Paolo Bonzini 5678de3f15 KVM: ioapic: fix assignment of ioapic->rtc_status.pending_eoi (CVE-2014-0155) ... QE reported that they got the BUG_ON in ioapic_service to trigger. I cannot reproduce it, but there are two reasons why this could happen. The less likely but also easiest one, is when kvm_irq_delivery_to_apic does not deliver to any APIC and returns -1. Because irqe.shorthand == 0, the kvm_for_each_vcpu loop in that function is never reached. However, you can target the similar loop in kvm_irq_delivery_to_apic_fast; just program a zero logical destination address into the IOAPIC, or an out-of-range physical destination address. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2014-04-04 17:17:14 +02:00
..
kvm	KVM: ioapic: fix assignment of ioapic->rtc_status.pending_eoi (CVE-2014-0155)	2014-04-04 17:17:14 +02:00