WARNING: locking bug in inet_autobind

Zhao, Yong Yong.Zhao at amd.com
Wed May 22 03:21:15 UTC 2019

This commit was reverted later. I guess the revert was probably not picked up properly.

From: syzbot <syzbot+94cc2a66fc228b23f360 at syzkaller.appspotmail.com>
Sent: Tuesday, May 21, 2019 11:16 PM
To: Zhao, Yong; airlied at linux.ie; Deucher, Alexander; amd-gfx at lists.freedesktop.org; ast at kernel.org; bpf at vger.kernel.org; Koenig, Christian; daniel at ffwll.ch; daniel at iogearbox.net; davem at davemloft.net; Zhou, David(ChunMing); dri-devel at lists.freedesktop.org; Quan, Evan; Kuehling, Felix; Wentland, Harry; kafai at fb.com; kuznet at ms2.inr.ac.ru; linux-kernel at vger.kernel.org; netdev at vger.kernel.org; Zeng, Oak; Huang, Ray; rex.zhu at amd.com; songliubraving at fb.com; syzkaller-bugs at googlegroups.com; yhs at fb.com; Zhao, Yong; yoshfuji at linux-ipv6.org
Subject: Re: WARNING: locking bug in inet_autobind

[CAUTION: External Email]

syzbot has bisected this bug to:

commit c0d9271ecbd891cdeb0fad1edcdd99ee717a655f
Author: Yong Zhao <Yong.Zhao at amd.com>
Date:   Fri Feb 1 23:36:21 2019 +0000

     drm/amdgpu: Delete user queue doorbell variables

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1433ece4a00000
start commit:   f49aa1de Merge tag 'for-5.2-rc1-tag' of git://git.kernel.o..
git tree:       net-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1633ece4a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1233ece4a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=163731f8a00000

Reported-by: syzbot+94cc2a66fc228b23f360 at syzkaller.appspotmail.com
Fixes: c0d9271ecbd8 ("drm/amdgpu: Delete user queue doorbell variables")

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