On Sun, 2012-07-01 at 11:26 +0300, Michael S. Tsirkin wrote:
> 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.williamson@xxxxxxxxxx>
>
> BTW should we sanitize padding as well?
I imagine that to make use of a field in the padding we'll set a bit in
the flags to indicate that the field is present/valid. That way we
don't care about garbage in the padding as long as we can sanitize the
flags. Thanks,
Alex
> > ---
> >
> > 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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