LayoutPoint RenderBox::flipForWritingModeIncludingColumns(const LayoutPoint& point) const
{
    if (!hasColumns() || !style()->isFlippedBlocksWritingMode())
        return flipForWritingMode(point);
    return toRenderBlock(this)->flipForWritingModeIncludingColumns(point);
}

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.