From: Jens Axboe <axboe@kernel.dk>
To: Anton Volkov <avolkov@ispras.ru>, tom.leiming@gmail.com
Cc: osandov@fb.com, linux-kernel@vger.kernel.org,
linux-block@vger.kernel.org, ldv-project@linuxtesting.org,
khoroshilov@ispras.ru
Subject: Re: [PATCH] loop: fix to a race condition due to the early registration of device
Date: Tue, 15 Aug 2017 12:51:05 -0600 [thread overview]
Message-ID: <1426f1f4-4193-e107-4191-251888bc0952@kernel.dk> (raw)
In-Reply-To: <1502109470-2945-1-git-send-email-avolkov@ispras.ru>
On 08/07/2017 06:37 AM, Anton Volkov wrote:
> The early device registration made possible a race leading to allocations
> of disks with wrong minors.
>
> This patch moves the device registration further down the loop_init
> function to make the race infeasible.
>
> Found by Linux Driver Verification project (linuxtesting.org).
Added for 4.14, thanks.
--
Jens Axboe
prev parent reply other threads:[~2017-08-15 18:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-28 15:55 Possible race in loop.ko Anton Volkov
2017-08-01 12:39 ` Ming Lei
2017-08-03 15:01 ` [PATCH] loop: fix to a race condition due to the early registration of device Anton Volkov
2017-08-07 2:39 ` Ming Lei
2017-08-07 12:37 ` Anton Volkov
2017-08-07 12:54 ` Johannes Thumshirn
2017-08-07 13:09 ` Anton Volkov
2017-08-07 13:24 ` Johannes Thumshirn
2017-08-08 22:00 ` Omar Sandoval
2017-08-10 15:46 ` Anton Volkov
2017-08-15 18:51 ` Jens Axboe [this message]
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