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KVM: check injected pic irq within valid pic irqs

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Check that an injected pic irq is between 0 and 15.

Signed-off-by: Ben-Ami Yassour <benami@il.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Ben-Ami Yassour 2008-07-06 17:15:07 +03:00 committed by Avi Kivity
parent 19fdfa0d13
commit c65bbfa1d6
2 changed files with 6 additions and 2 deletions
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6
arch/x86/kvm/i8259.c
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@ -130,8 +130,10 @@ void kvm_pic_set_irq(void *opaque, int irq, int level)
{ {
struct kvm_pic *s = opaque; struct kvm_pic *s = opaque;
pic_set_irq1(&s->pics[irq >> 3], irq & 7, level); if (irq >= 0 && irq < PIC_NUM_PINS) {
pic_update_irq(s); pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
pic_update_irq(s);
}
} }
/* /*

2
arch/x86/kvm/irq.h
View file

@ -30,6 +30,8 @@
#include "ioapic.h" #include "ioapic.h"
#include "lapic.h" #include "lapic.h"
#define PIC_NUM_PINS 16
struct kvm; struct kvm;
struct kvm_vcpu; struct kvm_vcpu;