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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 CB8E8C33CB3 for ; Thu, 16 Jan 2020 06:44:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9C08E206D7 for ; Thu, 16 Jan 2020 06:44:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="K/HzM2Gi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729393AbgAPGoq (ORCPT ); Thu, 16 Jan 2020 01:44:46 -0500 Received: from mail-pj1-f50.google.com ([209.85.216.50]:51404 "EHLO mail-pj1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726726AbgAPGop (ORCPT ); Thu, 16 Jan 2020 01:44:45 -0500 Received: by mail-pj1-f50.google.com with SMTP id d15so1075216pjw.1 for ; Wed, 15 Jan 2020 22:44:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=ho/ewm07CGJce0VRV5f1Zp9BvvqWMhIZJJysfPQahVA=; b=K/HzM2GiA0OOMmCA86f6+S1PG6jEbmFcjSQU5PoU5RS2kpfM5AEwb/lAW9iHTFjZtI tFrDyiPG39384UyZfv8NdL9BzwJ+bHxaElW1hbEW1siW/O3jI5cPhH0eMLDvg7eY4nIU CPJ+IvFnhZsIr8oPuz/kMU9RmTTrmns+7MtXI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=ho/ewm07CGJce0VRV5f1Zp9BvvqWMhIZJJysfPQahVA=; b=HTt4m4Lzv9pNDydk1l0NpTESxaGS7qbrx4Kmm+abeWXX/gUVAdwYWsphLXDQmHelrQ GmWW+vY7mN+0J6HvNFEmd/cxVrjspbO26WAD9HmV4sIIVUDc8hPkzQ8MP30TEhx306lp kUnoqxRt3uCYZbLU05IstbQHzc1YVdDcSA09ooZLy9p1yUBlgvkp0i+2jqkmY9EtOZsK V92BBhTjWn27BK7cQH0jZe5LA/xXTQKPvWq7DYnZpdOxNilKqe4K0WKN57zPbvDbsuz8 Xk1dP5SApJHScymHt5ZVUleH791KvjREAm5IsclDOUNwED+WtqIW9gerdNwno1TjsEkm Wgwg== X-Gm-Message-State: APjAAAUC8lbc4o98QNuAMece3dqCgemgY3sqx0agDeS5mnOVeOn70X3I PhHf3oY52PH47lsMmtIWFHQbtQ== X-Google-Smtp-Source: APXvYqw8Z4Du11Noj0rJNBAruiDoW3vfFGs7bdrPKqs3+PLN/qL8xRDc8i0m9PFgrYISl/EdHOHFAA== X-Received: by 2002:a17:902:6ac3:: with SMTP id i3mr30433090plt.111.1579157085077; Wed, 15 Jan 2020 22:44:45 -0800 (PST) Received: from google.com ([2620:15c:202:201:49ea:b78f:4f04:4d25]) by smtp.googlemail.com with ESMTPSA id o2sm1935296pjo.26.2020.01.15.22.44.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jan 2020 22:44:44 -0800 (PST) Date: Wed, 15 Jan 2020 22:44:40 -0800 From: Zubin Mithra To: Greg KH Cc: stable@vger.kernel.org, groeck@chromium.org, christian.koenig@amd.com, michel.daenzer@amd.com, Jerry.Zhang@amd.com, ray.huang@amd.com, alexander.deucher@amd.com Subject: Re: ac1e516d5a4c ("drm/ttm: fix start page for huge page check in ttm_put_pages()") Message-ID: <20200116064439.GA62849@google.com> References: <20200116035501.GA39586@google.com> <20200116062954.GA1172661@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20200116062954.GA1172661@kroah.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Thu, Jan 16, 2020 at 07:29:54AM +0100, Greg KH wrote: > On Wed, Jan 15, 2020 at 07:55:02PM -0800, Zubin Mithra wrote: > > Hello, > > > > The patch : > > a66477b0efe5 ("drm/ttm: fix out-of-bounds read in ttm_put_pages() v2") > > > > has been applied to linux-4.19.y. However, 2 follow-up fixes have not been applied. > > How did you figure out that they were "follow-up" fixes? CVE-2019-19927 references commits a66477b0efe5, ac1e516d5a4c and 453393369dc9. The patch author(Christian König) confirmed that if the patches were being backported, then all three of them need to be. Thanks, - Zubin > > > > > Could the following two fixes be applied to linux-4.19.y? These commits are present > > in linux-5.4.y. These patches do not have to be applied to linux-4.14.y. > > > > ac1e516d5a4c ("drm/ttm: fix start page for huge page check in ttm_put_pages()") > > 453393369dc9 ("drm/ttm: fix incrementing the page pointer for huge pages") > > Both now queued up, thanks for letting me know. > > greg k-h