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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 68EA3C4363D for ; Fri, 25 Sep 2020 14:58:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F1B8B20715 for ; Fri, 25 Sep 2020 14:58:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1B8B20715 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 593596B009D; Fri, 25 Sep 2020 10:58:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 549348E0001; Fri, 25 Sep 2020 10:58:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4593B6B009F; Fri, 25 Sep 2020 10:58:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0002.hostedemail.com [216.40.44.2]) by kanga.kvack.org (Postfix) with ESMTP id 301746B009D for ; Fri, 25 Sep 2020 10:58:16 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id F2A64181AE860 for ; Fri, 25 Sep 2020 14:58:15 +0000 (UTC) X-FDA: 77301889392.05.girls16_400caa727168 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin05.hostedemail.com (Postfix) with ESMTP id CB71C18033D25 for ; Fri, 25 Sep 2020 14:58:15 +0000 (UTC) X-HE-Tag: girls16_400caa727168 X-Filterd-Recvd-Size: 4958 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Fri, 25 Sep 2020 14:58:14 +0000 (UTC) IronPort-SDR: J4BlElNY5I4xSqYFRu79rYAa7d9QPr3GIRlLYY94Twe4z2o4+gAKt95G/j3bAP10TZ4QjUXbzz zROGahhsi7IQ== X-IronPort-AV: E=McAfee;i="6000,8403,9755"; a="225704472" X-IronPort-AV: E=Sophos;i="5.77,302,1596524400"; d="scan'208";a="225704472" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 07:58:13 -0700 IronPort-SDR: URjgH0tF0D7TmKiW7s0Aj70ANXXmQDg/X2UeRBd2M/oHM/QpX6i8r0ifdPafqs1Tv4Binh7PPH jxdvhJJ53usw== X-IronPort-AV: E=Sophos;i="5.77,302,1596524400"; d="scan'208";a="512916953" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 07:58:13 -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 Cc: Yu-cheng Yu Subject: [PATCH v13 0/8] Control-flow Enforcement: Indirect Branch Tracking Date: Fri, 25 Sep 2020 07:57:56 -0700 Message-Id: <20200925145804.5821-1-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Control-flow Enforcement (CET) is a new Intel processor feature that bloc= ks 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 v13: - Drop the patch that disables vsyscall emulation when CET is enabled, an= d re-introduce an earlier patch that fixes shadow stack and IBT for the emulation code. - Remove "INTEL" string from CET Kconfig options, update help text, and change IBT default configuration to N. [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 v12. https://lkml.kernel.org/r/20200918192312.25978-1-yu-cheng.yu@intel.co= m/ 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 (5): x86/cet/ibt: Add Kconfig option 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: ELF header parsing for Indirect Branch Tracking x86/vsyscall/64: Fixup Shadow Stack and Indirect Branch Tracking for vsyscall emulation arch/x86/Kconfig | 21 +++++++ arch/x86/entry/vdso/Makefile | 4 ++ arch/x86/entry/vdso/vdso32/system_call.S | 3 + arch/x86/entry/vsyscall/vsyscall_64.c | 34 +++++++++++ arch/x86/entry/vsyscall/vsyscall_emu_64.S | 9 +++ arch/x86/entry/vsyscall/vsyscall_trace.h | 1 + arch/x86/include/asm/cet.h | 3 + arch/x86/include/asm/disabled-features.h | 8 ++- arch/x86/kernel/cet.c | 60 ++++++++++++++++++- arch/x86/kernel/cet_prctl.c | 8 ++- arch/x86/kernel/cpu/common.c | 17 ++++++ arch/x86/kernel/fpu/signal.c | 8 ++- arch/x86/kernel/process_64.c | 8 +++ .../arch/x86/include/asm/disabled-features.h | 8 ++- 14 files changed, 184 insertions(+), 8 deletions(-) --=20 2.21.0