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Date:      Mon, 4 Mar 2002 12:58:56 +0000
From:      Bruce M Simpson <bms@spc.org>
To:        Martin Blapp <mb@imp.ch>
Cc:        freebsd-security@freebsd.org
Subject:   Re: implementing non-executable pages for IA-32 processors
Message-ID:  <20020304125855.H2325@spc.org>
In-Reply-To: <20020301125948.W40806-100000@levais.imp.ch>; from mb@imp.ch on Fri, Mar 01, 2002 at 01:01:13PM %2B0100
References:  <20020301125948.W40806-100000@levais.imp.ch>

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On Fri, Mar 01, 2002 at 01:01:13PM +0100, Martin Blapp wrote:
> 
> Hi,
> Could this adapted to FreeBSD ?
> http://pageexec.virtualave.net/pageexec.txt

Yes, but it's got issues in that it relies upon the behaviour of a 
combination of page flags which is normally inconsistent on Intel
processors.

I know SecureWave offer such functionality as a product for Windows
2000 and NT, but the small print says 'Intel procesors supported only'.

BMS

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