linux-kernel - Re: [PATCH] loop: fix to a race condition due to the early registration of device

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Message-ID: <1426f1f4-4193-e107-4191-251888bc0952@kernel.dk>
Date:   Tue, 15 Aug 2017 12:51:05 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Anton Volkov <avolkov@...ras.ru>, tom.leiming@...il.com
Cc:     osandov@...com, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org, ldv-project@...uxtesting.org,
        khoroshilov@...ras.ru
Subject: Re: [PATCH] loop: fix to a race condition due to the early
 registration of device

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