static int do_path_lookup(int dfd, const char *name,
				unsigned int flags, struct nameidata *nd)
{
	struct filename filename = { .name = name };

	return filename_lookup(dfd, &filename, flags, nd);
}

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.