linux-kernel - Re: [syzbot] [hfs?] KASAN: slab-out-of-bounds Write in hfs_bnode_read

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Message-ID: <20240308221945.2ddq5o2h75x7eoej@quack3>
Date: Fri, 8 Mar 2024 23:19:45 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+4f7a1fc5ec86b956afb4@...kaller.appspotmail.com>
Cc: axboe@...nel.dk, brauner@...nel.org, jack@...e.cz,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [hfs?] KASAN: slab-out-of-bounds Write in
 hfs_bnode_read_key

On Sun 25-02-24 16:17:04, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@...e.cz>
> Date:   Wed Nov 1 17:43:10 2023 +0000
> 
>     fs: Block writes to mounted block devices
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12e81c54180000
> start commit:   e5282a7d8f6b Merge tag 'scsi-fixes' of git://git.kernel.or..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453
> dashboard link: https://syzkaller.appspot.com/bug?extid=4f7a1fc5ec86b956afb4
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12feb345280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=123cb2a5280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
 
Unclear but let's see whether there are other reproducers.

#syz fix: fs: Block writes to mounted block devices

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