linux-kernel - Re: [syzbot] [gfs2?] general protection fault in gfs2_evict

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: <CACT4Y+ZGEucU4yhooRGDia5jxjEb7BhSVh9y9s8UfRzrZapusA@mail.gmail.com>
Date:   Wed, 14 Jun 2023 10:50:03 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+8a5fc6416c175cecea34@...kaller.appspotmail.com>
Cc:     agruenba@...hat.com, cluster-devel@...hat.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        rpeterso@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [gfs2?] general protection fault in gfs2_evict_inode (2)

On Mon, 12 Jun 2023 at 23:05, syzbot
<syzbot+8a5fc6416c175cecea34@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 504a10d9e46bc37b23d0a1ae2f28973c8516e636
> Author: Bob Peterson <rpeterso@...hat.com>
> Date:   Fri Apr 28 16:07:46 2023 +0000
>
>     gfs2: Don't deref jdesc in evict
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1544372d280000
> start commit:   7df047b3f0aa Merge tag 'vfio-v6.4-rc1' of https://github.c..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=474780ac1e194316
> dashboard link: https://syzkaller.appspot.com/bug?extid=8a5fc6416c175cecea34
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1294d2d2280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=104a7508280000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: gfs2: Don't deref jdesc in evict

Looks reasonable:

#syz fix: gfs2: Don't deref jdesc in evict