void freeClientAsync(client *c) {
    if (c->flags & CLIENT_CLOSE_ASAP || c->flags & CLIENT_LUA) return;
    c->flags |= CLIENT_CLOSE_ASAP;
    listAddNodeTail(server.clients_to_close,c);
}

This label identifies security gaps where expected security features are missing or only partially implemented, reducing protection against unauthorized access or manipulation.