From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754472Ab3LPPWo (ORCPT ); Mon, 16 Dec 2013 10:22:44 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:42040 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753762Ab3LPPWn (ORCPT ); Mon, 16 Dec 2013 10:22:43 -0500 Date: Mon, 16 Dec 2013 07:24:46 -0800 From: Greg KH To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, francis.moro@gmail.com, kvm@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH backport hints for <3.10] KVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368) Message-ID: <20131216152446.GA1894@kroah.com> References: <1387193897-24658-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1387193897-24658-1-git-send-email-pbonzini@redhat.com> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 16, 2013 at 12:38:17PM +0100, Paolo Bonzini wrote: > The KVM patch "fix vapic memory corruption" applies to most kernels that > have KVM, but the fix does not apply on many older branches. The APIs it > uses are available in 3.1, but until 3.9 kvm_gfn_to_hva_cache_init had > one fewer parameter. > > The comments in this patch should help fixing kvm_lapic_set_vapic_addr > in older kernels. I will review the backports as they are posted to > LKML (if I am CCed...). > > Signed-off-by: Paolo Bonzini > --- > arch/x86/kvm/lapic.c | 38 +++++++++++++++++++++++++++++--------- > arch/x86/kvm/lapic.h | 4 ++-- > arch/x86/kvm/x86.c | 33 +-------------------------------- > 3 files changed, 32 insertions(+), 43 deletions(-) I don't understand, what are people supposed to do with this? greg k-h