bool RenderLayerCompositor::requiresCompositingForFilters(RenderObject* renderer) const
{
    if (!(m_compositingTriggers & ChromeClient::FilterTrigger))
        return false;

    return renderer->hasFilter();
}

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.