Subject: Re: new mremap(2): relax alignment restrictions?
To: Eric Haszlakiewicz <erh@nimenees.com>
From: Darren Reed <darrenr@netbsd.org>
List: tech-kern
Date: 07/25/2007 08:06:01
Eric Haszlakiewicz wrote:
...
> I suppose there's a bit of a performance hit with zeroing out the page
> every time, but it seems like a necessary thing to do. A couple other
> OSes I've tried it on do so.
There are security implications if we're not doing so.
Do you have a program that can demonstrate being able to access
"random garbage" in this manner?
Darren