nfs4_acl_get_whotype(char *p, u32 len)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(s2t_map); i++) {
		if (s2t_map[i].stringlen == len &&
				0 == memcmp(s2t_map[i].string, p, len))
			return s2t_map[i].type;
	}
	return NFS4_ACL_WHO_NAMED;
}

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.