void Element::unregisterNamedFlowContentNode()
{
    if (RuntimeEnabledFeatures::cssRegionsEnabled() && inNamedFlow() && document()->renderView())
        document()->renderView()->flowThreadController()->unregisterNamedFlowContentNode(this);
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.