[PATCH 3.12 045/142] crypto: cryptd - Assign statesize properly

From: Jiri Slaby
Date: Mon Apr 10 2017 - 12:05:01 EST


From: "Wang, Rui Y" <rui.y.wang@xxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 1a07834024dfca5c4bed5de8f8714306e0a11836 upstream.

cryptd_create_hash() fails by returning -EINVAL. It is because after
8996eafdc ("crypto: ahash - ensure statesize is non-zero") all ahash
drivers must have a non-zero statesize.

This patch fixes the problem by properly assigning the statesize.

Signed-off-by: Rui Wang <rui.y.wang@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
crypto/cryptd.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index d85fab975514..acbe1b978431 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -606,6 +606,7 @@ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
inst->alg.halg.base.cra_flags = CRYPTO_ALG_ASYNC;

inst->alg.halg.digestsize = salg->digestsize;
+ inst->alg.halg.statesize = salg->statesize;
inst->alg.halg.base.cra_ctxsize = sizeof(struct cryptd_hash_ctx);

inst->alg.halg.base.cra_init = cryptd_hash_init_tfm;
--
2.12.2