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

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-prev] [day] [month] [year] [list]

Message-ID: <vnghd7yksmrxs7whd5axkb3naty2ppyw5jprbfatec7xglz6yx@zwrfsuuky2yn>
Date: Thu, 12 Jun 2025 10:24:13 +0200
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+180dd013ba371eabc162@...kaller.appspotmail.com>
Cc: akpm@...ux-foundation.org, heming.zhao@...e.com, jack@...e.cz, 
	jlbec@...lplan.org, joseph.qi@...ux.alibaba.com, linux-kernel@...r.kernel.org, 
	mark@...heh.com, ocfs2-devel@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] possible deadlock in deactivate_super (2)

On Tue 10-06-25 09:28:04, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit fcaf3b2683b05a9684acdebda706a12025a6927a
> Author: Jan Kara <jack@...e.cz>
> Date:   Thu Apr 24 13:45:13 2025 +0000
> 
>     ocfs2: stop quota recovery before disabling quotas
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=123ce9d4580000
> start commit:   8560697b23dc Merge tag '6.15-rc2-smb3-client-fixes' of git..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=170d968a88ba5c06
> dashboard link: https://syzkaller.appspot.com/bug?extid=180dd013ba371eabc162
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12d39b98580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10fbd204580000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Looks correct:
 
#syz fix: ocfs2: stop quota recovery before disabling quotas

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR