registrar: Fix memory leak around path and outbound header parsing

- Fix leak of parsed URI and URI parameters during a call to save()
(cherry picked from commit 56c880120c07443eceb732117f0f1aa3558dcfe5)

modules/registrar/path.c

@@ -96,6 +96,8 @@ int build_path_vector(struct sip_msg *_m, str *path, str *received)
 				LM_ERR("failed to parse parameters of first hop\n");
 				goto error;
 			}
+			/* Not interested in param body - just the hooks */
+			free_params(params);
 
 			if (hooks.contact.received) {
 			        uri_str.s = uri_buf;
@@ -107,14 +109,6 @@ int build_path_vector(struct sip_msg *_m, str *path, str *received)
 				*received = uri_str;
 				LM_DBG("received is <%.*s>\n", received->len, received->s);
 			}
-				
-			/*for (;params; params = params->next) {
-				if (params->type == P_RECEIVED) {
-					*received = hooks.contact.received->body;
-					break;
-				}
-			}*/
-			free_params(params);
 		}
 		free_rr(&route);
 	}

modules/registrar/save.c

@@ -923,17 +923,21 @@ int save(struct sip_msg* _m, udomain_t* _d, int _cflags, str *_uri)
 			}
 			if (parse_uri(route->nameaddr.uri.s, route->nameaddr.uri.len, &puri) < 0) {
 				LM_ERR("Failed to parse Path: URI\n");
+				free_rr(&route);
 				goto error;
 			}
 			if (parse_params(&puri.params, CLASS_URI, &hooks, &params) != 0) {
 				LM_ERR("Failed to parse Path: URI parameters\n");
+				free_rr(&route);
 				goto error;
 			}
+			/* Not interested in param body - just the hooks */
+			free_params(params);
 			if (!hooks.uri.ob) {
 				/* No ;ob parameter to top Path: URI - no outbound */
 				use_ob = 0;
 			}
-
+			free_rr(&route);
 		} else {
 			/* No Path: header - no outbound */
 			use_ob = 0;