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 8BDC4C2D0FA for ; Tue, 12 May 2020 22:00:40 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id DF5CA206B7 for ; Tue, 12 May 2020 22:00:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Z/kjEVE7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF5CA206B7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-18773-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 7474 invoked by uid 550); 12 May 2020 22:00:33 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 7453 invoked from network); 12 May 2020 22:00:32 -0000 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=NuUmaQyeiI6S0r1ZpFaCcH0iAIMxK434lKOuYguvARmFCLcoVns+xBoYtdUxVYGnnO KZ6qag5aLSX8FhJjJC2oMlgWMPBP2hPOnHPKGAXf282aEomC4XzS5Ei3wIOGEOaTfTpZ /F13br/+F979VStTrTRzWP8tt/1bjMvikkxI4QdNIfdwjTVyNiKCDIKZa0jp7wIxpFMZ d2wWhej3tg3PQrrxAUxhjAQTrhlqx0LUqC/GB2cvF8syW14b2YcSkNvZtAZWApNZDReP hemEAPhHmEkagoF+kmlk2W6Q2YcUpWrDwoiWONDEInwGc5mPkDCoH6M1dq91eRR73FF0 f+tw== X-Gm-Message-State: AGi0PuY4VePeJvJSo2GfhDxhDfQGgcb8hp/Ms5pFNNhvnRfwkZ9fwh6Q kzEP1nKYr+zzbBjNuDIP7ouUTg== 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) 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> 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