[CRYPTO] authenc: Use RTA_OK to check length

This patch changes setkey to use RTA_OK to check the validity of the
setkey request.

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

diff --git a/crypto/authenc.c b/crypto/authenc.c
index 80d9d0b..aa442de 100644 (file)
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -44,7 +44,7 @@ static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
        struct crypto_authenc_key_param *param;
        int err = -EINVAL;
 
-       if (keylen < sizeof(*rta))
+       if (!RTA_OK(rta, keylen))
                goto badkey;
        if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
                goto badkey;