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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 980BFC433FE for ; Thu, 20 Oct 2022 22:57:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229732AbiJTW52 (ORCPT ); Thu, 20 Oct 2022 18:57:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229876AbiJTW5Z (ORCPT ); Thu, 20 Oct 2022 18:57:25 -0400 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5898A22E0D4 for ; Thu, 20 Oct 2022 15:57:23 -0700 (PDT) Received: by mail-pl1-x62f.google.com with SMTP id p6so657245plr.7 for ; Thu, 20 Oct 2022 15:57:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=TMshH9biaVXQs7+fRI1qPbg8/Vmgf41zzdE8Ax9DFYA=; b=UxXF8cbs/icsMsb/bPq8qttNDmiXRbLXaFp21el0sK2dq1lWLpxMZFArsRK0mkWhEU yH4Std6R7RGYgzqSZ9NFNY44SR/8k2wJ6QyM+mBSFV9D+hNdowYlrtXHMJQwwC6UoW6B hzj2LHb7fOguUuRiCYaSJ8vUl7YrNcGUVd+Us= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=TMshH9biaVXQs7+fRI1qPbg8/Vmgf41zzdE8Ax9DFYA=; b=YVZA6twhKYPYT8u1Jy4L9z6Vsq+HtTgkbSFI6Ocz19t+rCjgAv97OYnTcdHMW/dtRh UvrQEyD/ILAyKJk6Sd8obA3nGpDueJJ2er4KpG+6NOnJMI4amZY/hj6W92NGvVrFFwxV UMEEAI23Y1pb5fwQgYn8sn4W3vjjRNxkV50x9MzyoKuf6Z79GmBytopZh0Y32N10Enhv HdVncui3zU/+BgV4hc+hF+wcGRv0BK47g2XAmfLpD1b2atzXTgUlXuirlQKZHBfRO1Ov jzNajG1aFJtX5RctpgDy592fJr08jTCrphRDTOPGZKyvv1gYmaA31nwayOf0hAuv40Cg lU4A== X-Gm-Message-State: ACrzQf2hJAr5quA+pq/NHIjvu0UYveeDrJFChAts5o0RvLQWzV67GwWP WZqhHuL+8GNnaW+6Ov3nUzUxdg== X-Google-Smtp-Source: AMsMyM5lZ4Dia253exhcKwnxHFmBcVrokulHdGNf45q/7BqKwj7LyyrZSMwZCU9ocNupwEMC8xBjeQ== X-Received: by 2002:a17:902:b708:b0:184:3921:df30 with SMTP id d8-20020a170902b70800b001843921df30mr16498236pls.43.1666306642632; Thu, 20 Oct 2022 15:57:22 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id cp15-20020a170902e78f00b00176dc67df44sm3361025plb.132.2022.10.20.15.57.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 15:57:21 -0700 (PDT) Date: Thu, 20 Oct 2022 15:57:21 -0700 From: Kees Cook To: "Edgecombe, Rick P" Cc: "bsingharora@gmail.com" , "hpa@zytor.com" , "Syromiatnikov, Eugene" , "peterz@infradead.org" , "rdunlap@infradead.org" , "Yu, Yu-cheng" , "dave.hansen@linux.intel.com" , "kirill.shutemov@linux.intel.com" , "Eranian, Stephane" , "linux-mm@kvack.org" , "fweimer@redhat.com" , "nadav.amit@gmail.com" , "jannh@google.com" , "dethoma@microsoft.com" , "linux-arch@vger.kernel.org" , "kcc@google.com" , "bp@alien8.de" , "oleg@redhat.com" , "hjl.tools@gmail.com" , "Yang, Weijiang" , "Lutomirski, Andy" , "pavel@ucw.cz" , "arnd@arndb.de" , "Moreira, Joao" , "tglx@linutronix.de" , "mike.kravetz@oracle.com" , "x86@kernel.org" , "linux-doc@vger.kernel.org" , "jamorris@linux.microsoft.com" , "john.allen@amd.com" , "rppt@kernel.org" , "mingo@redhat.com" , "Shankar, Ravi V" , "corbet@lwn.net" , "linux-kernel@vger.kernel.org" , "linux-api@vger.kernel.org" , "gorcunov@gmail.com" Subject: Re: [PATCH v2 27/39] x86/cet/shstk: Handle signals for shadow stack Message-ID: <202210201556.EF52D322@keescook> References: <20220929222936.14584-1-rick.p.edgecombe@intel.com> <20220929222936.14584-28-rick.p.edgecombe@intel.com> <202210031347.6DBE61199@keescook> <56095eac64e95b79ea04e84909d8ba0ab49d9246.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56095eac64e95b79ea04e84909d8ba0ab49d9246.camel@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 20, 2022 at 10:08:17PM +0000, Edgecombe, Rick P wrote: > Kees, sorry for the delayed response. There was so much feedback, I > missed responding to some. No worries! Most of my feedback was just to get help filling gaps in my understanding. :) I appreciate the replies -- I'm looking forward to v3! -- Kees Cook