Subject: Re: copyout and address space overflows
To: Joerg Sonnenberger <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 11/16/2006 12:44:57
On Nov 16, 2006, at 10:15 AM, Joerg Sonnenberger wrote:
> On Thu, Nov 16, 2006 at 09:43:20AM -0800, Jason Thorpe wrote:
>> m68k platforms based on the Hibler pmap (i.e. all of them but sun2/
>> sun3/sun3x) have completely separate 32-bit address spaces for kernel
>> and user space.
> Is the kernel space using the full 32bit address space or only
> 31bit? In
> the latter case, this would still catch the issues. Checking for
> overflows in the src domain would make sense as well.
Full separate 32-bit address space. The Motorola MMU supports this.