linux-kernel - Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set

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Date:   Fri, 07 Apr 2017 10:17:18 +0100
From:   David Howells <dhowells@...hat.com>
To:     Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:     dhowells@...hat.com, Dave Young <dyoung@...hat.com>,
        linux-kernel@...r.kernel.org,
        Matthew Garrett <mjg59@...f.ucam.org>,
        linux-efi@...r.kernel.org, gnomes@...rguk.ukuu.org.uk,
        Chun-Yi Lee <jlee@...e.com>, gregkh@...uxfoundation.org,
        kexec@...ts.infradead.org, linux-security-module@...r.kernel.org,
        keyrings@...r.kernel.org, matthew.garrett@...ula.com
Subject: Re: [PATCH 09/24] kexec_file: Disable at runtime if securelevel has been set

Mimi Zohar <zohar@...ux.vnet.ibm.com> wrote:

> > Okay, fair enough.  I can stick in an OR with an IS_ENABLED on some IMA
> > symbol.  CONFIG_IMA_KEXEC maybe?  And also require IMA be enabled?
> 
> Not quite, since as Dave pointed out, IMA is policy driven.  As a
> policy is installed, we could set a flag.

Does such a flag exist as yet?

David