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KVM: arm/arm64: check IRQ number on userland injection
[cascardo/linux.git]
/
virt
/
kvm
/
arm
/
vgic.c
diff --git
a/virt/kvm/arm/vgic.c
b/virt/kvm/arm/vgic.c
index
7ed7873
..
78fb820
100644
(file)
--- a/
virt/kvm/arm/vgic.c
+++ b/
virt/kvm/arm/vgic.c
@@
-1561,6
+1561,9
@@
int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid, unsigned int irq_num,
goto out;
}
+ if (irq_num >= kvm->arch.vgic.nr_irqs)
+ return -EINVAL;
+
vcpu_id = vgic_update_irq_pending(kvm, cpuid, irq_num, level);
if (vcpu_id >= 0) {
/* kick the specified vcpu */