linux-kernel - Re: [PATCH] ptrace: it is fun to strace /sbin/init

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Message-Id: <20080324152906.dee7b272.akpm@linux-foundation.org>
Date:	Mon, 24 Mar 2008 15:29:06 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	ebiederm@...ssion.com, xemul@...nvz.org, pavel@....cz,
	sds@...ho.nsa.gov, roland@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ptrace: it is fun to strace /sbin/init

On Sun, 23 Mar 2008 16:51:10 +0300
Oleg Nesterov <oleg@...sign.ru> wrote:

> Ptracing of /sbin/init is not allowed. Of course, this is dangerous, but may
> be useful. Introduce the kernel boot parameter to allow this, so that we can't
> surprise some special/secured systems.

I dunno, is this really needed?  If root wants to screw up his kernel then
he is free to do so.

And if we *really* want an extra foot-protector for this, it could be a
runtime /proc/sys/kernel/root-can-shoot-inits-foot rather than a boot-time
option?

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