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 5F521C4332F for ; Thu, 8 Dec 2022 16:13:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230114AbiLHQNj (ORCPT ); Thu, 8 Dec 2022 11:13:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230007AbiLHQNi (ORCPT ); Thu, 8 Dec 2022 11:13:38 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7AA281D8E for ; Thu, 8 Dec 2022 08:13:36 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id t11-20020a17090a024b00b0021932afece4so5119388pje.5 for ; Thu, 08 Dec 2022 08:13:36 -0800 (PST) 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=VEF5Kdoxdu+cKfk6R3ZwPWFH59dyZr5XNLc+TP4k1ZU=; b=M9dPq43pCEesdG1Pr73JFi78Hptyiq5VZqWgnsSr3kI1jPoUdQ4zxjiAhyNFqpFmZg njyxgcdxqgN0KzGHxmez3cz91qutsMd43bfVz+BmUEiqosyY0DbvL3iHrFX0td8dUCSY MTh3j9pe6XZs6CcLquyZVVbjRBXWFW2xIvWp0= 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=VEF5Kdoxdu+cKfk6R3ZwPWFH59dyZr5XNLc+TP4k1ZU=; b=3/LhpKCPjWmEm2K/YQKvwgEA07pt2lUOL4J+FbwMfRhtYGl3kwVMtJAC+oIe7YFm02 fLF0hODqwV05yOFrE5iIDrVH4LuuMpL9N84myIr/Bdu9+7eqHno8Y4smAT9Kfam6XzOX K+FPwbvgYHgGmDWutj9e3gPMDLn/cNsn3HHAQ8Q9nw23YDG6TuOkX/1+fFYlXmE97dJI JYDhKXxzWjDIVAPDH3vrbTjZyR9jqVr+VqlxtSIt3VDRYFnJqoLD8t6FCPQMlJlc/CKK JDxl0o5CQoeoRsOVEGrg3ygDiiTQJTuAeM+HyCNe11rn7qkH3yVhpUtRbs9xAAyLRGX2 eA5Q== X-Gm-Message-State: ANoB5pk7vfJmPTqB387ebdA6MxfNj4qx0PBm0qvL73W5EXX1cckngBQ2 kEqnW9wCOc6CTILnWFKunCvEvA== X-Google-Smtp-Source: AA0mqf54Uql+4I53tb1lC4yydY21faKQwOpWl2+BYX9Ds95kNuRBabF3SZQkBl8QR9ooQXG7EPr8Eg== X-Received: by 2002:a17:903:22c2:b0:189:c47b:af22 with SMTP id y2-20020a17090322c200b00189c47baf22mr24668561plg.23.1670516016394; Thu, 08 Dec 2022 08:13:36 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id ik25-20020a170902ab1900b001869b988d93sm16661571plb.187.2022.12.08.08.13.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Dec 2022 08:13:35 -0800 (PST) Date: Thu, 8 Dec 2022 08:13:34 -0800 From: Kees Cook To: jeffxu@chromium.org Cc: skhan@linuxfoundation.org, akpm@linux-foundation.org, dmitry.torokhov@gmail.com, dverkamp@chromium.org, hughd@google.com, jeffxu@google.com, jorgelo@chromium.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, jannh@google.com, linux-hardening@vger.kernel.org Subject: Re: [PATCH v6 0/6] mm/memfd: introduce MFD_NOEXEC_SEAL and MFD_EXEC Message-ID: <202212080809.687CC8BC23@keescook> References: <20221207154939.2532830-1-jeffxu@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221207154939.2532830-1-jeffxu@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org On Wed, Dec 07, 2022 at 03:49:33PM +0000, jeffxu@chromium.org wrote: > This is V6 version of patch: see [4] [5] [6] [7] for previous versions. When sending a new version, can you include an overview of what changed between this version and the prior version? This helps reviewers who are following along, so it's easier to focus our attention on the differences. Also, it's helpful to version the links: > [4] https://lwn.net/Articles/890096/ > [5] https://lore.kernel.org/lkml/20220805222126.142525-1-jeffxu@google.com/ > [6] https://lore.kernel.org/lkml/20221202013404.163143-1-jeffxu@google.com/ > [7] https://lore.kernel.org/lkml/20221206152358.1966099-1-jeffxu@google.com/ e.g.: v6: - moved foo to bar - improve comments for baz v5: https://lore.kernel.org/lkml/20221206152358.1966099-1-jeffxu@google.com/ v3: https://lore.kernel.org/lkml/20221202013404.163143-1-jeffxu@google.com/ v2: ...etc -Kees -- Kees Cook