ofputil_format_port(ofp_port_t port, struct ds *s)
{
    char name[OFP_MAX_PORT_NAME_LEN];

    ofputil_port_to_string(port, name, sizeof name);
    ds_put_cstr(s, name);
}

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.