Re: UVM and the NULL page

To: Thor Lancelot Simon <tls%panix.com@localhost>
Subject: Re: UVM and the NULL page
From: Eduardo Horvath <eeh%NetBSD.org@localhost>
Date: Mon, 1 Aug 2016 15:56:01 +0000 (UTC)

On Sat, 30 Jul 2016, Thor Lancelot Simon wrote:

> 1) amd64 partially shares VA space between the kernel and userland.  It
>    is not unique in this but most architectures do not.

FWIW all the pmaps I worked on have split user/kernel address spaces and 
do not share this vulnerability.

Eduardo

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References:
- UVM and the NULL page
  - From: Maxime Villard
- Re: UVM and the NULL page
  - From: Pierre Pronchery
- Re: UVM and the NULL page
  - From: Maxime Villard
- Re: UVM and the NULL page
  - From: Joerg Sonnenberger
- Re: UVM and the NULL page
  - From: Paul Goyette
- Re: UVM and the NULL page
  - From: Wolfgang Solfrank
- Re: UVM and the NULL page
  - From: Maxime Villard
- Re: UVM and the NULL page
  - From: Thor Lancelot Simon

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