Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751526AbdFIDy5 (ORCPT ); Thu, 8 Jun 2017 23:54:57 -0400 Received: from namei.org ([65.99.196.166]:37493 "EHLO namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751483AbdFIDyz (ORCPT ); Thu, 8 Jun 2017 23:54:55 -0400 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 , "kernel-hardening@lists.openwall.com" , LKLM Subject: Re: [kernel-hardening] [PATCH 0/6] LSM: Security module blob management In-Reply-To: <2a28d30a-22d3-33ff-581c-f1347fbbae74@nmatt.com> Message-ID: References: <59cec608-608e-6de6-21d9-bdec7b0ded3b@schaufler-ca.com> <2a28d30a-22d3-33ff-581c-f1347fbbae74@nmatt.com> User-Agent: Alpine 2.20 (LRH 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1045 Lines: 26 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