circuit_queue_streams_are_blocked(circuit_t *circ)
{
  if (CIRCUIT_IS_ORIGIN(circ)) {
    return circ->streams_blocked_on_n_chan;
  } else {
    return circ->streams_blocked_on_p_chan;
  }
}

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.