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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 90565C433F2 for ; Fri, 24 Jul 2020 19:03:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6FE35206D8 for ; Fri, 24 Jul 2020 19:03:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="U21XHuTN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726783AbgGXTDy (ORCPT ); Fri, 24 Jul 2020 15:03:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726503AbgGXTDx (ORCPT ); Fri, 24 Jul 2020 15:03:53 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B66FC0619E7 for ; Fri, 24 Jul 2020 12:03:53 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id l63so5821884pge.12 for ; Fri, 24 Jul 2020 12:03:53 -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=sdXgEvqGYHlymvqSceJ6jkKcKZE63vnTThrEFoJfoJI=; b=U21XHuTNZcd9Xi31/xCf87Rkodq7UIatsvvV/UwKN/JzlFCu0PB6GXerCOvF6wBSK+ SC2WOUDhPlu1q875fotSfx1rUNIyJCPwLsBy0JiUGot5W6Q50r/BPrfciAdVtp7Uwlle rtPo4Tole4s/1hOtfMBeGT54AFN8aogMq5g4g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=sdXgEvqGYHlymvqSceJ6jkKcKZE63vnTThrEFoJfoJI=; b=FsUPBiYYEwY7EsF/kkUGHya41XIYNFWQVY8eGv6jIeIT0GSRurTkBgwJ20LNVYE6Gs 2szC4VPvgKqmDGrRqX6l/fxdUprZuKSxmW26Q1QGAGwgddpHPJg+P8DNcabi0xUdge9r tbMecdqqyZXmXS1VrplmqEj+bqmznuZ3kncVqNPtbqBz0ZE00sStAuA/3bbA+zx8EyvI GvZGEgvvL2zOdb9VX4rpPm4gH/mow251MXXZDri89jJBjKrGe7tKNAVXTPeYMOpBTgKL pOVhrX0ZNriYxHjDcHxlFinagXLDO9Ppmsatcfi2YQQvU6jtjOGUnNddAjO63q0PmJCa eXeg== X-Gm-Message-State: AOAM531BN4hdAn0XroIKgTbkjZLWbemk0Ww+ibM7IC8ekGDIdQMi4NU1 Wk+8VK7xH0tFpe2Py7+FYNJaEQ== X-Google-Smtp-Source: ABdhPJxz4vuqoUWyBigx8RahhArmNJ84Nut7BOOCsUQANkvjswnwvqIw0Juf0zWwzmKl2+qs8JH6nQ== X-Received: by 2002:a63:140f:: with SMTP id u15mr9259752pgl.94.1595617432993; Fri, 24 Jul 2020 12:03:52 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id 66sm7436424pfa.92.2020.07.24.12.03.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 12:03:52 -0700 (PDT) Date: Fri, 24 Jul 2020 12:03:51 -0700 From: Kees Cook To: =?iso-8859-1?Q?Micka=EBl_Sala=FCn?= Cc: linux-kernel@vger.kernel.org, Aleksa Sarai , Alexei Starovoitov , Al Viro , Andrew Morton , Andy Lutomirski , Christian Brauner , Christian Heimes , Daniel Borkmann , Deven Bowers , Dmitry Vyukov , Eric Biggers , Eric Chiang , Florian Weimer , James Morris , Jan Kara , Jann Horn , Jonathan Corbet , Lakshmi Ramasubramanian , Matthew Garrett , Matthew Wilcox , Michael Kerrisk , Mimi Zohar , Philippe =?iso-8859-1?Q?Tr=E9buchet?= , Scott Shell , Sean Christopherson , Shuah Khan , Steve Dower , Steve Grubb , Tetsuo Handa , Thibaut Sautereau , Vincent Strubel , kernel-hardening@lists.openwall.com, linux-api@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-fsdevel@vger.kernel.org, Thibaut Sautereau Subject: Re: [PATCH v7 6/7] selftest/openat2: Add tests for O_MAYEXEC enforcing Message-ID: <202007241203.E4A515733@keescook> References: <20200723171227.446711-1-mic@digikod.net> <20200723171227.446711-7-mic@digikod.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20200723171227.446711-7-mic@digikod.net> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 23, 2020 at 07:12:26PM +0200, Mickaël Salaün wrote: > Test propagation of noexec mount points or file executability through > files open with or without O_MAYEXEC, thanks to the > fs.open_mayexec_enforce sysctl. > > Signed-off-by: Mickaël Salaün Reviewed-by: Kees Cook -- Kees Cook