Re: [patch] KVM: SVM: prevent DBG_DECRYPT and DBG_ENCRYPT overflow

From: David Rientjes
Date: Thu Apr 04 2019 - 16:55:38 EST


On Thu, 28 Mar 2019, Singh, Brijesh wrote:

> > This ensures that the address and length provided to DBG_DECRYPT and
> > DBG_ENCRYPT do not cause an overflow.
> >
> > At the same time, pass the actual number of pages pinned in memory to
> > sev_unpin_memory() as a cleanup.
> >
> > Reported-by: Cfir Cohen <cfir@xxxxxxxxxx>
> > Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
> > ---
> > arch/x86/kvm/svm.c | 12 +++++++++---
> > 1 file changed, 9 insertions(+), 3 deletions(-)
> >
>
>
> Reviewed-by: Brijesh Singh <brijesh.singh@xxxxxxx>
>
> thanks
>

Paolo, Radim, I don't see this in kvm.git, is it ready to be staged?