static void ubifs_invalidatepage(struct page *page, unsigned int offset,
				 unsigned int length)
{
	struct inode *inode = page->mapping->host;
	struct ubifs_info *c = inode->i_sb->s_fs_info;

	ubifs_assert(PagePrivate(page));
	if (offset || length < PAGE_CACHE_SIZE)
		/* Partial page remains dirty */
		return;

	if (PageChecked(page))
		release_new_page_budget(c);
	else
		release_existing_page_budget(c);

	atomic_long_dec(&c->dirty_pg_cnt);
	ClearPagePrivate(page);
	ClearPageChecked(page);
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.