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From: Rik van Riel <riel@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Ingo Molnar <mingo@elte.hu>,
	James Morris <jmorris@namei.org>,
	linux-kernel@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
	Alexander Viro <viro@ftp.linux.org.uk>
Subject: Re: Upstream first policy
Date: Mon, 08 Mar 2010 18:18:21 -0500	[thread overview]
Message-ID: <4B9585BD.6070904@redhat.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1003080948060.3989@localhost.localdomain>

On 03/08/2010 01:08 PM, Linus Torvalds wrote:

> Things like "/etc/passwd" really are about the _pathname_, not the inode.
> It really is the _path_ that is special, because that is fundamentally the
> thing you trust.

On the other hand, '/etc/shadow' has the opposite constraint,
where the system will not trust most of the applications with
the data from that file.

Using label security to protect the contents makes sense there.

Your example appears to be about "can the application trust
the data?", while the label based security solves "can the
application be trusted with the data?"

These are two different things.

  parent reply	other threads:[~2010-03-08 23:19 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-07 21:23 Upstream first policy James Morris
2010-03-07 21:31 ` Linus Torvalds
2010-03-07 21:36   ` Linus Torvalds
2010-03-08  9:46 ` Ingo Molnar
2010-03-08 17:30   ` Alan Cox
2010-03-08 18:08     ` Linus Torvalds
2010-03-08 18:45       ` Al Viro
2010-03-08 18:53         ` Al Viro
2010-03-08 18:59         ` Linus Torvalds
2010-03-08 19:15           ` Linus Torvalds
2010-03-08 19:17           ` Alan Cox
2010-03-08 19:32             ` Linus Torvalds
2010-03-09  0:48               ` Kyle McMartin
2010-03-08 21:20             ` Chris Adams
2010-03-08 19:18           ` Al Viro
2010-03-09  1:18           ` Luca Barbieri
2010-03-09  1:25             ` Al Viro
2010-03-09  1:51               ` Luca Barbieri
2010-03-09  1:55                 ` Al Viro
2010-03-09  2:09                   ` Luca Barbieri
2010-03-08 19:08       ` Alan Cox
2010-03-08 19:18         ` Linus Torvalds
2010-03-08 19:27           ` Alan Cox
2010-03-08 19:34             ` Linus Torvalds
2010-03-09  7:29               ` Ingo Molnar
2010-03-09  8:46                 ` Dave Airlie
2010-03-09 14:58                   ` Ulrich Drepper
2010-03-08 23:02           ` Eric W. Biederman
2010-03-08 23:18             ` Eric Paris
2010-03-09 15:16               ` Florian Mickler
2010-03-09 22:49             ` Alan Cox
2010-03-11  3:52               ` Eric W. Biederman
2010-03-08 22:12       ` Ulrich Drepper
2010-03-08 23:12         ` Eric Paris
2010-03-08 23:21           ` Linus Torvalds
2010-03-08 23:18       ` Rik van Riel [this message]
2010-03-08 23:37         ` Linus Torvalds
2010-03-08 23:51           ` Rik van Riel
2010-03-09  0:10             ` Linus Torvalds
2010-03-09  3:26               ` Casey Schaufler
2010-03-09  3:58                 ` Linus Torvalds
2010-03-09 13:09                   ` Samir Bellabes
2010-03-09  0:15           ` Al Viro
2010-03-09  0:48             ` Al Viro
2010-03-09  1:49               ` Linus Torvalds
2010-03-09  2:05                 ` Al Viro
2010-03-09  2:18                   ` Linus Torvalds
2010-03-23 13:59     ` Pavel Machek
     [not found] <elwcV-406-1@gated-at.bofh.it>
     [not found] ` <elHL4-42q-5@gated-at.bofh.it>
     [not found]   ` <elP5U-6Ku-29@gated-at.bofh.it>
     [not found]     ` <elPyV-7zE-7@gated-at.bofh.it>
     [not found]       ` <elQbE-8ll-7@gated-at.bofh.it>
     [not found]       ` <elQv0-vu-13@gated-at.bofh.it>
     [not found]         ` <elQEG-Hn-33@gated-at.bofh.it>
2010-03-08 19:40           ` James Kosin
  -- strict thread matches above, loose matches on Subject: below --
2010-03-04 18:39 [git pull] drm request 3 Jesse Barnes
2010-03-04 18:51 ` Linus Torvalds
2010-03-04 18:56   ` Jesse Barnes
2010-03-04 19:08     ` Linus Torvalds
2010-03-04 19:25       ` Dave Airlie
2010-03-04 20:01         ` Linus Torvalds
2010-03-04 22:06           ` Dave Airlie
2010-03-05  0:08             ` Linus Torvalds
2010-03-05  0:28               ` Ben Skeggs
2010-03-05  0:41                 ` Linus Torvalds
2010-03-05  1:19                   ` Upstream first policy Kyle McMartin
2010-03-05  1:28                     ` Linus Torvalds

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