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