crypto: cryptd - initialize child shash_desc on import
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>
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 77207b4..0c654e5 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -631,9 +631,14 @@
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);
- return crypto_shash_import(&rctx->desc, in);
+ desc->tfm = ctx->child;
+ desc->flags = req->base.flags;
+
+ return crypto_shash_import(desc, in);
}
static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,