linux-kernel - Re: [syzbot] [udf?] UBSAN: array-index-out-of-bounds in udf_process

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Message-ID: <20240215173723.qomaaju7mkytcu7c@quack3>
Date: Thu, 15 Feb 2024 18:37:23 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+abb7222a58e4ebc930ad@...kaller.appspotmail.com>
Cc: axboe@...nel.dk, brauner@...nel.org, jack@...e.com, jack@...e.cz,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	osmtendev@...il.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [udf?] UBSAN: array-index-out-of-bounds in
 udf_process_sequence

On Thu 15-02-24 09:30:02, 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=17ef13dc180000
> start commit:   9e6c269de404 Merge tag 'i2c-for-6.5-rc7' of git://git.kern..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=9c37cc0e4fcc5f8d
> dashboard link: https://syzkaller.appspot.com/bug?extid=abb7222a58e4ebc930ad
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=175ed6bba80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=146c8923a80000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Makes sense.

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

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