linux-kernel - Re: [syzbot] [net?] BUG: sleeping function called from invalid context in synchronize

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Message-ID: <0000000000008750c8061db47514@google.com>
Date: Sat, 20 Jul 2024 14:26:03 -0700
From: syzbot <syzbot+9b277e2c2076e2661f61@...kaller.appspotmail.com>
To: andy@...yhouse.net, davem@...emloft.net, edumazet@...gle.com, 
	hdanton@...a.com, j.vosburgh@...il.com, jhs@...atatu.com, jiri@...dia.com, 
	jiri@...nulli.us, johannes.berg@...el.com, jv@...sburgh.net, kuba@...nel.org, 
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com, 
	syzkaller-bugs@...glegroups.com, xiyou.wangcong@...il.com
Subject: Re: [syzbot] [net?] BUG: sleeping function called from invalid
 context in synchronize_net

syzbot has bisected this issue to:

commit facd15dfd69122042502d99ab8c9f888b48ee994
Author: Johannes Berg <johannes.berg@...el.com>
Date:   Mon Dec 4 20:47:07 2023 +0000

    net: core: synchronize link-watch when carrier is queried

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=116d4a1d980000
start commit:   523b23f0bee3 Add linux-next specific files for 20240710
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=136d4a1d980000
console output: https://syzkaller.appspot.com/x/log.txt?x=156d4a1d980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=98dd8c4bab5cdce
dashboard link: https://syzkaller.appspot.com/bug?extid=9b277e2c2076e2661f61
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=148611e1980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10ec9585980000

Reported-by: syzbot+9b277e2c2076e2661f61@...kaller.appspotmail.com
Fixes: facd15dfd691 ("net: core: synchronize link-watch when carrier is queried")

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