Subject: Re: Is this kernel fault OK?
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Daniel Carosone <>
List: tech-kern
Date: 06/27/2003 07:25:52
On Thu, Jun 26, 2003 at 05:19:33PM -0400, der Mouse wrote:
> > No, userland tools should never be able to crash the kernel (other
> > than root deliberately scribbling in kmem or something similar).
> I once tried to define what it is about things like
> 	dd if=/dev/zero of=/dev/mem
> that exempt them from the "userland should never be able to crash the
> kernel" dictum.  I never really got anywhere.  Any thoughts?

Hm, the fact that you need to be root, at which point there are
many ways you can hose yourself?