From: Andrea Arcangeli <andrea@cpushare.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: chris@scary.beasts.org, Andrea Arcangeli <andrea@cpushare.com>,
Hans Reiser <reiser@namesys.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: secure computing for 2.6.7
Date: Mon, 2 Aug 2004 01:10:47 +0200 [thread overview]
Message-ID: <20040801231047.GI6295@dualathlon.random> (raw)
In-Reply-To: <1091393114.31139.5.camel@localhost.localdomain>
On Sun, Aug 01, 2004 at 09:45:14PM +0100, Alan Cox wrote:
> You can already do all of this using several user space applications
> that manage it via ptrace. They do have a performance hit however.
the tracer can be killed by oom due some other random app in the
machine, plus SIGCHLD may confuse the tracer, then it needs to know
about arch details again (like the bitmap), and the whole ptrace
infastructure is a lot more complicate and in turn less secure. syscall
performance is the last worry (at least for my usage).
next prev parent reply other threads:[~2004-08-01 23:11 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-04 17:39 secure computing for 2.6.7 andrea
2004-07-04 21:35 ` Andrew Morton
2004-07-04 23:32 ` andrea
2004-07-05 0:37 ` Phy Prabab
2004-10-12 14:24 ` Andrea Arcangeli
2004-10-12 15:32 ` Rik van Riel
2004-10-12 15:59 ` Andrea Arcangeli
2004-10-12 16:28 ` Rik van Riel
2004-10-12 17:46 ` Andrea Arcangeli
2004-10-12 18:04 ` Rik van Riel
2004-10-12 18:10 ` Rik van Riel
2004-10-12 18:29 ` Andrea Arcangeli
2004-07-07 19:27 ` Hans Reiser
2004-08-01 10:22 ` Andrea Arcangeli
2004-08-01 12:01 ` chris
2004-08-01 15:01 ` Andrea Arcangeli
2004-08-01 17:29 ` chris
2004-08-01 18:52 ` Bernd Eckenfels
2004-08-01 20:45 ` Alan Cox
2004-08-01 23:10 ` Andrea Arcangeli [this message]
2004-08-01 23:08 ` Alan Cox
2004-08-02 10:25 ` Andrea Arcangeli
2004-08-01 23:06 ` Andrea Arcangeli
2004-08-02 6:52 ` David Wagner
2004-08-03 12:48 ` Stephen Smalley
2004-08-01 14:55 ` Bernd Eckenfels
2004-08-01 15:51 ` Andrea Arcangeli
2004-08-01 17:24 ` Bernd Eckenfels
2004-08-02 3:17 ` Horst von Brand
2004-08-02 16:31 ` Andrea Arcangeli
2004-08-03 12:40 ` Stephen Smalley
2004-08-03 21:02 ` Alexander Lyamin
2004-08-05 11:47 ` Stephen Smalley
2004-08-04 8:57 ` Hans Reiser
2004-08-05 11:48 ` Stephen Smalley
2004-08-07 23:20 ` Hans Reiser
2004-08-09 12:35 ` Stephen Smalley
[not found] <2ejhQ-4lc-5@gated-at.bofh.it>
[not found] ` <2fqhq-1RU-45@gated-at.bofh.it>
[not found] ` <2olLt-4wI-5@gated-at.bofh.it>
2004-08-02 0:05 ` Andi Kleen
2004-08-02 10:19 ` Andrea Arcangeli
2004-08-02 19:06 ` Rik van Riel
2004-08-02 21:35 ` Andrea Arcangeli
2004-08-04 13:18 ` V13
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