From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering
Date: Thu, 26 May 2011 06:27:52 +0000 [thread overview]
Message-ID: <20110526062752.GA14622@localhost.ucw.cz> (raw)
In-Reply-To: <alpine.LRH.2.00.1105161006340.21749@tundra.namei.org>
On Mon 2011-05-16 10:36:05, James Morris wrote:
> On Fri, 13 May 2011, Ingo Molnar wrote:
> How do you reason about the behavior of the system as a whole?
>
>
> > I argue that this is the LSM and audit subsystems designed right: in the long
> > run it could allow everything that LSM does at the moment - and so much more
> > ...
>
> Now you're proposing a redesign of the security subsystem. That's a
> significant undertaking.
>
> In the meantime, we have a simple, well-defined enhancement to seccomp
> which will be very useful to current users in reducing their kernel attack
> surface.
Well, you can do the same with subterfugue, even without kernel
changes. But that's ptrace -- slow. (And it already shows that syscall
based filters are extremely tricky to configure).
If yu want speed, seccomp+server for non-permitted operations seems like reasonable way.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2011-05-26 6:27 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1304017638.18763.205.camel@gandalf.stny.rr.com>
2011-05-12 3:02 ` [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering Will Drewry
2011-05-12 7:48 ` Ingo Molnar
2011-05-12 9:24 ` Kees Cook
2011-05-12 10:49 ` Ingo Molnar
2011-05-12 11:44 ` James Morris
2011-05-12 13:01 ` Ingo Molnar
2011-05-12 16:26 ` Will Drewry
2011-05-16 12:55 ` Ingo Molnar
2011-05-16 14:42 ` Will Drewry
2011-05-13 0:18 ` James Morris
2011-05-13 12:10 ` Ingo Molnar
2011-05-13 12:19 ` Peter Zijlstra
2011-05-13 12:26 ` Ingo Molnar
2011-05-13 12:39 ` Peter Zijlstra
2011-05-13 12:43 ` Peter Zijlstra
2011-05-13 12:54 ` Ingo Molnar
2011-05-13 13:08 ` Peter Zijlstra
2011-05-13 13:18 ` Ingo Molnar
2011-05-13 13:55 ` Peter Zijlstra
2011-05-13 14:57 ` Ingo Molnar
2011-05-13 15:27 ` Peter Zijlstra
2011-05-14 7:05 ` Ingo Molnar
2011-05-16 16:23 ` Steven Rostedt
2011-05-16 16:52 ` Ingo Molnar
2011-05-16 17:03 ` Steven Rostedt
2011-05-17 12:42 ` Ingo Molnar
2011-05-17 13:05 ` Steven Rostedt
2011-05-17 13:19 ` Ingo Molnar
2011-05-19 4:07 ` Will Drewry
2011-05-19 12:22 ` Steven Rostedt
2011-05-19 21:05 ` Will Drewry
2011-05-24 15:59 ` Will Drewry
2011-05-24 16:20 ` Peter Zijlstra
2011-05-24 16:25 ` Thomas Gleixner
2011-05-24 19:00 ` Will Drewry
2011-05-24 19:54 ` Ingo Molnar
2011-05-24 20:10 ` Ingo Molnar
2011-05-25 10:35 ` Thomas Gleixner
2011-05-25 15:01 ` Ingo Molnar
2011-05-25 17:43 ` Peter Zijlstra
2011-05-29 20:17 ` Ingo Molnar
2011-05-25 17:48 ` Thomas Gleixner
2011-05-26 8:43 ` Ingo Molnar
2011-05-26 9:15 ` Ingo Molnar
2011-05-24 20:08 ` Ingo Molnar
2011-05-24 20:14 ` Steven Rostedt
2011-05-13 15:17 ` Eric Paris
2011-05-13 15:29 ` [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system callfiltering David Laight
2011-05-16 12:03 ` Ingo Molnar
2011-05-13 12:49 ` [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering Ingo Molnar
2011-05-13 13:55 ` Peter Zijlstra
2011-05-13 15:02 ` Ingo Molnar
2011-05-13 15:10 ` Eric Paris
2011-05-13 15:23 ` Peter Zijlstra
2011-05-13 15:55 ` Eric Paris
2011-05-13 16:29 ` Will Drewry
2011-05-14 7:30 ` Ingo Molnar
2011-05-14 20:57 ` Will Drewry
2011-05-16 12:43 ` Ingo Molnar
2011-05-16 15:29 ` Will Drewry
2011-05-17 12:57 ` Ingo Molnar
2011-05-16 0:36 ` James Morris
2011-05-16 15:08 ` Ingo Molnar
2011-05-17 2:24 ` James Morris
2011-05-17 13:10 ` Ingo Molnar
2011-05-17 13:29 ` James Morris
2011-05-17 18:34 ` Ingo Molnar
2011-05-26 6:27 ` Pavel Machek [this message]
2011-05-26 8:35 ` Ingo Molnar
2011-05-12 12:15 ` Frederic Weisbecker
2011-05-12 11:33 ` James Morris
2011-05-13 19:35 ` Arnd Bergmann
2011-05-14 20:58 ` Will Drewry
2011-05-15 6:42 ` Arnd Bergmann
2011-05-16 12:00 ` Ingo Molnar
2011-05-16 15:26 ` Steven Rostedt
2011-05-16 15:28 ` Will Drewry
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