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

From: Jan Kara
Date: Fri Jan 26 2024 - 09:11:19 EST


On Fri 26-01-24 05:12:04, 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=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@xxxxxxxx>
SUSE Labs, CR