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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 7170BC43381 for ; Tue, 29 Dec 2020 21:36:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43FD922225 for ; Tue, 29 Dec 2020 21:36:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727188AbgL2VfD (ORCPT ); Tue, 29 Dec 2020 16:35:03 -0500 Received: from mga09.intel.com ([134.134.136.24]:31875 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726795AbgL2VfB (ORCPT ); Tue, 29 Dec 2020 16:35:01 -0500 IronPort-SDR: v1SHsvWPEX3BrfQIpRgNkGF/6dDpEck5Hd5+ZWsgIV+SPZIEqwq9YU0wp9Xjb3VD2ngC0x/bL2 K/HeuIE8b6tw== X-IronPort-AV: E=McAfee;i="6000,8403,9849"; a="176695619" X-IronPort-AV: E=Sophos;i="5.78,459,1599548400"; d="scan'208";a="176695619" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Dec 2020 13:34:18 -0800 IronPort-SDR: iHnimHIRiOOPbycyvFdOs88BLkuqL7O7LJtzt8MV31+GGJ0TkcgWdnfCedxwIMmU/0+EYt2odk DuYKpPTbGEwg== X-IronPort-AV: E=Sophos;i="5.78,459,1599548400"; d="scan'208";a="376190113" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Dec 2020 13:34:17 -0800 From: Yu-cheng Yu 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 Cc: Yu-cheng Yu Subject: [PATCH v17 0/7] Control-flow Enforcement: Indirect Branch Tracking Date: Tue, 29 Dec 2020 13:33:43 -0800 Message-Id: <20201229213350.17010-1-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org 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]. This is the second part of CET and enables Indirect Branch Tracking (IBT). It is built on top of the shadow stack series. Changes in v17: - Rebase to v5.11-rc1. [1] Intel 64 and IA-32 Architectures Software Developer's Manual: https://software.intel.com/en-us/download/intel-64-and-ia-32- architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4 [2] Indirect Branch Tracking patches v16: https://lkml.kernel.org/r/20201209222752.2911-1-yu-cheng.yu@intel.com/ H.J. Lu (3): x86/cet/ibt: Update arch_prctl functions for Indirect Branch Tracking x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point x86/vdso: Insert endbr32/endbr64 to vDSO Yu-cheng Yu (4): x86/cet/ibt: Update Kconfig for user-mode Indirect Branch Tracking x86/cet/ibt: User-mode Indirect Branch Tracking support x86/cet/ibt: Handle signals for Indirect Branch Tracking x86/cet/ibt: Update ELF header parsing for Indirect Branch Tracking arch/x86/Kconfig | 1 + arch/x86/entry/vdso/Makefile | 4 ++ arch/x86/entry/vdso/vdso32/system_call.S | 3 ++ arch/x86/include/asm/cet.h | 3 ++ arch/x86/kernel/cet.c | 60 +++++++++++++++++++++++- arch/x86/kernel/cet_prctl.c | 5 ++ arch/x86/kernel/fpu/signal.c | 8 ++-- arch/x86/kernel/process_64.c | 8 ++++ 8 files changed, 87 insertions(+), 5 deletions(-) -- 2.21.0