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Re: [Xen-devel] [PATCH] libxc hardening

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] libxc hardening
From: Chris Wright <chrisw@xxxxxxxx>
Date: Thu, 23 Jun 2005 11:24:48 -0700
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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* Keir Fraser (Keir.Fraser@xxxxxxxxxxxx) wrote:
> mmap() will never return NULL address (according to the man page). I 
> guess you might be able to force it with MAP_FIXED, but no sane mmap 
> implementation would ever automatically choose NULL as a reasonable 
> valid return address. :-)

Heh, sadly we just recently fixed a bug in the kernel that actually
allowed returning NULL w/out MAP_FIXED.  But aside from bugs... ;-)

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