linux-kernel - Re: [syzbot] [ocfs2?] possible deadlock in ocfs2_finish_quota

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <680081ae.050a0220.d9ef5.0003.GAE@google.com>
Date: Wed, 16 Apr 2025 21:21:02 -0700
From: syzbot <syzbot+f59a1ae7b7227c859b8f@...kaller.appspotmail.com>
To: heming.zhao@...e.com, jack@...e.cz, joseph.qi@...ux.alibaba.com, 
	linux-kernel@...r.kernel.org, m.masimov@...integration.ru, 
	ocfs2-devel@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] possible deadlock in ocfs2_finish_quota_recovery

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:         11376431 ocfs2: Stop quota recovery before disabling q..
git tree:       https://github.com/zhaohem/linux jans_ocfs2
console output: https://syzkaller.appspot.com/x/log.txt?x=14183a3f980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5348e7fd1b89a770
dashboard link: https://syzkaller.appspot.com/bug?extid=f59a1ae7b7227c859b8f
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.