static ssize_t splice_write_null(struct pipe_inode_info *pipe, struct file *out,
				 loff_t *ppos, size_t len, unsigned int flags)
{
	return splice_from_pipe(pipe, out, ppos, len, flags, pipe_to_null);
}

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.