Add free of the stats structure

src/receiver_utils.c

@@ -631,7 +631,9 @@ void state_del(receiver_state_t * state)
         pkt_del(state->recvd_data_buf[i]);
 
     free(state->ack_to_send);
+    free(state->stats);
     free(state);
+
 }
 
 void receiver_read_write_loop(int sfd, const char * pathname)