On Sat, Mar 7, 2015 at 1:05 PM, Borislav Petkov <b...@suse.de> wrote:
> On Fri, Mar 06, 2015 at 11:53:22AM -0800, Yinghai Lu wrote:
> ---
> Commit
>
> f47233c2d34f ("x86/mm/ASLR: Propagate base load address calculation")
>
> started passing KASLR status to kernel proper, but it uses a physical
> address as the vaule, leading to parsing bogus KASLR status in kernel
> proper.
>
> The setup_data linked list and thus the element which contains
> kaslr_enabled is chained together using physical addresses. At the time
> when we access it in the kernel proper, we're already running with
> paging enabled and therefore must access it through its virtual address.
>
> This patch changes the code to use early_memmap() and access the value.
> ---
Good to me.
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