Re: INFO: task hung in io_uring_cancel_generic

From: Jens Axboe
Date: Tue Sep 07 2021 - 15:30:41 EST


On 9/7/21 5:50 AM, Hao Sun wrote:
> Hello,
>
> When using Healer to fuzz the latest Linux kernel, the following crash
> was triggered.
>
> HEAD commit: 7d2a07b76933 Linux 5.14
> git tree: upstream
> console output:
> https://drive.google.com/file/d/1c8uRooM0TwJiTIwEviOCB4RC-hhOgGHR/view?usp=sharing
> kernel config: https://drive.google.com/file/d/1XD9WYDViQLSXN7RGwH8AGGDvP9JvOghx/view?usp=sharing
> Similar report:
> https://groups.google.com/u/1/g/syzkaller-bugs/c/FvdcTiJIGtY/m/PcXkoenUAAAJ
>
> Sorry, I don't have a reproducer for this crash, hope the symbolized
> report can help.
> If you fix this issue, please add the following tag to the commit:
> Reported-by: Hao Sun <sunhao.th@xxxxxxxxx>

Would be great with a reproducer for this one, though...

--
Jens Axboe