Re: [syzbot] KASAN: use-after-free Read in io_fallback_req_func

From: Jens Axboe
Date: Thu Jan 12 2023 - 13:14:30 EST


On 1/12/23 3:09 AM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 0a093b2893c7 Add linux-next specific files for 20230112
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=103269ce480000
> kernel config: https://syzkaller.appspot.com/x/.config?x=835f3591019836d5
> dashboard link: https://syzkaller.appspot.com/bug?extid=bc022c162e3b001bf607
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Unfortunately, I don't have any reproducer for this issue yet.

#syz test: git://git.kernel.dk/linux.git for-next

--
Jens Axboe