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From: Chris Wright <chrisw@sous-sol.org>
To: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: James Morris <jmorris@namei.org>, Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, Stephen Smalley <sds@tycho.nsa.gov>,
	Eric Paris <eparis@redhat.com>,
	David Quigley <dpquigl@tycho.nsa.gov>,
	Chris Wright <chrisw@sous-sol.org>,
	Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH 2/3] SELinux: add security_task_movememory calls to mm code
Date: Thu, 22 Jun 2006 12:21:31 -0700	[thread overview]
Message-ID: <20060622192131.GW22737@sequoia.sous-sol.org> (raw)
In-Reply-To: <20060622123102.GF27074@sergelap.austin.ibm.com>

* Serge E. Hallyn (serue@us.ibm.com) wrote:
> sorry if I'm being dense - what is actually being protected against
> here?  The only thing I can think of is one process causing performance
> degradation to another by moving it's memory further from it's cpu on a
> NUMA machine.

There's been a short series of patches (plus a short doc from James) to
deal with code that's already doing uid/euid capable() checks w/out a
corresponding LSM hook.  IOW, it's already been recognized as security
sensitive and has DAC check w/out corresponding MAC check.  It's a small
issue with relatively minor security impacts, but is completing
mediation.

thanks,
-chris

  parent reply	other threads:[~2006-06-22 19:22 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-21 19:20 [PATCH 1/3] SELinux: Add security hook definitions for setmempolicy James Morris
2006-06-21 19:23 ` [PATCH 2/3] SELinux: add security_task_setmempolicy hooks to mm code James Morris
2006-06-21 19:33   ` Christoph Lameter
2006-06-21 19:51     ` James Morris
2006-06-21 20:07       ` Christoph Lameter
2006-06-21 20:47         ` James Morris
2006-06-21 19:26 ` [PATCH 3/3] SELinux: Add sockcreate node to procattr API James Morris
2006-06-21 21:33 ` [PATCH 0/3] SELinux: movememory & sockcreate updates for -mm James Morris
2006-06-21 21:34   ` [PATCH 1/3] SELinux: add task_movememory hook James Morris
2006-06-22 21:53     ` Chris Wright
2006-06-21 21:36   ` [PATCH 2/3] SELinux: add security_task_movememory calls to mm code James Morris
2006-06-21 21:43     ` Christoph Lameter
2006-06-21 21:54       ` James Morris
2006-06-22 12:31     ` Serge E. Hallyn
2006-06-22 14:55       ` Christoph Lameter
2006-06-22 19:10       ` James Morris
2006-06-22 19:21       ` Chris Wright [this message]
2006-06-22 21:53     ` Chris Wright
2006-06-21 21:37   ` [PATCH 3/3] SELinux: Add sockcreate node to procattr API James Morris

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