crypto: hash - Fix page length clamping in hash walk

[ Upstream commit 13f4bb78cf ]

The crypto hash walk code is broken when supplied with an offset
greater than or equal to PAGE_SIZE.  This patch fixes it by adjusting
walk->pg and walk->offset when this happens.

Cc: <stable@vger.kernel.org>
Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
This commit is contained in:
Herbert Xu 2016-05-04 17:52:56 +08:00 • committed by Sasha Levin
commit 82b612eb12