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

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Message-ID: <20080324230458.GA173@tv-sign.ru>
Date:	Tue, 25 Mar 2008 02:04:58 +0300
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Pavel Machek <pavel@....cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Roland McGrath <roland@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ptrace: it is fun to strace /sbin/init

On 03/24, Pavel Machek wrote:
>
> > /sbin/init is important, but there are other important (and sometimes
> > much more important) services. Why it is so special so that we can't
> > debug/strace it?
> 
> Maybe. Let's kill /sbin/init protection in 2.6.26. But making it
> optional is wrong.

You are right, the boot parameter is silly. How about sysctl?

Stephen, do you see any security problems if we make /sbin/init
ptraceable by default?

Oleg.

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