static inline int apic_find_highest_irr(struct kvm_lapic *apic)
{
	int result;

	/*
	 * Note that irr_pending is just a hint. It will be always
	 * true with virtual interrupt delivery enabled.
	 */
	if (!apic->irr_pending)
		return -1;

	kvm_x86_ops->sync_pir_to_irr(apic->vcpu);
	result = apic_search_irr(apic);
	ASSERT(result == -1 || result >= 16);

	return result;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.