Session manager add builtin ex data

src/packet/packet.cpp

@@ -1101,6 +1101,7 @@ const char *packet_parse(struct packet *handler, const char *data, uint16_t len)
     handler->data_ptr = data;
     handler->data_len = len;
     handler->zone_id = 0;
+    handler->user_data = NULL;
 
     // TESTED
     return parse_ether(handler, data, len);