Re: [PATCH] exec: Only allow a threaded init to exec from the thread_group_leader

From: Pavel Machek
Date: Sun Jan 29 2006 - 10:23:24 EST


On Ne 29-01-06 02:48:31, Andrew Morton wrote:
> ebiederm@xxxxxxxxxxxx (Eric W. Biederman) wrote:
> >
> > If process id namespaces become a reality init stops being
> > terribly special, and becomes something you may have several
> > of running at any one time. If one of those inits is compromised
> > by a hostile user I having the whole system go down so we can
> > avoid executing a cheap test sounds terribly wrong. That is
> > why I really care.
>
> Wouldn't it be better to do nothing until/unless there's some code in the
> kernel or init which actually needs the change?

It is common to do init=/bin/bash, and I guess people are doing it
with all kinds of wonderful apps....
Pavel
--
Thanks, Sharp!
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