On Fri, Jun 29, 2012 at 09:56:24AM -0600, Alex Williamson wrote:
> We only know of one so far.
> 
> Signed-off-by: Alex Williamson <alex.william...@redhat.com>

BTW should we sanitize padding as well?

> ---
> 
>  virt/kvm/eventfd.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
> index c307c24..7d7e2aa 100644
> --- a/virt/kvm/eventfd.c
> +++ b/virt/kvm/eventfd.c
> @@ -340,6 +340,9 @@ kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd 
> *args)
>  int
>  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)
>               return kvm_irqfd_deassign(kvm, args);
>  
> 
> --
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