From 57cfda1ac74e58767f6305bd1ea3449177425460 Mon Sep 17 00:00:00 2001 From: Romain Perier Date: Tue, 9 Aug 2016 11:03:19 +0200 Subject: [PATCH] crypto: marvell - Don't overwrite default creq->state during initialization Currently, in mv_cesa_{md5,sha1,sha256}_init creq->state is initialized before the call to mv_cesa_ahash_init. This is wrong because this function fills creq with zero by using memset, so its 'state' that contains the default DIGEST is overwritten. This commit fixes the issue by initializing creq->state just after the call to mv_cesa_ahash_init. Fixes: commit b0ef51067cb4 ("crypto: marvell/cesa - initialize hash...") Signed-off-by: Romain Perier Signed-off-by: Herbert Xu --- drivers/crypto/marvell/hash.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index cf8063d8c488..44a8abeba295 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -800,13 +800,14 @@ static int mv_cesa_md5_init(struct ahash_request *req) struct mv_cesa_op_ctx tmpl = { }; mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_MD5); + + mv_cesa_ahash_init(req, &tmpl, true); + creq->state[0] = MD5_H0; creq->state[1] = MD5_H1; creq->state[2] = MD5_H2; creq->state[3] = MD5_H3; - mv_cesa_ahash_init(req, &tmpl, true); - return 0; } @@ -868,14 +869,15 @@ static int mv_cesa_sha1_init(struct ahash_request *req) struct mv_cesa_op_ctx tmpl = { }; mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA1); + + mv_cesa_ahash_init(req, &tmpl, false); + creq->state[0] = SHA1_H0; creq->state[1] = SHA1_H1; creq->state[2] = SHA1_H2; creq->state[3] = SHA1_H3; creq->state[4] = SHA1_H4; - mv_cesa_ahash_init(req, &tmpl, false); - return 0; } @@ -937,6 +939,9 @@ static int mv_cesa_sha256_init(struct ahash_request *req) struct mv_cesa_op_ctx tmpl = { }; mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA256); + + mv_cesa_ahash_init(req, &tmpl, false); + creq->state[0] = SHA256_H0; creq->state[1] = SHA256_H1; creq->state[2] = SHA256_H2; @@ -946,8 +951,6 @@ static int mv_cesa_sha256_init(struct ahash_request *req) creq->state[6] = SHA256_H6; creq->state[7] = SHA256_H7; - mv_cesa_ahash_init(req, &tmpl, false); - return 0; }