Hello, Omar.

It was a purely theoretical race that had been considered to be possible in real-life.


Regards,
Anton

On 09.08.2017 01:00, Omar Sandoval wrote:
On Mon, Aug 07, 2017 at 03:37:50PM +0300, 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).

Signed-off-by: Anton Volkov <avol...@ispras.ru>
Reviewed-by: Ming Lei <ming....@redhat.com>

Hi, Anton,

Were you able to reproduce this issue or was it purely theoretical? If
the former, it'd be nice if you could add a test case to blktests [1].

1: https://github.com/osandov/blktests

Thanks!
Omar


-- Anton Volkov
Linux Verification Center, ISPRAS
web: http://linuxtesting.org
e-mail: avol...@ispras.ru

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