All of lore.kernel.org
 help / color / mirror / Atom feed
From: "H. Peter Anvin" <hpa@zytor.com>
To: Albert Cahalan <acahalan@gmail.com>
Cc: William Lee Irwin III <wli@holomorphy.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: JIT emulator needs
Date: Wed, 20 Jun 2007 20:32:31 -0700	[thread overview]
Message-ID: <4679F14F.9050008@zytor.com> (raw)
In-Reply-To: <787b0d920706202021t567b2fefu869a03ef76f245da@mail.gmail.com>

Albert Cahalan wrote:
>>
>> That's fine.  That's a policy decision.  That's what a security policy
>> *is*.  The owner of the system has decided, by security policy, that
>> that is not allowed.  Bypassing that is not acceptable.
> 
> Fixing a bug should be acceptable.
> 

That's not what you're trying to do, though.  You're trying to change
the behaviour underneath the security policy.  If there is a bug, it's
in the security policy and that's where it needs to be changed.

> Look, let's back up a bit here. At a high level, what exactly do
> you imagine that this behavior was intended for? I suggest you
> list some examples of the attacks that are blocked.
> 
> Can you come up with a reasonable argument that the current behavior
> is the least painful restriction required to block those attacks?
> Does the current behavior block any attack that the proposed behavior
> would not? (list the attacks please)

See above.

	-hpa

  reply	other threads:[~2007-06-21  3:32 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-08  6:35 JIT emulator needs Albert Cahalan
2007-06-08  7:09 ` Eric Dumazet
2007-06-09  4:12   ` Albert Cahalan
2007-06-08 11:10 ` Alan Cox
2007-06-08 16:35   ` Nicholas Miell
2007-06-09  5:17   ` Albert Cahalan
2007-06-09 20:00 ` H. Peter Anvin
2007-06-19 15:08 ` William Lee Irwin III
2007-06-20  3:16   ` Albert Cahalan
2007-06-20 16:01     ` William Lee Irwin III
2007-06-20 16:37       ` H. Peter Anvin
2007-06-20 17:54         ` William Lee Irwin III
2007-06-20 18:23           ` H. Peter Anvin
2007-06-20 18:25         ` Albert Cahalan
2007-06-20 18:51           ` H. Peter Anvin
2007-06-21  3:21             ` Albert Cahalan
2007-06-21  3:32               ` H. Peter Anvin [this message]
2007-06-21  7:38                 ` Albert Cahalan
2007-06-20 18:43       ` Albert Cahalan
2007-06-23  3:52   ` Kyle Moffett
2007-06-24  4:14     ` William Lee Irwin III
2007-06-21 17:44 ` Arjan van de Ven
2007-06-22  5:56   ` Albert Cahalan
2007-06-22 13:43     ` Arjan van de Ven
2007-06-22 14:32       ` Albert Cahalan
2007-06-22 14:42         ` Arjan van de Ven
2007-06-23  2:30           ` Albert Cahalan
     [not found] <8tGiE-2Hv-1@gated-at.bofh.it>
     [not found] ` <8xNvm-2Tw-29@gated-at.bofh.it>
     [not found]   ` <8xYTM-3So-13@gated-at.bofh.it>
2007-06-21 11:08     ` Bodo Eggert

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4679F14F.9050008@zytor.com \
    --to=hpa@zytor.com \
    --cc=acahalan@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=wli@holomorphy.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.