Fix memory leak in ParseCRL_Extensions

Author: holtrop-wolfssl

wolfcrypt/src/asn.c

@@ -40593,9 +40593,13 @@ static int ParseCRL_Extensions(DecodedCRL* dcrl, const byte* buf, word32 idx,
                     ret = GetInt(m, buf, &localIdx, maxIdx);
                 }
 
-                if (ret == 0 && mp_toradix(m, (char*)dcrl->crlNumber,
-                             MP_RADIX_HEX) != MP_OKAY)
-                    ret = BUFFER_E;
+                if (ret == 0) {
+                    if (mp_toradix(m, (char*)dcrl->crlNumber,
+                             MP_RADIX_HEX) != MP_OKAY) {
+                        ret = BUFFER_E;
+                    }
+                    mp_free(m);
+                }
 
                 if (ret == 0) {
                     dcrl->crlNumberSet = 1;