netdev - Re: [syzbot] [net?] WARNING in print_bfs

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Date: Fri, 5 May 2023 22:27:44 +0900
From: Mark Brown <broonie@...nel.org>
To: Tzung-Bi Shih <tzungbi@...nel.org>
Cc: syzbot <syzbot+630f83b42d801d922b8b@...kaller.appspotmail.com>,
	davem@...emloft.net, edumazet@...gle.com, groeck@...omium.org,
	jiri@...nulli.us, kuba@...nel.org, linmq006@...il.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, pabeni@...hat.com,
	syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] [net?] WARNING in print_bfs_bug (2)

On Wed, May 03, 2023 at 10:49:31AM +0800, Tzung-Bi Shih wrote:
> On Sat, Apr 29, 2023 at 03:54:28PM -0700, syzbot wrote:
> > syzbot has bisected this issue to:
> > 
> > commit 0a034d93ee929a9ea89f3fa5f1d8492435b9ee6e
> > Author: Miaoqian Lin <linmq006@...il.com>
> > Date:   Fri Jun 3 13:10:43 2022 +0000
> > 
> >     ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe
> > 
> > bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13d40608280000
> > start commit:   042334a8d424 atlantic:hw_atl2:hw_atl2_utils_fw: Remove unn..
> > git tree:       net-next
> > final oops:     https://syzkaller.appspot.com/x/report.txt?x=10340608280000
> > console output: https://syzkaller.appspot.com/x/log.txt?x=17d40608280000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=7205cdba522fe4bc
> > dashboard link: https://syzkaller.appspot.com/bug?extid=630f83b42d801d922b8b
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=147328f8280000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1665151c280000
> > 
> > Reported-by: syzbot+630f83b42d801d922b8b@...kaller.appspotmail.com
> > Fixes: 0a034d93ee92 ("ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe")

> I failed to see the connection between the oops and commit 0a034d93ee92.

syzbot seems to generate a *lot* of false positives, this looks like one
of them so it's probably safe to ignore the bisection.

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