linux-kernel - Re: [syzbot] [udf?] KASAN: use-after-free Read in crc_itu

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Message-ID: <20240126141100.s6hphczfikjbbrm5@quack3>
Date: Fri, 26 Jan 2024 15:11:00 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+d8fc21bfa138a5ae916d@...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,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [udf?] KASAN: use-after-free Read in crc_itu_t

On Fri 26-01-24 05:12:04, 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=1204f1efe80000
> start commit:   a4d7d7011219 Merge tag 'spi-fix-v6.4-rc5' of git://git.ker..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7474de833c217bf4
> dashboard link: https://syzkaller.appspot.com/bug?extid=d8fc21bfa138a5ae916d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1442e70b280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16db80dd280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
 
Looks good:

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

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