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=-4.0 required=3.0 tests=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 1A54CC2D0F8 for ; Tue, 12 May 2020 22:00:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EAD5320747 for ; Tue, 12 May 2020 22:00:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Z/kjEVE7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731492AbgELWAW (ORCPT ); Tue, 12 May 2020 18:00:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51940 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728313AbgELWAV (ORCPT ); Tue, 12 May 2020 18:00:21 -0400 Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FB09C061A0C for ; Tue, 12 May 2020 15:00:21 -0700 (PDT) Received: by mail-pl1-x643.google.com with SMTP id b8so5982058plm.11 for ; Tue, 12 May 2020 15:00:21 -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=+79i6CNjIBAM9t+ay0r61vFhVwB4nVo6+b6hHSQ4Fro=; b=Z/kjEVE7ijoWI2BF5GmEwAS2TVMlcwmQ3piX8x8xKGksNXYU58li/dNrs7QXxUoz7v WcPUKAYo4D+A3Vjcp2GxS4KQ9NMekKqFlUGG2RHxbDNQhoqZoY/xpwrNADyPpkJA3XMs ldEER+nN+tYegKNCyBNg4B35WbSpqTnd27sU0= 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=+79i6CNjIBAM9t+ay0r61vFhVwB4nVo6+b6hHSQ4Fro=; b=nTypM/v14XvnlZkdNwcYlrA7jq+KXpTsUugqG+So6mcUHU8FJR7TUZAUFwny6U912a itX9hUNcKrPouzBjh6TwZnepZqbEVUI0HQNFuACaKEa4g/kiZ7Cc5AdLsXwBkYiNSV6y +bYKrZ0kNiv2tpGsYDIBcBdb5p/ZekOWGaGFTic2wfLbwdqL4oVr/jzKG6zfXDCyGf0G 2Kxh1Kc8uL4IEQ+qHEpbFiIhveHYBzUvb754o3OZqiP7plN91QzLz0v3Q/MsivrWY97U UcUUPsFzkgvabkOFSOVqK0dP2fpPyeXno2vOCXW0bUATQKyWQ61LqubJrZZbQPtAOXFV xUwA== X-Gm-Message-State: AGi0PubjnnCNku2rDwhEpiBojJyxup3S5+kP5SANPNOQ1lQu3Dthatnv jV3s9jXl1qDH94sfpvn+fx1ACQ== X-Google-Smtp-Source: APiQypKLh7L5M6Z91bm0o0e2Xo3kz9JFIjZHGl9tokP3YDbmJ9kq2VCMFUVZ8H/2dEcftnriFb6DmQ== X-Received: by 2002:a17:90a:6343:: with SMTP id v3mr31509425pjs.127.1589320820943; Tue, 12 May 2020 15:00:20 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id j2sm13193542pfb.73.2020.05.12.15.00.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 May 2020 15:00:20 -0700 (PDT) Date: Tue, 12 May 2020 15:00:19 -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 , Andy Lutomirski , Christian Heimes , Daniel Borkmann , Deven Bowers , Eric Chiang , Florian Weimer , James Morris , Jan Kara , Jann Horn , Jonathan Corbet , Lakshmi Ramasubramanian , Matthew Garrett , Matthew Wilcox , Michael Kerrisk , =?iso-8859-1?Q?Micka=EBl_Sala=FCn?= , Mimi Zohar , Philippe =?iso-8859-1?Q?Tr=E9buchet?= , Scott Shell , Sean Christopherson , Shuah Khan , Steve Dower , Steve Grubb , 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 Subject: Re: [PATCH v5 5/6] doc: Add documentation for the fs.open_mayexec_enforce sysctl Message-ID: <202005121459.158C3AE75@keescook> References: <20200505153156.925111-1-mic@digikod.net> <20200505153156.925111-6-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: <20200505153156.925111-6-mic@digikod.net> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 05, 2020 at 05:31:55PM +0200, Mickaël Salaün wrote: > This sysctl enables to propagate executable permission to userspace > thanks to the O_MAYEXEC flag. > > Signed-off-by: Mickaël Salaün > Reviewed-by: Thibaut Sautereau > Cc: Aleksa Sarai > Cc: Al Viro > Cc: Jonathan Corbet > Cc: Kees Cook I think this should be folded into the patch that adds the sysctl. -- Kees Cook