From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (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 60DD27B for ; Fri, 15 Apr 2022 17:34:00 +0000 (UTC) Received: by mail-pj1-f48.google.com with SMTP id md4so8089109pjb.4 for ; Fri, 15 Apr 2022 10:34:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=Cj4lHoJbdVe7/yfpNvTK/X4gKN0yimHzFNu70ixPoFc=; b=bQ9Uoq6f8ua+HQMVChR2hvHq9zh8N2X02Qsfy6gnUjzbOW0BA5UUuqextBMPbux0x6 LOllMaVWds3+HMLb7Njk5gRa3V59cOgxRtCYiPPwq9aU5piIU38CeW9cTiMt81t+h2+Q s1tGV4SSdieISroNVa6qnTONweMP4/miOMFfA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=Cj4lHoJbdVe7/yfpNvTK/X4gKN0yimHzFNu70ixPoFc=; b=dDR/Bom22WxIngteHArcv/HBlXev8F9q3su8/uebBQDtIJdFid6J9fj8KDE43t0kC1 pjp+Ht7ib/OP7EhkO2t89r5PZA+1fiim3cgGSeJxh1RCtnYYmLmyR/N4G7vXEzAa4ltw KhSNw5Q+HuIugezz7FbyG4PB+NhGNcZKM/TUOsQwBojCj035yBU1+rGovwGFLTZkHgms aUodl7vArImCS925HXDIGPvgwSrVunV/j1+TIkODGYPYesfXY9kQ9eus/xEtreknQFnw DDLxv2mQdWJmnhc7y3L64agnT1cA++Q04CmxI5UtiUfFgVJM3x15nswLs8hazBbi0usi jdqQ== X-Gm-Message-State: AOAM531sodeIUK9FoZnWNTtT86yYespaLJuMSUiItxdWZxEoTiZ3JWkK NnXvIFX6XtNx+95XiERsg12nWQ== X-Google-Smtp-Source: ABdhPJwGOIhdA72t4m1dL+juRKEBgpxoxbvjv/BaxNXuLioe9WQxNbkB2mNutNprB9Fue+CuZ/dZsQ== X-Received: by 2002:a17:903:2052:b0:158:c6aa:b96 with SMTP id q18-20020a170903205200b00158c6aa0b96mr206943pla.140.1650044039760; Fri, 15 Apr 2022 10:33:59 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id d16-20020a056a00245000b004f771b48736sm3571711pfj.194.2022.04.15.10.33.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Apr 2022 10:33:59 -0700 (PDT) Date: Fri, 15 Apr 2022 10:33:58 -0700 From: Kees Cook To: Nick Desaulniers Cc: Qing Zhao , Bill Wendling , "Moreira, Joao" , clang-built-linux , LKML , "Jose E. Marchesi" Subject: Re: toolchain mitigations plumbers session Message-ID: <202204151024.DFDBF9DD6@keescook> References: <3DE35A81-1FC6-4EC7-8F3A-B395B576644D@oracle.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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Fri, Apr 15, 2022 at 10:17:46AM -0700, Nick Desaulniers wrote: > On Fri, Apr 15, 2022 at 7:50 AM Qing Zhao wrote: > > > > Hi, Nick, > > > > > On Apr 14, 2022, at 4:30 PM, Nick Desaulniers wrote: > > > > > > Hi Qing, Kees, and Bill, > > > Jose and I are currently in the planning process to put together a > > > Kernel+Toolchain microconference track at Linux Plumbers Conference > > > this year (Sept 12-14) in Dublin, Ireland. > > > > > > Would you all be interested in leading another session on > > > kernel+toolchain collaboration for mitigations? Do you plan to attend > > > plumbers this year which will be in person? > > > > I’d love to attend plumbers this year to meet people in person! > > But not sure whether there will be enough new, big stuff to report this year since mostly bunch of bug fixes and minor > > Improvements to the previous work. > > No worries; it doesn't need to be a presentation, or just one person > presenting. I think a quick review of newly developed features from > various authors, then a discussion with consumers (kernel developers) > would be beneficial. Yeah, this kind of overview is what I've been doing the last few years (with Qing last year): https://outflux.net/slides/2021/lpc/compiler-security-features.pdf https://outflux.net/slides/2020/lpc/gcc-and-clang-security-feature-parity.pdf https://outflux.net/slides/2019/lpc/gcc-and-clang.pdf -- Kees Cook