crypto: gcm - restrict assoclen for rfc4543

[linux-2.6-block.git] / crypto / gcm.c

diff --git a/crypto/gcm.c b/crypto/gcm.c
index 2f3b50f8f3e0166105b2f22f2175ca2197395d55..73884208f07532761ac3c957c8c29897628ca455 100644 (file)
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -1034,12 +1034,14 @@ static int crypto_rfc4543_copy_src_to_dst(struct aead_request *req, bool enc)
 
 static int crypto_rfc4543_encrypt(struct aead_request *req)
 {
-       return crypto_rfc4543_crypt(req, true);
+       return crypto_ipsec_check_assoclen(req->assoclen) ?:
+              crypto_rfc4543_crypt(req, true);
 }
 
 static int crypto_rfc4543_decrypt(struct aead_request *req)
 {
-       return crypto_rfc4543_crypt(req, false);
+       return crypto_ipsec_check_assoclen(req->assoclen) ?:
+              crypto_rfc4543_crypt(req, false);
 }
 
 static int crypto_rfc4543_init_tfm(struct crypto_aead *tfm)