linux-kernel - Re: [syzbot] [net?] possible deadlock in ipv6_sock_ac

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Message-ID: <67f11f05.050a0220.0a13.0238.GAE@google.com>
Date: Sat, 05 Apr 2025 05:16:05 -0700
From: syzbot <syzbot+be6f4b383534d88989f7@...kaller.appspotmail.com>
To: hdanton@...a.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] possible deadlock in ipv6_sock_ac_close (4)

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
unregister_netdevice: waiting for DEV to become free

unregister_netdevice: waiting for batadv0 to become free. Usage count = 3

Tested on:

commit:         a8662bcd Merge tag 'v6.15-p3' of git://git.kernel.org/..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16ec9b4c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f2054704dd53fb80
dashboard link: https://syzkaller.appspot.com/bug?extid=be6f4b383534d88989f7
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=15e4efb0580000