static int common_perm_rm(int op, struct path *dir,
			  struct dentry *dentry, u32 mask)
{
	struct inode *inode = dentry->d_inode;
	struct path_cond cond = { };

	if (!inode || !dir->mnt || !mediated_filesystem(inode))
		return 0;

	cond.uid = inode->i_uid;
	cond.mode = inode->i_mode;

	return common_perm_dir_dentry(op, dir, dentry, mask, &cond);
}

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.