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From: syzbot <syzbot+b8c48ea38ca27d150063@syzkaller.appspotmail.com>
To: andrew@lunn.ch, cratiu@nvidia.com, davem@davemloft.net,
	 edumazet@google.com, horms@kernel.org, jv@jvosburgh.net,
	kuba@kernel.org,  kuni1840@gmail.com, kuniyu@amazon.com,
	kuniyu@google.com,  linux-kernel@vger.kernel.org,
	liuhangbin@gmail.com, netdev@vger.kernel.org,  pabeni@redhat.com,
	sdf@fomichev.me, stfomichev@gmail.com,
	 syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] WARNING in __linkwatch_sync_dev (2)
Date: Sat, 02 Aug 2025 08:01:03 -0700	[thread overview]
Message-ID: <688e282f.050a0220.81582.0000.GAE@google.com> (raw)
In-Reply-To: <684a39aa.a00a0220.1eb5f5.00fa.GAE@google.com>

syzbot has bisected this issue to:

commit 04efcee6ef8d0f01eef495db047e7216d6e6e38f
Author: Stanislav Fomichev <sdf@fomichev.me>
Date:   Fri Apr 4 16:11:22 2025 +0000

    net: hold instance lock during NETDEV_CHANGE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13eb22a2580000
start commit:   afd8c2c9e2e2 Merge branch 'ipv6-f6i-fib6_siblings-and-rt-f..
git tree:       net
final oops:     https://syzkaller.appspot.com/x/report.txt?x=101b22a2580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17eb22a2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a4bcc0a11b3192be
dashboard link: https://syzkaller.appspot.com/bug?extid=b8c48ea38ca27d150063
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11fa74a2580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=117731bc580000

Reported-by: syzbot+b8c48ea38ca27d150063@syzkaller.appspotmail.com
Fixes: 04efcee6ef8d ("net: hold instance lock during NETDEV_CHANGE")

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

      parent reply	other threads:[~2025-08-02 15:01 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-12  2:21 syzbot
2025-06-13  1:09 ` Stanislav Fomichev
2025-06-13 23:56   ` Jakub Kicinski
2025-06-13 20:30 ` syzbot
2025-06-16 15:54   ` Stanislav Fomichev
2025-06-16 16:07     ` syzbot
2025-08-02 23:09   ` Hillf Danton
2025-08-02 23:28     ` syzbot
2025-08-02 15:01 ` syzbot [this message]

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