static __inline__ int scm_send(struct socket *sock, struct msghdr *msg,
			       struct scm_cookie *scm)
{
	memset(scm, 0, sizeof(*scm));
	unix_get_peersec_dgram(sock, scm);
	if (msg->msg_controllen <= 0)
		return 0;
	return __scm_send(sock, msg, scm);
}
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.