Messages in this thread | | | Date | Tue, 8 Aug 2017 15:00:47 -0700 | From | Omar Sandoval <> | Subject | Re: [PATCH] loop: fix to a race condition due to the early registration of device |
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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 <avolkov@ispras.ru> > Reviewed-by: Ming Lei <ming.lei@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
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