Re: [syzbot] [reiserfs?] KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list

From: Jan Kara
Date: Mon Feb 12 2024 - 07:54:04 EST


On Fri 09-02-24 18:39:03, 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=1257a6ec180000
> start commit: f5837722ffec Merge tag 'mm-hotfixes-stable-2023-12-27-15-0..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=f8e72bae38c079e4
> dashboard link: https://syzkaller.appspot.com/bug?extid=174ea873dedcd7fb6de3
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14db6ca1e80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12159e5ee80000
>
> 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