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KVM: Sanitize KVM_IRQFD flags

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Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Alex Williamson 2012-06-29 09:56:24 -06:00 committed by Marcelo Tosatti
parent f36992e312
commit 326cf0334b
1 changed files with 3 additions and 0 deletions
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3
virt/kvm/eventfd.c
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@ -340,6 +340,9 @@ kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args)
int int
kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args)
{ {
if (args->flags & ~KVM_IRQFD_FLAG_DEASSIGN)
return -EINVAL;
if (args->flags & KVM_IRQFD_FLAG_DEASSIGN) if (args->flags & KVM_IRQFD_FLAG_DEASSIGN)
return kvm_irqfd_deassign(kvm, args); return kvm_irqfd_deassign(kvm, args);