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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 2C416C433E9 for ; Mon, 4 Jan 2021 20:09:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00AAE224DF for ; Mon, 4 Jan 2021 20:09:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728172AbhADUJK (ORCPT ); Mon, 4 Jan 2021 15:09:10 -0500 Received: from mga11.intel.com ([192.55.52.93]:35243 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725840AbhADUJK (ORCPT ); Mon, 4 Jan 2021 15:09:10 -0500 IronPort-SDR: s5K+C27vyajcSgtzMVnYrTLDOOpnV7CQ717Anbodlk4hEBc58Jr90+l/mVWCNKMVWVq+xu0vZ2 i68jNCNbwLcw== X-IronPort-AV: E=McAfee;i="6000,8403,9854"; a="173494318" X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="173494318" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 12:08:29 -0800 IronPort-SDR: urpI8d5B4JN9RjNmAOAUe5lL7HXhD3ElEk+4b7L539xEbw5mo/rkDiYv+M0N4sNtH00csg4QQ/ mzFVpqGchYdw== X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="360892786" Received: from yyu32-mobl1.amr.corp.intel.com (HELO [10.209.103.116]) ([10.209.103.116]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 12:08:28 -0800 Subject: Re: [PATCH v17 00/26] Control-flow Enforcement: Shadow Stack To: x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang , Pengfei Xu , x86-patch-review@intel.com, "Schlobohm, Bruce" References: <20201229213053.16395-1-yu-cheng.yu@intel.com> From: "Yu, Yu-cheng" Message-ID: <0a475c4c-58b0-0da7-8889-a0dbbc7d0fdc@intel.com> Date: Mon, 4 Jan 2021 12:08:27 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20201229213053.16395-1-yu-cheng.yu@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/29/2020 1:30 PM, Yu-cheng Yu wrote: > Control-flow Enforcement (CET) is a new Intel processor feature that blocks > return/jump-oriented programming attacks. Details are in "Intel 64 and > IA-32 Architectures Software Developer's Manual" [1]. > > CET can protect applications and the kernel. This series enables only > application-level protection, and has three parts: > > - Shadow stack [2], > - Indirect branch tracking [3], and > - Selftests [4]. > > I have run tests on these patches for quite some time, and they have been > very stable. Linux distributions with CET are available now, and Intel > processors with CET are already on the market. It would be nice if CET > support can be accepted into the kernel. I will be working to address any > issues should they come up. > > Changes in v17: > - Rebase to v5.11-rc1. Hi Reviewers, After a few revisions/re-bases, I have dropped some Reviewed-by tags. This revision is only a re-base to the latest Linus tree. Please kindly comment if there are anything still not resolved, and I appreciate very much Reviewed-by/Acked-by tags to satisfactory patches. -- Thanks, Yu-cheng