From owner-freebsd-hackers  Sun Jul 25 23:21:11 1999
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To: Sheldon Hearn <sheldonh@uunet.co.za>
Subject: Re: deny ktrace without read permissions? 
Cc: jkoshy@FreeBSD.ORG, Nate Williams <nate@mt.sri.com>,
	freebsd-hackers@FreeBSD.ORG
In-reply-to: Your message of "Mon, 26 Jul 1999 07:41:05 +0200."
		<64855.932967665@axl.noc.iafrica.com> 
References: <64855.932967665@axl.noc.iafrica.com>  
Date: Mon, 26 Jul 1999 00:21:15 -0600
From: Warner Losh <imp@village.org>
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In message <64855.932967665@axl.noc.iafrica.com> Sheldon Hearn writes:
: This doesn't look right. If I can execute a binary, I can have the
: system allocate memory to me and but the binary image in it. It's my
: memory. :-)

Also, one can use a custom libc to get around the readonly ness, since
functions in libc can access the entire memory space (at least on
intel).

Warner


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