linux-kernel - Re: [syzbot] KASAN: slab-out-of-bounds Read in hfs_cat

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+b3gvrcsXq7AaCBScFk2J9cZsaHh7SUSi4Q2KE1PkN5Ew@mail.gmail.com>
Date:   Wed, 1 Feb 2023 08:57:01 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+883fa6a25abf9dd035ef@...kaller.appspotmail.com>
Cc:     akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, slava@...eyko.com,
        syzkaller-bugs@...glegroups.com, zhangpeng362@...wei.com
Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in hfs_cat_keycmp

On Mon, 30 Jan 2023 at 22:20, syzbot
<syzbot+883fa6a25abf9dd035ef@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit c53ed55cb275344086e32a7080a6b19cb183650b
> Author: ZhangPeng <zhangpeng362@...wei.com>
> Date:   Fri Dec 2 03:00:38 2022 +0000
>
>     hfs: Fix OOB Write in hfs_asc2mac
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13294485480000
> start commit:   3a28c2c89f4b Merge tag 'unsigned-char-6.2-for-linus' of gi..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f3de84cba2ef4a23
> dashboard link: https://syzkaller.appspot.com/bug?extid=883fa6a25abf9dd035ef
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1261813b880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=114306af880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: hfs: Fix OOB Write in hfs_asc2mac
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Hard to say if it's the fix or not, bisection diverged due to an
unrelated kernel bug. But this bug is probably fixed as well, so
without having a better candidate, let's close the report:

#syz fix: hfs: Fix OOB Write in hfs_asc2mac