linux-kernel - Re: [patch] KVM: SVM: prevent DBG_DECRYPT and DBG

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Date:   Thu, 4 Apr 2019 13:55:34 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     "Singh, Brijesh" <brijesh.singh@....com>
cc:     Joerg Roedel <joro@...tes.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Borislav Petkov <bp@...e.de>,
        "x86@...nel.org" <x86@...nel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [patch] KVM: SVM: prevent DBG_DECRYPT and DBG_ENCRYPT overflow

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@...gle.com>
> > Signed-off-by: David Rientjes <rientjes@...gle.com>
> > ---
> >   arch/x86/kvm/svm.c | 12 +++++++++---
> >   1 file changed, 9 insertions(+), 3 deletions(-)
> > 
> 
> 
> Reviewed-by: Brijesh Singh <brijesh.singh@....com>
> 
> thanks
> 

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