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

From: H. Peter Anvin
Date: Tue Jan 21 2014 - 09:06:45 EST


On 01/21/2014 06:03 AM, Ingo Molnar wrote:
>
> * 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 ...
>

Yes... I was commenting on the statement that "kASLR predated that by
years". It hasn't been common.

-hpa

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/