ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port)
{
    struct ofport *port = ofproto_get_port(ofproto, ofp_port);
    if (port) {
        if (port->ofproto->ofproto_class->set_stp_port) {
            port->ofproto->ofproto_class->set_stp_port(port, NULL);
        }
        if (port->ofproto->ofproto_class->set_rstp_port) {
            port->ofproto->ofproto_class->set_rstp_port(port, NULL);
        }
        if (port->ofproto->ofproto_class->set_cfm) {
            port->ofproto->ofproto_class->set_cfm(port, NULL);
        }
        if (port->ofproto->ofproto_class->bundle_remove) {
            port->ofproto->ofproto_class->bundle_remove(port);
        }
    }
}

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.