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crypto: cryptd - initialize child shash_desc on import 

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>
This commit is contained in:
Ard Biesheuvel 2016-10-27 17:29:50 +03:00 committed by syphyr
parent d2971a5884
commit 4e4b4e98e1
1 changed files with 7 additions and 2 deletions
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9
crypto/cryptd.c
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@ -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);
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,