tree c9ffb0656fb4b93e9c8c0e4207a528e8de9ef617
parent 325e207324bc2eb2e246f5e2986d9e0b3ee0ba91
author Corentin Labbe <clabbe.montjoie@gmail.com> 1555575454 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1559310443 -0700

crypto: sun4i-ss - Fix invalid calculation of hash end

[ Upstream commit f87391558acf816b48f325a493d81d45dec40da0 ]

When nbytes < 4, end is wronlgy set to a negative value which, due to
uint, is then interpreted to a large value leading to a deadlock in the
following code.

This patch fix this problem.

Fixes: 6298e948215f ("crypto: sunxi-ss - Add Allwinner Security System crypto accelerator")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>