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From: Arjan van de Ven <arjanv@redhat.com>
To: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@osdl.org>,
	luto@myrealbox.com, mingo@elte.hu, linux-kernel@vger.kernel.org,
	akpm@osdl.org, suresh.b.siddha@intel.com, jun.nakajima@intel.com
Subject: Re: [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2
Date: Fri, 4 Jun 2004 18:37:54 +0200	[thread overview]
Message-ID: <20040604163753.GN16897@devserv.devel.redhat.com> (raw)
In-Reply-To: <20040604181304.325000cb.ak@suse.de>

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On Fri, Jun 04, 2004 at 06:13:04PM +0200, Andi Kleen wrote:
> > So instead of having complex things to try to turn NX on for suid, we 
> > should aim to turn ot on as widely as possible, _even_if_ that means that 
> > people who upgrade hardware might have to do some trivial MIS stuff.
> 
> That is what is currently done on x86-64 in the major distributions
> (SUSE,Red Hat) at least.

yep.

> Of course that is only for the stack. Making the heap non executable
> is another can of worms. I don't know if Fedora does that
> too, SUSE and mainline x86-64 doesn't.

Fedora makes the heap non executable too; it only broke X which has it's own
shared library loader (which btw had all the right mprotects in place, just
ifdef'd for freebsd, ia64 and a few other architectures that default to
non-executable heap, so we just added x86(-64) to that)

Greetings,
    Arjan van de Ven

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  reply	other threads:[~2004-06-04 16:38 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-02 20:50 [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2 Ingo Molnar
2004-06-02 21:00 ` Christoph Hellwig
2004-06-02 21:07   ` Ingo Molnar
2004-06-02 21:13 ` Linus Torvalds
2004-06-02 21:17   ` Arjan van de Ven
2004-06-02 21:31     ` Doug McNaught
2004-06-08  8:46       ` Jakub Jelinek
2004-06-03  1:12     ` Joel Becker
2004-06-03  1:27       ` Andi Kleen
2004-06-03  6:24       ` Arjan van de Ven
2004-06-03 20:37     ` jlnance
2004-06-03  7:21   ` Ingo Molnar
2004-06-03 12:44     ` Ingo Molnar
2004-06-03 15:54       ` Andi Kleen
2004-06-03 23:01         ` Andy Lutomirski
2004-06-03 23:08           ` Andi Kleen
2004-06-03 23:54             ` Andy Lutomirski
2004-06-04  0:05               ` Andy Lutomirski
2004-06-04  9:25             ` Ingo Molnar
2004-06-04 15:26               ` Andy Lutomirski
2004-06-04 15:36                 ` Linus Torvalds
2004-06-04 15:41                   ` Arjan van de Ven
2004-06-04 15:47                     ` Linus Torvalds
2004-06-04 15:51                       ` Arjan van de Ven
2004-06-04 16:02                         ` Linus Torvalds
2004-06-04 16:13                           ` Andi Kleen
2004-06-04 16:37                             ` Arjan van de Ven [this message]
2004-06-04 16:40                               ` Christoph Hellwig
2004-06-04 17:27                                 ` David Mosberger
2004-06-04 17:30                                 ` Andi Kleen
2004-06-08  9:07                             ` Jakub Jelinek
2004-06-08  9:14                               ` Andi Kleen
2004-06-08  9:19                                 ` Arjan van de Ven
2004-06-04 16:51                           ` Ulrich Drepper
2004-06-08 17:15                             ` Bill Davidsen
2004-06-04 18:11                         ` Gerhard Mack
2004-06-04 18:12                           ` Arjan van de Ven
2004-06-04 16:06                   ` Ingo Molnar
2004-06-04 17:20                     ` Ingo Molnar
2004-06-04 17:22                       ` Ingo Molnar
2004-06-04 17:32                         ` Ingo Molnar
2004-06-03 19:24       ` Suresh Siddha
2004-06-03 20:37         ` Andi Kleen
2004-06-03 22:58           ` Suresh Siddha
2004-06-03 23:06             ` Andi Kleen
2004-06-04  9:30             ` Ingo Molnar
2004-06-03 12:57     ` Brian Gerst
2004-06-04  9:39       ` Ingo Molnar
2004-06-04 10:41         ` Christoph Hellwig
2004-06-04 10:48           ` William Lee Irwin III
2004-06-03 16:21     ` Ulrich Drepper
2004-06-03 19:30   ` Kurt Garloff
2004-06-02 21:43 ` Andi Kleen
2004-06-03  0:11 ` Rusty Russell
2004-06-03  0:17   ` Jeff Garzik
2004-06-03  7:24   ` Ingo Molnar
2004-06-03  8:47   ` Ingo Molnar
2004-06-03  8:53   ` Ingo Molnar
2004-06-04  0:04     ` Rusty Russell
2004-06-03  9:07 ` Ingo Molnar
2004-06-03 14:36 ` Gerhard Mack
2004-06-03 16:22   ` Arjan van de Ven
2004-06-04  9:36   ` Ingo Molnar
2004-06-04 11:59     ` Stephen Wille Padnos
     [not found] <22L0f-5Ci-11@gated-at.bofh.it>
     [not found] ` <22O7J-8dw-11@gated-at.bofh.it>
     [not found]   ` <22Wf4-5Xv-23@gated-at.bofh.it>
2004-06-03  9:43     ` Andi Kleen
  -- strict thread matches above, loose matches on Subject: below --
2004-06-04 18:01 Nakajima, Jun

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