R: Re: [PATCH] KVM: arm/arm64: Allow usercopy to vcpu->arch.ctxt and arm64 debug

Paolo Bonzini pbonzini at redhat.com
Mon Oct 23 14:06:14 PDT 2017


----- Kees Cook <keescook at chromium.org> ha scritto:
> On Mon, Oct 23, 2017 at 7:14 AM, Paolo Bonzini <pbonzini at redhat.com> wrote:
> > On 22/10/2017 09:44, Christoffer Dall wrote:
> >> However, I think it's much clearer if I
> >> rewrite these to use get_user() and put_user().  v2 incoming.
> >
> > I'd actually prefer if you all do a trivial conversion to
> > kvm_init_usercopy to begin with.  In fact, we could just change the
> > default from "0, 0" to "0, sizeof (kvm_arch_vcpu)" in kvm_init.  Any
> > other change can be applied after the patches are merged to Linus's
> > tree, especially with KVM Forum and the merge window both coming soon.
> >
> > I'll send a v2 myself later this week.
> 
> Okay, which patches would you like me to carry in the usercopy
> whitelisting tree for the coming merge window?

v2 of mine, which shall come in the next couple of days.

Paolo


> 
> -Kees
> 
> -- 
> Kees Cook
> Pixel Security




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