Linux 4.19.45

[thirdparty/kernel/stable-queue.git] / releases / 4.19.45 / crypto-ccree-use-correct-internal-state-sizes-for-export.patch

From f3df82b468f00cca241d96ee3697c9a5e7fb6bd0 Mon Sep 17 00:00:00 2001
From: Gilad Ben-Yossef <gilad@benyossef.com>
Date: Thu, 18 Apr 2019 16:39:02 +0300
Subject: crypto: ccree - use correct internal state sizes for export

From: Gilad Ben-Yossef <gilad@benyossef.com>

commit f3df82b468f00cca241d96ee3697c9a5e7fb6bd0 upstream.

We were computing the size of the import buffer based on the digest size
but the 318 and 224 byte variants use 512 and 256 bytes internal state
sizes respectfully, thus causing the import buffer to overrun.

Fix it by using the right sizes.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/ccree/cc_hash.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/crypto/ccree/cc_hash.c
+++ b/drivers/crypto/ccree/cc_hash.c
@@ -1616,7 +1616,7 @@ static struct cc_hash_template driver_ha
 			.setkey = cc_hash_setkey,
 			.halg = {
 				.digestsize = SHA224_DIGEST_SIZE,
-				.statesize = CC_STATE_SIZE(SHA224_DIGEST_SIZE),
+				.statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE),
 			},
 		},
 		.hash_mode = DRV_HASH_SHA224,
@@ -1641,7 +1641,7 @@ static struct cc_hash_template driver_ha
 			.setkey = cc_hash_setkey,
 			.halg = {
 				.digestsize = SHA384_DIGEST_SIZE,
-				.statesize = CC_STATE_SIZE(SHA384_DIGEST_SIZE),
+				.statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE),
 			},
 		},
 		.hash_mode = DRV_HASH_SHA384,