Re: [syzbot] [udf?] KASAN: use-after-free Read in udf_finalize_lvid

From: Jan Kara
Date: Wed Mar 06 2024 - 12:05:06 EST


On Mon 04-03-24 13:27:02, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@xxxxxxx>
> 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=1495d341180000
> start commit: 861deac3b092 Linux 6.7-rc7
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=e1e118a9228c45d7
> dashboard link: https://syzkaller.appspot.com/bug?extid=46073c22edd7f242c028
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a44d79e80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=130b99e9e80000
>
> 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@xxxxxxxx>
SUSE Labs, CR