Re: [GIT PULL] x86/kaslr for v3.14

From: Ingo Molnar
Date: Tue Jan 21 2014 - 09:03:20 EST

* H. Peter Anvin <hpa@xxxxxxxxx> wrote:

> On 01/21/2014 02:27 AM, Ingo Molnar wrote:
> >
> > Hm, live annotation of the kernel image is a relatively new perf
> > feature, and KASLR predated that (by years) - which would at least in
> > part explain why it went unnoticed. (Although it does not excuse the
> > lack of testing.)
> kASLR is new, but on 32 bits we have relocated the kernel for a long
> time. [...]

I doubt many people develop on 32-bit x86, and the group of people
looking at annotated 32-bit assembly kernel profiles ought to be
another order of magnitude smaller than that ...

> [...] kASLR is the first use case of relocating the 64-bit kernel,
> though.



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