From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD94E19BD9 for ; Wed, 21 Jun 2023 21:54:19 +0000 (UTC) Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-1b5422163f4so42225555ad.2 for ; Wed, 21 Jun 2023 14:54:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1687384459; x=1689976459; 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=DBUEVo1q7n30FsHvjVeF7u+PkYrRTPaQ7gRodIMSGHc=; b=g0lMw2Rz4vHh0LSVgW2evkSBz+6/980KZyjZCsSI0elex38mMOmUGcG6hJIiOfkjOa hh9nR9eDwEO3P9OIJboZkfv2xpsj/GYudHRuxRO2OZ4Gse0PeeiSZgwxjlJpooJyIBmZ sdaEEBVfiOw3VSNlfZehux7NzQbiE9ZT91y68= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687384459; x=1689976459; 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=DBUEVo1q7n30FsHvjVeF7u+PkYrRTPaQ7gRodIMSGHc=; b=GeNLawseu3emWB15ibnSTUGcohscd+8OYsJMykHK1CujCZxSMD0ZP1aMp7MJbb1NNg ERCNJxNUZ6gm0RJXSw0IPZ+P8skTQDW7AyluJtckvdkXU3KlStXM2SMmHkshHhYl/vJD G4OxnHBhKwAB1rjMW0YnLtgxw2qje5TY+OvmnVPlXdZF4wf4lQ1fMEIvlAMasiuEp9/m iqPDQr+sqejY/AFkjUC21m9yvq0LCyn1l5OIWnF8/DQ15POuAIyrsBbSZ6ELaADOOnpl 9ONcDbTmFIl4XXWei/u7GSljz4rA4uxfWn1sph6WF9+sP4zBBAuH+UeLM0c5a9NH27vf r+yA== X-Gm-Message-State: AC+VfDxBI3/d2VpQWiQ75EdPk6Ukoqvauj+PbriVpVgLuvNJlrWpUJB/ zkh/k/KmFSRDmdaV/r4TGDYeeA== X-Google-Smtp-Source: ACHHUZ7sSNSEdyXfVFVbwQZyuo/RmgZQEi8YADL8wI+y2YjTTaLRDJ6GJgpQ9q7lMzepkoUPJatsYg== X-Received: by 2002:a17:902:8c94:b0:1b1:a9e7:5d4b with SMTP id t20-20020a1709028c9400b001b1a9e75d4bmr15712370plo.22.1687384459016; Wed, 21 Jun 2023 14:54:19 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id i10-20020a17090332ca00b001b6758a2d94sm3903265plr.305.2023.06.21.14.54.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jun 2023 14:54:18 -0700 (PDT) Date: Wed, 21 Jun 2023 14:54:17 -0700 From: Kees Cook To: Dan Li Cc: Qing Zhao , gcc-patches@gcc.gnu.org, Richard Sandiford , Masahiro Yamada , Michal Marek , Nick Desaulniers , Catalin Marinas , Will Deacon , Sami Tolvanen , Nathan Chancellor , Tom Rix , Peter Zijlstra , "Paul E. McKenney" , Mark Rutland , Josh Poimboeuf , Frederic Weisbecker , "Eric W. Biederman" , Marco Elver , Christophe Leroy , Song Liu , Andrew Morton , Uros Bizjak , Kumar Kartikeya Dwivedi , Juergen Gross , Luis Chamberlain , Borislav Petkov , Masami Hiramatsu , Dmitry Torokhov , Aaron Tomlin , Kalesh Singh , Yuntao Wang , Changbin Du , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: Re: [RFC/RFT,V2 0/3] Add compiler support for Kernel Control Flow Integrity Message-ID: <202306211451.CB0A34563@keescook> References: <20221219055431.22596-1-ashimida.1990@gmail.com> <20230325081117.93245-1-ashimida.1990@gmail.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230325081117.93245-1-ashimida.1990@gmail.com> On Sat, Mar 25, 2023 at 01:11:14AM -0700, Dan Li wrote: > This series of patches is mainly used to support the control flow > integrity protection of the linux kernel [1], which is similar to > -fsanitize=kcfi in clang 16.0 [2,3]. > > Any suggestion please let me know :). Hi Dan, It's been a couple months, and I didn't see any other feedback on this proposal. I was curious what the status of this work is. Are you able to attend GNU Cauldron[1] this year? I'd love to see this get some traction in GCC. Thanks! -Kees [1] https://gcc.gnu.org/wiki/cauldron2023 -- Kees Cook