static int isofs_iget5_test(struct inode *ino, void *data)
{
	struct iso_inode_info *i = ISOFS_I(ino);
	struct isofs_iget5_callback_data *d =
		(struct isofs_iget5_callback_data*)data;
	return (i->i_iget5_block == d->block)
		&& (i->i_iget5_offset == d->offset);
}

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.