task_switch (3) syzbot
2026-09-20 16:26 ` syzbot [this message]

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