linux-kernel - Re: [syzbot] [cgroups?] possible deadlock in console_lock_spinning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <678a4e3b.050a0220.303755.0005.GAE@google.com>
Date: Fri, 17 Jan 2025 04:34:03 -0800
From: syzbot <syzbot+622acb507894a48b2ce9@...kaller.appspotmail.com>
To: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org, 
	cgroups@...r.kernel.org, daniel@...earbox.net, davem@...emloft.net, 
	elic@...dia.com, gregkh@...uxfoundation.org, hannes@...xchg.org, 
	hawk@...nel.org, jasowang@...hat.com, jirislaby@...nel.org, 
	john.fastabend@...il.com, kafai@...com, kpsingh@...nel.org, kuba@...nel.org, 
	len.brown@...el.com, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, 
	linux-serial@...r.kernel.org, mingo@...hat.com, mkoutny@...e.com, 
	mst@...hat.com, netdev@...r.kernel.org, parav@...dia.com, pavel@....cz, 
	rafael@...nel.org, rostedt@...dmis.org, songliubraving@...com, 
	syzkaller-bugs@...glegroups.com, tj@...nel.org, yhs@...com
Subject: Re: [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable
 (5)

syzbot has bisected this issue to:

commit bc0d90ee021f1baecd6aaa010d787eb373aa74dd
Author: Parav Pandit <parav@...dia.com>
Date:   Tue Jan 5 10:32:02 2021 +0000

    vdpa: Enable user to query vdpa device info

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1440c2b0580000
start commit:   619f0b6fad52 Merge tag 'seccomp-v6.13-rc8' of git://git.ke..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1640c2b0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1240c2b0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d1cb4a1f148c0861
dashboard link: https://syzkaller.appspot.com/bug?extid=622acb507894a48b2ce9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=175029df980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16f29a18580000

Reported-by: syzbot+622acb507894a48b2ce9@...kaller.appspotmail.com
Fixes: bc0d90ee021f ("vdpa: Enable user to query vdpa device info")

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