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 63176C433DB for ; Tue, 16 Mar 2021 15:18:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B9C4650DB for ; Tue, 16 Mar 2021 15:18:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232335AbhCPPRq (ORCPT ); Tue, 16 Mar 2021 11:17:46 -0400 Received: from mga05.intel.com ([192.55.52.43]:18965 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236013AbhCPPRI (ORCPT ); Tue, 16 Mar 2021 11:17:08 -0400 IronPort-SDR: wJqnzQQa2YAknybRRxZEYsKhfAInLgoSJTSj+Te9nDpQUquI2ndiZjs/i3CIK+Su9Uw3d6fkaS woJb2EGVzLyg== X-IronPort-AV: E=McAfee;i="6000,8403,9924"; a="274320146" X-IronPort-AV: E=Sophos;i="5.81,251,1610438400"; d="scan'208";a="274320146" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2021 08:13:26 -0700 IronPort-SDR: IqQnowSIiUmzhkvbINxygMGAqof4v93N73/CesmNU6qqg4NirfR9vG9rAfoSRL413pkv+rNROU C4+e+pVwZZzQ== X-IronPort-AV: E=Sophos;i="5.81,251,1610438400"; d="scan'208";a="449748967" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2021 08:13:25 -0700 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 , Haitao Huang Cc: Yu-cheng Yu Subject: [PATCH v23 0/9] Control-flow Enforcement: Indirect Branch Tracking Date: Tue, 16 Mar 2021 08:13:10 -0700 Message-Id: <20210316151320.6123-1-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 v23: - Add patch #6: introduce a macro for ENDBR instructions. - Patch #7: replace endbr32 with ENDBR macro. - Patch #9: revise, add/replace endbr64 with ENDBR macro. - Rebase to Linus tree v5.12-rc3. [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 v22: https://lore.kernel.org/r/20210310220519.16811-1-yu-cheng.yu@intel.com/ H.J. Lu (3): x86/cet/ibt: Update arch_prctl functions for Indirect Branch Tracking x86/vdso/32: Add ENDBR to __kernel_vsyscall entry point x86/vdso: Insert endbr32/endbr64 to vDSO Yu-cheng Yu (6): 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 x86/entry: Introduce ENDBR macro x86/vdso: Add ENDBR to __vdso_sgx_enter_enclave arch/x86/Kconfig | 1 + arch/x86/entry/calling.h | 18 ++++++++ arch/x86/entry/vdso/Makefile | 4 ++ arch/x86/entry/vdso/vdso32/system_call.S | 2 + arch/x86/entry/vdso/vsgx.S | 4 ++ arch/x86/include/asm/cet.h | 3 ++ arch/x86/kernel/cet.c | 59 +++++++++++++++++++++++- arch/x86/kernel/cet_prctl.c | 5 ++ arch/x86/kernel/fpu/signal.c | 8 ++-- arch/x86/kernel/process_64.c | 8 ++++ 10 files changed, 107 insertions(+), 5 deletions(-) -- 2.21.0