Am Freitag, 22. Dezember 2017, 08:48:03 CET schrieb Herbert Xu:
Hi Herbert,
> On Tue, Dec 19, 2017 at 10:31:22AM +0000, Jonathan Cameron wrote:
> > This variable was increased and decreased without any protection.
> > Result was an occasional misscount and negative wrap around resulting
> > in false resource allocation failures.
> >
> > Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> > Fixes: 2d97591ef43d ("crypto: af_alg - consolidation of duplicate code")
>
> Actually I think it used to be fine because we held the socket
> lock in the async callback. It only got broken when we removed
> the socket lock from the callback.
But we cannot hold the lock in the async callback since it may be called in
interrupt context.
Ciao
Stephan
