linux-kernel - Re: [syzbot] [media?] possible deadlock in v4l2_ctrl_handler_log

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Date: Fri, 09 Feb 2024 05:58:02 -0800
From: syzbot <syzbot+9948f8e188482c5d1a3e@...kaller.appspotmail.com>
To: benjamin.gaignard@...labora.com, daniel.almeida@...labora.com, 
	hdanton@...a.com, hverkuil-cisco@...all.nl, linux-kernel@...r.kernel.org, 
	linux-media@...r.kernel.org, mchehab@...nel.org, 
	nicolas.dufresne@...labora.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [media?] possible deadlock in v4l2_ctrl_handler_log_status

syzbot has bisected this issue to:

commit 9801b5b28c6929139d6fceeee8d739cc67bb2739
Author: Hans Verkuil <hverkuil-cisco@...all.nl>
Date:   Wed Jan 17 14:52:04 2024 +0000

    media: v4l2-ctrls: show all owned controls in log_status

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1278acec180000
start commit:   b1d3a0e70c38 Add linux-next specific files for 20240208
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1178acec180000
console output: https://syzkaller.appspot.com/x/log.txt?x=1678acec180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bb693ba195662a06
dashboard link: https://syzkaller.appspot.com/bug?extid=9948f8e188482c5d1a3e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=148953c4180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1746f9b7e80000

Reported-by: syzbot+9948f8e188482c5d1a3e@...kaller.appspotmail.com
Fixes: 9801b5b28c69 ("media: v4l2-ctrls: show all owned controls in log_status")

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