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From: Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>
To: Brent Casavant <bcasavan@sgi.com>
Cc: Al Viro <viro@ftp.linux.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: O_NOLINK for open()
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Date: Fri, 14 Sep 2007 18:37:54 +0200
In-Reply-To: <20070912180937.Y5573@pkunk.americas.sgi.com> (Brent Casavant's
	message of "Wed, 12 Sep 2007 18:27:52 -0500 (CDT)")
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Brent Casavant <bcasavan@sgi.com> writes:

> My (limited) understanding of ptrace is that a parent-child
> relationship is needed between the tracing process and the traced
> process (at least that's what I gather from the man page).  This
> does give cause for concern, and I might have to see what can be
> done to alleviate this concern.  I fully realize that making this
> design completely unassilable is a fools errand, but closing off
> as many attack vectors as possible seems prudent.

No relationship needed:

strace -p <pid>

MfG
        Goswin
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