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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 1AD11C433E0 for ; Thu, 21 May 2020 15:16:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EBF1B20826 for ; Thu, 21 May 2020 15:16:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Stn4UqJd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729899AbgEUPQ3 (ORCPT ); Thu, 21 May 2020 11:16:29 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:43650 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729897AbgEUPQ2 (ORCPT ); Thu, 21 May 2020 11:16:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590074187; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=1jYcpHnQL3yWssjgDciSJYss0+WKenYias59GqFdGbA=; b=Stn4UqJdHl/kI/Wr6YPLmZ6LPRB6CEft2U7vd56KAhKrl7LlHXiIy9/ycLOEj9YpZK83TI 7O4YQbwIsfnTBT7X2PmLTPctewzFJr1rDkS8nbBMwPNXMZKN2RnPQ6VQVHCWTrmbLiTHhl z+y/MqATCn7XWptLIvnMyI8YuC3f+fI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-12-QcU_r6aePH625lEdCeW_7g-1; Thu, 21 May 2020 11:16:21 -0400 X-MC-Unique: QcU_r6aePH625lEdCeW_7g-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B2AB3100D0DB; Thu, 21 May 2020 15:16:17 +0000 (UTC) Received: from treble (ovpn-112-59.rdu2.redhat.com [10.10.112.59]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0F010106A7B7; Thu, 21 May 2020 15:15:58 +0000 (UTC) Date: Thu, 21 May 2020 10:15:56 -0500 From: Josh Poimboeuf To: Yu-cheng Yu Cc: 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 Subject: Re: [PATCH v10 00/26] Control-flow Enforcement: Shadow Stack Message-ID: <20200521151556.pojijpmuc2rdd7ko@treble> References: <20200429220732.31602-1-yu-cheng.yu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200429220732.31602-1-yu-cheng.yu@intel.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Wed, Apr 29, 2020 at 03:07:06PM -0700, Yu-cheng Yu wrote: > Control-flow Enforcement (CET) is a new Intel processor feature that blocks > return/jump-oriented programming attacks. Details can be found in "Intel > 64 and IA-32 Architectures Software Developer's Manual" [1]. > > This series depends on the XSAVES supervisor state series that was split > out and submitted earlier [2]. > > I have gone through previous comments, and hope all concerns have been > resolved now. Please inform me if anything is overlooked. > > Changes in v10: Hi Yu-cheng, Do you have a git branch with the latest Shadow Stack and IBT branches applied? I tried to apply IBT v9 on top of this, but I guess the SS code has changed since then and it didn't apply cleanly. -- Josh