void LayerWebKitThread::setNeedsDisplayInRect(const FloatRect& dirtyRect)
{
    if (m_tiler)
        m_tiler->setNeedsDisplay(dirtyRect);
    setNeedsCommit(); // FIXME: Replace this with a more targeted message for dirty rect handling with plugin content?
}

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.