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Date: Thu, 8 Jun 2017 16:58:01 -0400
From: Matt Brown <>
To: Casey Schaufler <>,
 LSM <>, James Morris <>
Cc: John Johansen <>,
 Tetsuo Handa <>,
 Paul Moore <>, Stephen Smalley <>,
 Kees Cook <>,
 "" <>,
 LKLM <>
Subject: Re: [PATCH 0/6] LSM: Security module blob

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.


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