xfs_buf_lru_add(
	struct xfs_buf	*bp)
{
	struct xfs_buftarg *btp = bp->b_target;

	spin_lock(&btp->bt_lru_lock);
	if (list_empty(&bp->b_lru)) {
		atomic_inc(&bp->b_hold);
		list_add_tail(&bp->b_lru, &btp->bt_lru);
		btp->bt_lru_nr++;
		bp->b_lru_flags &= ~_XBF_LRU_DISPOSE;
	}
	spin_unlock(&btp->bt_lru_lock);
}

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.