Re: JIT emulator needs

From: H. Peter Anvin
Date: Wed Jun 20 2007 - 23:32:44 EST


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
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