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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <27362.1491556638@warthog.procyon.org.uk>
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