From: Jens Axboe <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Cc: Josef Grieb <[email protected]>
Subject: Re: [PATCH 5.11] io_uring: NULL files dereference by SQPOLL
Date: Mon, 9 Nov 2020 07:21:49 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <d30884b71aa3e74c53a1c1f531b957cad222b7d0.1604840129.git.asml.silence@gmail.com>
On 11/8/20 5:55 AM, Pavel Begunkov wrote:
> SQPOLL task may find sqo_task->files == NULL and
> __io_sq_thread_acquire_files() would leave it unset, so following
> fget_many() and others try to dereference NULL and fault. Propagate
> an error files are missing.
Applied, thanks.
--
Jens Axboe
next prev parent reply other threads:[~2020-11-09 14:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-08 12:55 [PATCH 5.11] io_uring: NULL files dereference by SQPOLL Pavel Begunkov
2020-11-09 14:21 ` Jens Axboe [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-11-07 21:16 Pavel Begunkov
2020-11-07 21:18 ` Pavel Begunkov
2020-11-07 21:54 ` Pavel Begunkov
2020-11-07 22:28 ` Jens Axboe
2020-11-07 22:47 ` Pavel Begunkov
2020-11-07 23:18 ` Jens Axboe
2020-11-08 2:09 ` Josef
2020-11-08 6:50 ` Josef
2020-11-08 11:39 ` Pavel Begunkov
2020-11-08 11:31 ` Pavel Begunkov
2020-11-08 11:24 ` Pavel Begunkov
2020-11-07 22:30 ` Jens Axboe
2020-11-07 22:49 ` Pavel Begunkov
2020-11-07 23:17 ` Jens Axboe
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