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

[Bodo Eggert]

Eric W. Biederman <ebiederm@xxxxxxxxxxxx> 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.

There are virtual environments like linux-vserver(.org), where init is
running several times on one system, each with their local/virtual
pid being 1. Killing them does no harm unless it's the real init.
I asume in your system,  the real init will exist under the control
of the administrator, too, so there should be no danger.
-- 
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/