Re: [PATCH 2/3] SELinux: add security_task_movememory calls to mmcode

[Christoph Lameter]

On Thu, 22 Jun 2006, Serge E. Hallyn wrote:

> sorry if I'm being dense - what is actually being protected against
> here?  The only thing I can think of is one process causing performance
> degradation to another by moving it's memory further from it's cpu on a
> NUMA machine.

Right.
 
> Is there something more?  (And is what I'm guessing even possible?)

In the case of move_pages() a process can find out where the pages of 
another process were allocated.
 
> I'm not arguing against this hook, just wondering whether there's
> more to this than I see.

I was wondering myself.

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