From patchwork Tue Aug 25 00:26:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu-cheng Yu X-Patchwork-Id: 11734561 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 58A2F739 for ; Tue, 25 Aug 2020 00:30:37 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 269F52065F for ; Tue, 25 Aug 2020 00:30:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 269F52065F 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 DF03B90000E; Mon, 24 Aug 2020 20:30:35 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id D7ACE90000D; Mon, 24 Aug 2020 20:30:35 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C1B8090000E; Mon, 24 Aug 2020 20:30:35 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0163.hostedemail.com [216.40.44.163]) by kanga.kvack.org (Postfix) with ESMTP id A7E9990000D for ; Mon, 24 Aug 2020 20:30:35 -0400 (EDT) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 7497F8248047 for ; Tue, 25 Aug 2020 00:30:35 +0000 (UTC) X-FDA: 77187210030.17.bean90_1b17eca27057 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin17.hostedemail.com (Postfix) with ESMTP id 4CB09180D0181 for ; Tue, 25 Aug 2020 00:30:35 +0000 (UTC) X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,yu-cheng.yu@intel.com,,RULES_HIT:30054:30055:30056:30064:30070:30074,0,RBL:134.134.136.20:@intel.com:.lbl8.mailshell.net-64.95.201.95 62.50.0.100;04y8e1695b5gpn5hnqcpzyeukij61ycbz3tzgmtz8m8f9utp8xotce5i4diuyb9.5uqt6qne5sop7kahxnbb56ycwqg4ijeq5nfrh9z6sqdrtx46kku3cur4btuxqij.r-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:ft,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:23,LUA_SUMMARY:none X-HE-Tag: bean90_1b17eca27057 X-Filterd-Recvd-Size: 4938 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Tue, 25 Aug 2020 00:30:34 +0000 (UTC) IronPort-SDR: Jky2qsNO47hXweBgBh+XB5Bspe3sg+xGc5W4hzzaXIUHBrKyxBxX+YxJ5o9MOg+Ec4BoQc5hzw pn8o9zVvmyOA== X-IronPort-AV: E=McAfee;i="6000,8403,9723"; a="143794744" X-IronPort-AV: E=Sophos;i="5.76,350,1592895600"; d="scan'208";a="143794744" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2020 17:30:33 -0700 IronPort-SDR: 67oZwxQgYdJmA+KUqL3mx/insEcOmQz8+Fw2zgB45hu4tE5sq6WVUE5kNs/tmLEdpDBb/61GGS r3onGRfXEP3g== X-IronPort-AV: E=Sophos;i="5.76,350,1592895600"; d="scan'208";a="443429289" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2020 17:30:32 -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 Cc: Yu-cheng Yu Subject: [PATCH v11 0/9] Control-flow Enforcement: Indirect Branch Tracking, PTRACE Date: Mon, 24 Aug 2020 17:26:35 -0700 Message-Id: <20200825002645.3658-1-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-Rspamd-Queue-Id: 4CB09180D0181 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 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 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 from v9: - Remove the legacy bitmap arch_prctl() as it is not used by GLIBC anymore. Should it be needed in the future, I will re-post the patch separately. [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] Previous IBT patches v9: https://lkml.kernel.org/r/20200205182308.4028-1-yu-cheng.yu@intel.com/ There have been no major changes since v9, and there is no IBT patches v10. H.J. Lu (4): 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 x86: Disallow vsyscall emulation when CET is enabled 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/cet: Add PTRACE interface for CET arch/x86/Kconfig | 26 +++++++- arch/x86/entry/vdso/Makefile | 4 ++ arch/x86/entry/vdso/vdso32/system_call.S | 3 + arch/x86/include/asm/cet.h | 3 + arch/x86/include/asm/disabled-features.h | 8 ++- arch/x86/include/asm/fpu/regset.h | 7 ++- arch/x86/kernel/cet.c | 60 ++++++++++++++++++- arch/x86/kernel/cet_prctl.c | 8 ++- arch/x86/kernel/cpu/common.c | 17 ++++++ arch/x86/kernel/fpu/regset.c | 44 ++++++++++++++ arch/x86/kernel/fpu/signal.c | 8 ++- arch/x86/kernel/process_64.c | 8 +++ arch/x86/kernel/ptrace.c | 16 +++++ include/uapi/linux/elf.h | 1 + .../arch/x86/include/asm/disabled-features.h | 8 ++- 15 files changed, 208 insertions(+), 13 deletions(-)