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From: James Morris <jmorris@namei.org>
To: "Larry H." <research@subreption.com>
Cc: Rik van Riel <riel@redhat.com>,
	Christoph Lameter <cl@linux-foundation.org>,
	Stephen Smalley <sds@tycho.nsa.gov>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-mm@kvack.org, Alan Cox <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org, pageexec@freemail.hu
Subject: Re: Security fix for remapping of page 0 (was [PATCH] Change ZERO_SIZE_PTR to point at unmapped space)
Date: Thu, 4 Jun 2009 08:52:21 +1000 (EST)	[thread overview]
Message-ID: <alpine.LRH.2.00.0906040837430.30842@tundra.namei.org> (raw)
In-Reply-To: <20090603172123.GG6701@oblivion.subreption.com>

On Wed, 3 Jun 2009, Larry H. wrote:

> whenever it is feasible, IMHO. I think everyone here will agree that
> SELinux has a track of being disabled by users after installation
> because they don't want to invest the necessary time on understanding
> and learning the policy language or management tools.

The Fedora smolt stats show an overwhelming majority of people leave it 
running.  Many don't know it's there at all and never have problems.  
It's known to have saved many everyday systems from breaches.

That's not to say that a significant number of people don't disable it, 
similarly to the way people disable iptables, use weak passwords, drive 
without seat belts, and cycle without helmets.  We do need to try and keep 
the default as safe as possible.


- James
-- 
James Morris
<jmorris@namei.org>

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  reply	other threads:[~2009-06-03 22:52 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-30 19:28 [PATCH] Change ZERO_SIZE_PTR to point at unmapped space Larry H.
2009-05-30 22:29 ` Linus Torvalds
2009-05-30 23:00   ` Larry H.
2009-05-31  2:02     ` Linus Torvalds
2009-05-31  2:21       ` Larry H.
2009-06-02 15:37         ` Christoph Lameter
2009-06-02 20:34           ` Larry H.
2009-06-03 14:50             ` Security fix for remapping of page 0 (was [PATCH] Change ZERO_SIZE_PTR to point at unmapped space) Christoph Lameter
2009-06-03 15:07               ` Linus Torvalds
2009-06-03 15:23                 ` Christoph Lameter
2009-06-03 15:38                   ` Linus Torvalds
2009-06-03 16:14                     ` Alan Cox
2009-06-03 16:19                       ` Linus Torvalds
2009-06-03 16:24                         ` Eric Paris
2009-06-03 16:22                     ` Eric Paris
2009-06-03 16:28                       ` Linus Torvalds
2009-06-03 16:32                         ` Eric Paris
2009-06-03 16:44                           ` Linus Torvalds
2009-06-03 15:11               ` Stephen Smalley
2009-06-03 15:41                 ` Christoph Lameter
2009-06-03 16:18                   ` Linus Torvalds
2009-06-03 16:28                   ` Larry H.
2009-06-03 16:36                     ` Rik van Riel
2009-06-03 16:47                       ` Linus Torvalds
2009-06-03 17:16                         ` Eric Paris
2009-06-03 17:28                           ` Linus Torvalds
2009-06-03 17:31                             ` Eric Paris
2009-06-03 17:24                         ` Larry H.
2009-06-03 17:21                       ` Larry H.
2009-06-03 22:52                         ` James Morris [this message]
2009-06-03 17:29               ` Alan Cox
2009-06-03 17:35                 ` Linus Torvalds
2009-06-03 18:00                   ` Larry H.
2009-06-03 18:12                     ` Linus Torvalds
2009-06-03 18:39                       ` Larry H.
2009-06-03 18:45                         ` Linus Torvalds
2009-06-03 18:50                           ` Linus Torvalds
2009-06-03 18:59                             ` Christoph Lameter
2009-06-03 19:11                               ` Rik van Riel
2009-06-03 19:14                               ` Eric Paris
2009-06-03 19:42                                 ` Christoph Lameter
2009-06-03 19:51                                   ` Eric Paris
2009-06-03 20:04                                     ` Christoph Lameter
2009-06-03 20:16                                       ` Eric Paris
2009-06-03 20:36                                         ` Christoph Lameter
2009-06-03 21:20                                       ` Linus Torvalds
2009-06-04  2:41                                       ` James Morris
2009-06-03 19:21                               ` Alan Cox
2009-06-03 19:45                                 ` Christoph Lameter
2009-06-03 21:07                                   ` Alan Cox
2009-06-03 19:27                               ` Linus Torvalds
2009-06-03 19:50                                 ` Christoph Lameter
2009-06-03 20:00                             ` pageexec
2009-06-03 19:41                           ` pageexec
2009-06-07 10:29               ` Pavel Machek
2009-05-30 22:32 ` [PATCH] Change ZERO_SIZE_PTR to point at unmapped space Peter Zijlstra
2009-05-30 22:51   ` Larry H.

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