Date: Mon, 23 Oct 2017 17:06:14 -0400 (EDT) From: Paolo Bonzini <pbonzini@...hat.com> To: Kees Cook <keescook@...omium.org> Cc: Christoffer Dall <cdall@...aro.org>, Christoffer Dall <christoffer.dall@...aro.org>, kvmarm@...ts.cs.columbia.edu, linux-arm-kernel@...ts.infradead.org, KVM <kvm@...r.kernel.org>, kernel-hardening@...ts.openwall.com, Radim Krčmář <rkrcmar@...hat.com>, Marc Zyngier <marc.zyngier@....com> Subject: R: Re: [PATCH] KVM: arm/arm64: Allow usercopy to vcpu->arch.ctxt and arm64 debug ----- Kees Cook <keescook@...omium.org> ha scritto: > On Mon, Oct 23, 2017 at 7:14 AM, Paolo Bonzini <pbonzini@...hat.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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