[Crash-utility] [PATCH] Add --kaslr=auto option to automatically detect kaslr offset

[Kees Cook]

On Wed, Feb 26, 2014 at 6:53 AM, Dave Anderson <anderson at redhat.com> wrote:
>
>
> ----- Original Message -----
>
> ...
>
>>
>> So, with all of the above in place, off the top of my head these would
>> be the remaining issues:
>>
>> (1) Support for the KERNELOFFSET vmcoreinfo entry, which if it exists,
>>     would be used to mimic/obviate the --kalsr=auto functionality.

FWIW, hpa has picked up the vmcoreinfo change and is going to try to
push it for 3.14.

>> (2) Introducing/allowing --kalsr support for 32-bit x86 kernels.
>>
>> (3) Support for compressed KASLR kdumps when they become supported by the
>>     makedumpfile facility; as far as crash is concerned, though, it should
>>     "just work".
>>
>
> And I guess this one as well?
>
>   [PATCH v2] x86, kaslr: randomize module base load address
>   https://lkml.org/lkml/2014/2/25/630
>
> Although it only seems like it bumps up the minimum base address
> for the modules virtual address region?

Right, this just "skips" a random chunk of memory at the start of the
module area. I don't expect this to break anything, though.

-Kees

-- 
Kees Cook
Chrome OS Security