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From: Pavel Begunkov <asml.silence@gmail.com>
To: Hao Sun <sunhao.th@gmail.com>, Jens Axboe <axboe@kernel.dk>,
	Pavel Begunkov <asml.silence@gmail.co>,
	io-uring@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: Re: WARNING in io_wq_submit_work
Date: Wed, 8 Sep 2021 20:59:16 +0100	[thread overview]
Message-ID: <ef57e25a-3938-96ba-5f20-7e4a118f29bc@gmail.com> (raw)
In-Reply-To: <CACkBjsa=DmomBxEub98ihEu0T37ryz+_4EQgGF1dURtTvdLEtQ@mail.gmail.com>

On 9/8/21 7:46 AM, Hao Sun wrote:
> Hello,
> 
> When using Healer to fuzz the latest Linux kernel, the following crash
> was triggered.
> 
> HEAD commit: 4b93c544e90e-thunderbolt: test: split up test cases
> git tree: upstream
> console output:
> https://drive.google.com/file/d/1RZfBThifWgo2CiwPTeNzYG4P0gkZlINT/view?usp=sharing
> kernel config: https://drive.google.com/file/d/1c0u2EeRDhRO-ZCxr9MP2VvAtJd6kfg-p/view?usp=sharing
> C reproducer: https://drive.google.com/file/d/18LXBclar1FlOngPkayjq8k-vKcw-SR98/view?usp=sharing
> Syzlang reproducer:
> https://drive.google.com/file/d/1rUgX8kHPhxiYHIbuhZnDZknDe1DzDmhd/view?usp=sharing
> Similar report:
> https://groups.google.com/u/1/g/syzkaller-bugs/c/siEpifWtNAw/m/IkUK1DmOCgAJ
> 
> If you fix this issue, please add the following tag to the commit:
> Reported-by: Hao Sun <sunhao.th@gmail.com>

Reproduced and fixed. "WARNING in io_req_complete_post" should
be the same problem, doesn't fail with the fix. Thanks!

https://git.kernel.dk/cgit/linux-block/commit/?h=io_uring-5.15&id=713b9825a4c47897f66ad69409581e7734a8728e

-- 
Pavel Begunkov

  parent reply	other threads:[~2021-09-08 19:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08  6:46 Hao Sun
2021-09-08  8:18 ` Pavel Begunkov
2021-09-08 19:59 ` Pavel Begunkov [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-01-17  8:27 syzbot
2021-01-17 10:57 ` Pavel Begunkov

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