crypto: sun4i-ss - Fix invalid calculation of hash end
authorCorentin Labbe <clabbe.montjoie@gmail.com>
Thu, 18 Apr 2019 08:17:34 +0000 (10:17 +0200)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 25 Apr 2019 07:38:12 +0000 (15:38 +0800)
commitf87391558acf816b48f325a493d81d45dec40da0
tree4afdcaad4a70ddcadf78d24445e4d6e3169d2d13
parent179930a62f3182eb384ae1e4d1ad47e97f6f5e90
crypto: sun4i-ss - Fix invalid calculation of hash end

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>
drivers/crypto/sunxi-ss/sun4i-ss-hash.c