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Date: Fri, 9 Jun 2017 13:54:25 +1000 (AEST)
From: James Morris <>
To: Matt Brown <>
cc: Casey Schaufler <>,
        LSM <>,
        John Johansen <>,
        Tetsuo Handa <>,
        Paul Moore <>, Stephen Smalley <>,
        Kees Cook <>,
        "" <>,
        LKLM <>
Subject: Re: [PATCH 0/6] LSM: Security module blob

On Thu, 8 Jun 2017, Matt Brown wrote:

> On 6/8/17 4:43 PM, Casey Schaufler wrote:
> > Subject: [PATCH 0/6] LSM: Security module blob management
> > 
> > This patch set moves management of security blobs out of
> > the Linux security modules and into the security module
> > infrastructure. This allows "major" security modules that
> > use blobs to be stacked, just as "minor" modules that
> > do not use blobs can be stacked today. It stops short of
> > providing a safe interface for the Netlabel and SO_PEERSEC.
> > As a result, any of the existing security modules may be
> > used in combination except for SELinux and Smack.
> Very excited about this! I can definitely see use cases for special
> purpose LSMs that require data blobs but do not replace things like
> SELinux, SMACK or AppArmor. I have had a few ideas recently that would
> not be possible under the current setup of one shared blob.

Please post details of these ideas once you have say a prototype working 
with Casey's patches.

James Morris

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