Re: [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbSplit

From: Jan Kara
Date: Tue Feb 06 2024 - 05:17:25 EST


On Tue 06-02-24 01:31:04, 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=110ffd6c180000
> start commit: 708283abf896 Merge tag 'dmaengine-6.6-rc1' of git://git.ke..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=26188a62745981b4
> dashboard link: https://syzkaller.appspot.com/bug?extid=8c777e17f74c66068ffa
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=138fb834680000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1399c448680000
>
> 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@xxxxxxxx>
SUSE Labs, CR