Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Thu, 10 Sep 2020 19:40:33 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     =?iso-8859-1?Q?Micka=EBl_Sala=FCn?= <mic@digikod.net>
Cc:     Mimi Zohar <zohar@linux.ibm.com>, linux-kernel@vger.kernel.org,
        Aleksa Sarai <cyphar@cyphar.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Andrew Morton <akpm@linux-foundation.org>,
        Andy Lutomirski <luto@kernel.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Casey Schaufler <casey@schaufler-ca.com>,
        Christian Brauner <christian.brauner@ubuntu.com>,
        Christian Heimes <christian@python.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Deven Bowers <deven.desai@linux.microsoft.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Eric Biggers <ebiggers@kernel.org>,
        Eric Chiang <ericchiang@google.com>,
        Florian Weimer <fweimer@redhat.com>,
        James Morris <jmorris@namei.org>, Jan Kara <jack@suse.cz>,
        Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>,
        Kees Cook <keescook@chromium.org>,
        Lakshmi Ramasubramanian <nramas@linux.microsoft.com>,
        Matthew Garrett <mjg59@google.com>,
        Michael Kerrisk <mtk.manpages@gmail.com>,
        Miklos Szeredi <mszeredi@redhat.com>,
        Philippe =?iso-8859-1?Q?Tr=E9buchet?= 
        <philippe.trebuchet@ssi.gouv.fr>,
        Scott Shell <scottsh@microsoft.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Shuah Khan <shuah@kernel.org>,
        Steve Dower <steve.dower@python.org>,
        Steve Grubb <sgrubb@redhat.com>,
        Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        Thibaut Sautereau <thibaut.sautereau@clip-os.org>,
        Vincent Strubel <vincent.strubel@ssi.gouv.fr>,
        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: [RFC PATCH v9 0/3] Add introspect_access(2) (was O_MAYEXEC)
Message-ID: <20200910184033.GX6583@casper.infradead.org>
References: <20200910164612.114215-1-mic@digikod.net>
 <20200910170424.GU6583@casper.infradead.org>
 <f6e2358c-8e5e-e688-3e66-2cdd943e360e@digikod.net>
 <a48145770780d36e90f28f1526805a7292eb74f6.camel@linux.ibm.com>
 <880bb4ee-89a2-b9b0-747b-0f779ceda995@digikod.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <880bb4ee-89a2-b9b0-747b-0f779ceda995@digikod.net>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, Sep 10, 2020 at 08:38:21PM +0200, Micka?l Sala?n wrote:
> There is also the use case of noexec mounts and file permissions. From
> user space point of view, it doesn't matter which kernel component is in
> charge of defining the policy. The syscall should then not be tied with
> a verification/integrity/signature/appraisal vocabulary, but simply an
> access control one.

permission()?