linux-kernel - Re: [syzbot] [kernel?] WARNING: locking bug in try_to_wake

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Message-ID: <693f2915.a70a0220.104cf0.032e.GAE@google.com>
Date: Sun, 14 Dec 2025 13:16:05 -0800
From: syzbot <syzbot+9656cc66de78ef06f223@...kaller.appspotmail.com>
To: andrealmeid@...lia.com, bigeasy@...utronix.de, dave@...olabs.net, 
	dvhart@...radead.org, linux-kernel@...r.kernel.org, mingo@...hat.com, 
	peterz@...radead.org, syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: [syzbot] [kernel?] WARNING: locking bug in try_to_wake_up (3)

syzbot suspects this issue was fixed by commit:

commit b549113738e8c751b613118032a724b772aa83f2
Author: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Date:   Wed Sep 10 10:42:43 2025 +0000

    futex: Prevent use-after-free during requeue-PI

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1375511a580000
start commit:   fb679c832b64 Merge tag 'efi-fixes-for-v6.17-1' of git://gi..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=bd9738e00c1bbfb4
dashboard link: https://syzkaller.appspot.com/bug?extid=9656cc66de78ef06f223
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=166bea62580000

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

#syz fix: futex: Prevent use-after-free during requeue-PI

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