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Date: Thu, 10 Sep 2020 19:40:33 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Mickaël Salaün <mic@...ikod.net>
Cc: Mimi Zohar <zohar@...ux.ibm.com>, linux-kernel@...r.kernel.org,
	Aleksa Sarai <cyphar@...har.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Lutomirski <luto@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Christian Brauner <christian.brauner@...ntu.com>,
	Christian Heimes <christian@...hon.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Deven Bowers <deven.desai@...ux.microsoft.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Eric Biggers <ebiggers@...nel.org>,
	Eric Chiang <ericchiang@...gle.com>,
	Florian Weimer <fweimer@...hat.com>,
	James Morris <jmorris@...ei.org>, Jan Kara <jack@...e.cz>,
	Jann Horn <jannh@...gle.com>, Jonathan Corbet <corbet@....net>,
	Kees Cook <keescook@...omium.org>,
	Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
	Matthew Garrett <mjg59@...gle.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Miklos Szeredi <mszeredi@...hat.com>,
	Philippe Trébuchet <philippe.trebuchet@....gouv.fr>,
	Scott Shell <scottsh@...rosoft.com>,
	Sean Christopherson <sean.j.christopherson@...el.com>,
	Shuah Khan <shuah@...nel.org>, Steve Dower <steve.dower@...hon.org>,
	Steve Grubb <sgrubb@...hat.com>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Thibaut Sautereau <thibaut.sautereau@...p-os.org>,
	Vincent Strubel <vincent.strubel@....gouv.fr>,
	kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
	linux-integrity@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [RFC PATCH v9 0/3] Add introspect_access(2) (was O_MAYEXEC)

On Thu, Sep 10, 2020 at 08:38:21PM +0200, Mickaël Salaün 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()?

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