From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 10 Dec 2007 02:55:21 +0000 (+0800)
Subject: [CRYPTO] authenc: Use RTA_OK to check length
X-Git-Tag: v2.6.25-rc1~1242^2~54
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12dc5e62b4f93f1d399fd81e35be3f9ea0027712;p=linux-2.6

[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 80d9d0b18c..aa442dea5c 100644
--- 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;