1 files changed, 8 insertions, 3 deletions

diff --git a/src/lib/libcrypto/evp/p5_crpt2.c b/src/lib/libcrypto/evp/p5_crpt2.c
index 1f94e1ef88..1d5fabc4b2 100644
--- a/src/lib/libcrypto/evp/p5_crpt2.c
+++ b/src/lib/libcrypto/evp/p5_crpt2.c
@@ -194,11 +194,16 @@ int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
 
         /* Now decode key derivation function */
 
+        if(!pbe2->keyfunc->parameter ||
+                 (pbe2->keyfunc->parameter->type != V_ASN1_SEQUENCE))
+                {
+                EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
+                goto err;
+                }
+
         pbuf = pbe2->keyfunc->parameter->value.sequence->data;
         plen = pbe2->keyfunc->parameter->value.sequence->length;
-        if(!pbe2->keyfunc->parameter ||
-                 (pbe2->keyfunc->parameter->type != V_ASN1_SEQUENCE) ||
-                                !(kdf = d2i_PBKDF2PARAM(NULL, &pbuf, plen)) ) {
+        if(!(kdf = d2i_PBKDF2PARAM(NULL, &pbuf, plen)) ) {
                 EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
                 goto err;
         }