Re: [kernel-hardening] [PATCH 0/6] LSM: Security module blob management

[Matt Brown]

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.

Matt