int page_readlink(struct dentry *dentry, char __user *buffer, int buflen)
{
	DEFINE_DELAYED_CALL(done);
	int res = readlink_copy(buffer, buflen,
				page_get_link(dentry, d_inode(dentry),
					      &done));
	do_delayed_call(&done);
	return res;
}

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