diff mbox series

[3.10,019/319] crypto: cryptd - initialize child shash_desc on import

Message ID 1486322063-7558-20-git-send-email-w@1wt.eu
State New
Headers show
Series None | expand

Commit Message

Willy Tarreau Feb. 5, 2017, 7:09 p.m. UTC 
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>


commit 0bd2223594a4dcddc1e34b15774a3a4776f7749e upstream.

When calling .import() on a cryptd ahash_request, the structure members
that describe the child transform in the shash_desc need to be initialized
like they are when calling .init()

Cc: stable@vger.kernel.org
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>

Signed-off-by: Willy Tarreau <w@1wt.eu>

---
 crypto/cryptd.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

-- 
2.8.0.rc2.1.gbe9624a

--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox series

Patch

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 75c415d..d85fab9 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -565,9 +565,14 @@  static int cryptd_hash_export(struct ahash_request *req, void *out)
 
 static int cryptd_hash_import(struct ahash_request *req, const void *in)
 {
-	struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct shash_desc *desc = cryptd_shash_desc(req);
+
+	desc->tfm = ctx->child;
+	desc->flags = req->base.flags;
 
-	return crypto_shash_import(&rctx->desc, in);
+	return crypto_shash_import(desc, in);
 }
 
 static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,