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

From: Jan Kara
Date: Mon Mar 11 2024 - 05:25:37 EST


On Sat 02-03-24 07:19:04, 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=11030516180000
> start commit: f8dba31b0a82 Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' ..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=3c980bfe8b399968
> dashboard link: https://syzkaller.appspot.com/bug?extid=0b7937459742a0a4cffd
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10bcb6b5280000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12fbcfd1280000
>
> 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