linux-kernel - Re: [RFC PATCH v1 0/5] Add support for O

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Message-ID: <874lbhoef3.fsf@oldenburg2.str.redhat.com>
Date:   Thu, 13 Dec 2018 12:26:56 +0100
From:   Florian Weimer <fweimer@...hat.com>
To:     Mimi Zohar <zohar@...ux.ibm.com>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Mickaël Salaün 
        <mic@...ikod.net>, linux-kernel@...r.kernel.org,
        Al Viro <viro@...iv.linux.org.uk>,
        James Morris <jmorris@...ei.org>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Matthew Garrett <mjg59@...gle.com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Mickaël Salaün <mickael.salaun@....gouv.fr>,
        Philippe Trébuchet 
        <philippe.trebuchet@....gouv.fr>, Shuah Khan <shuah@...nel.org>,
        Thibaut Sautereau <thibaut.sautereau@....gouv.fr>,
        Vincent Strubel <vincent.strubel@....gouv.fr>,
        Yves-Alexis Perez <yves-alexis.perez@....gouv.fr>,
        kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [RFC PATCH v1 0/5] Add support for O_MAYEXEC

* Mimi Zohar:

> The indication needs to be set during file open, before the open
> returns to the caller.  This is the point where ima_file_check()
> verifies the file's signature.  On failure, access to the file is
> denied.

Does this verification happen for open with O_PATH?

Thanks,
Florian