static int security_validtrans_handle_fail(struct context *ocontext,
					   struct context *ncontext,
					   struct context *tcontext,
					   u16 tclass)
{
	char *o = NULL, *n = NULL, *t = NULL;
	u32 olen, nlen, tlen;

	if (context_struct_to_string(ocontext, &o, &olen))
		goto out;
	if (context_struct_to_string(ncontext, &n, &nlen))
		goto out;
	if (context_struct_to_string(tcontext, &t, &tlen))
		goto out;
	audit_log(current->audit_context, GFP_ATOMIC, AUDIT_SELINUX_ERR,
		  "security_validate_transition:  denied for"
		  " oldcontext=%s newcontext=%s taskcontext=%s tclass=%s",
		  o, n, t, sym_name(&policydb, SYM_CLASSES, tclass-1));
out:
	kfree(o);
	kfree(n);
	kfree(t);

	if (!selinux_enforcing)
		return 0;
	return -EPERM;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.