Re: [RFC c/r 3/4] c/r: procfs: add arg_start/end, env_start/end andexit_code members to /proc/$pid/stat

[Cyrill Gorcunov]

On Fri, Jan 27, 2012 at 03:00:37PM -0500, KOSAKI Motohiro wrote:
...
> 
> > +
> > +		seq_printf(m, "%d\n", task->exit_code);
> > +
> 
> Bad this part seems to make new side channel. exit_code is one of
> inter process communication messages. IPC messages should NOT be
> observed from completely unrelated proesses.
> 

You mean we need "permitted" test here, right?

	Cyrill
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