From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F283EC433B4 for ; Sat, 8 May 2021 10:33:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2B76613EE for ; Sat, 8 May 2021 10:33:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230397AbhEHK1q (ORCPT ); Sat, 8 May 2021 06:27:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:54778 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230234AbhEHK1o (ORCPT ); Sat, 8 May 2021 06:27:44 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8668861107; Sat, 8 May 2021 10:26:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620469603; bh=DvSUl04cKdEjrduzfuDLwpeh8ofSPAD1e4KGPH51WCg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=C9nq7UDLQbIC50SaELxPGinI23wLIjk7w1/9IwsgOEiyte4FXazMqUg3itNnNWr4F Igg4Mf33Dddrr6x+NdZC++2astH6W9hJS1oLRg4Td9dUzcTWOy6HJ+MZh2vFHpFL2y QCyuTUmWs35yEo1b0yORn6RZ3eevqMeHPHmIx9sg= Date: Sat, 8 May 2021 12:26:40 +0200 From: Greg KH To: linux-kernel@vger.kernel.org Cc: jroedel@suse.de, stable-commits@vger.kernel.org Subject: Re: Patch "x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path" has been added to the 5.12-stable tree Message-ID: References: <20210508032224.039CF613ED@mail.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210508032224.039CF613ED@mail.kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 07, 2021 at 11:22:23PM -0400, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path > > to the 5.12-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary > > The filename of the patch is: > x86-boot-compressed-64-check-sev-encryption-in-the-3.patch > and it can be found in the queue-5.12 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let know about it. > > > > commit 2c622aeb46b16fd945fc681fec16b989940b826d > Author: Joerg Roedel > Date: Fri Mar 12 13:38:23 2021 +0100 > > x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path > > [ Upstream commit fef81c86262879d4b1176ef51a834c15b805ebb9 ] > > Check whether the hypervisor reported the correct C-bit when running > as an SEV guest. Using a wrong C-bit position could be used to leak > sensitive data from the guest to the hypervisor. > > Signed-off-by: Joerg Roedel > Signed-off-by: Borislav Petkov > Link: https://lkml.kernel.org/r/20210312123824.306-8-joro@8bytes.org > Signed-off-by: Sasha Levin This breaks the build (link time) for 5.12, 5.11, and 5.10 trees, so I'll go drop it for now. if it needs to come back, can someone submit a working version? thanks, greg k-h