Re: [PATCH 1/3] sys_personality: validate personality beforeset_personality()

[Andi Kleen]

On Thu, May 27, 2010 at 10:51:46AM -0700, Linus Torvalds wrote:
> 
> 
> On Thu, 27 May 2010, Oleg Nesterov wrote:
> > 
> > But. Suppose an application does personality(0xffffffff << 32) on x86_64.
> > 
> > Before this patch we return -EINVAL (but wrongly change ->personality).
> > After this patch this is equal to personality(0), right?
> 
> Yes. And I'm willing to take that "risk" in the name of not having to 
> carry crazy stuff around in the kernel.

Perhaps we can have a personality with the old personality behaviour @) 

Just joking, I doubt anything really cares. I don't think personality
was used much in 64bit except for uname emulation.

-Andi
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