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Date:      Mon, 26 Jul 1999 00:21:15 -0600
From:      Warner Losh <imp@village.org>
To:        Sheldon Hearn <sheldonh@uunet.co.za>
Cc:        jkoshy@FreeBSD.ORG, Nate Williams <nate@mt.sri.com>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: deny ktrace without read permissions? 
Message-ID:  <199907260621.AAA37661@harmony.village.org>
In-Reply-To: Your message of "Mon, 26 Jul 1999 07:41:05 %2B0200." <64855.932967665@axl.noc.iafrica.com> 
References:  <64855.932967665@axl.noc.iafrica.com>  

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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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