EAP-SIM DB: Fix a memory leak on DB connection re-opening

Signed-hostap: Jouni Malinen <j@w1.fi>

src/eap_server/eap_sim_db.c

@@ -340,6 +340,7 @@ static int eap_sim_db_open_socket(struct eap_sim_db_data *data)
 	addr.sun_family = AF_UNIX;
 	os_snprintf(addr.sun_path, sizeof(addr.sun_path),
 		    "/tmp/eap_sim_db_%d-%d", getpid(), counter++);
+	os_free(data->local_sock);
 	data->local_sock = os_strdup(addr.sun_path);
 	if (bind(data->sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
 		perror("bind(eap_sim_db)");