Re: [syzbot] WARNING: still has locks held in io_ring_submit_lock

From: Jens Axboe
Date: Sun May 15 2022 - 13:23:11 EST


On 5/15/22 8:52 AM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 1e1b28b936ae Add linux-next specific files for 20220513
> git tree: linux-next
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=10872211f00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=e4eb3c0c4b289571
> dashboard link: https://syzkaller.appspot.com/bug?extid=987d7bb19195ae45208c
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1141bd21f00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=167ebdbef00000
>
> The issue was bisected to:
>
> commit 6da69b1da130e7d96766042750cd9f902e890eba
> Author: Xiaomeng Tong <xiam0nd.tong@xxxxxxxxx>
> Date: Mon Mar 28 03:24:31 2022 +0000
>
> net: dsa: bcm_sf2_cfp: fix an incorrect NULL check on list iterator

That looks totally unrelated...

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

--
Jens Axboe