Re: [patch] PID namespace design bug, workaround

[Linus Torvalds]

On Fri, 2 Nov 2007, Dave Hansen wrote:
> 
> There are certainly more of these, but here is one In the futex
> userspace address, we install the current pid's vnr into a userspace
> address.  

Now, realistically, why not just say "you can't use these things across 
namespaces"? Does anybody really care? After all, somebody who screws this 
up only screws himself, not anybody else.

		Linus
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