Re: Non-Exec stack patches

[Kurt Garloff]

On Wed, Apr 14, 2004 at 10:47:02AM +0100, Jamie Lokier wrote:
> People looking at PROT_EXEC page table flags might want to be aware
> that <asm-um/pgtable.h> mimics the behaviour of i386: read implies and
> is implied by exec, write implies read.
> 
> That might mean user-mode linux doesn't provide no-exec-stack
> protection even when the underlying kernel does offer it.  I'm not sure.

I thought UML only runs on i386.
And on i386, you have no NX feature.
You can run i386 UML on AMD64 (with 64bit kernel) though.

Regards,
-- 
Kurt Garloff  <garloff@xxxxxxx>                            Cologne, DE 
SUSE LINUX AG, Nuernberg, DE                          SUSE Labs (Head)

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