Merge pull request #6159 from philljj/zd15693

Fix ASN1_STRING leak in create_by_NID and create_by_txt

src/x509.c

@@ -11125,6 +11125,11 @@ err:
                                             dataSz) == WOLFSSL_SUCCESS) {
                     ne->set = 1;
                 }
+                else {
+                    /* Free the ASN1_STRING if it is not set. */
+                    wolfSSL_ASN1_STRING_free(ne->value);
+                    ne->value = NULL;
+                }
             }
         }
 
@@ -11174,6 +11179,11 @@ err:
                     == WOLFSSL_SUCCESS) {
                 ne->set = 1;
             }
+            else {
+                /* Free the ASN1_STRING if it is not set. */
+                wolfSSL_ASN1_STRING_free(ne->value);
+                ne->value = NULL;
+            }
         }
 
         return ne;