On 03/11/2014 02:33 PM, Andy Lutomirski wrote:
> diff --git a/arch/x86/include/asm/pgtable_types.h
> b/arch/x86/include/asm/pgtable_types.h
> index 1aa9ccd..943f166 100644
> --- a/arch/x86/include/asm/pgtable_types.h
> +++ b/arch/x86/include/asm/pgtable_types.h
> @@ -214,13 +214,8 @@
> #ifdef CON
This removes the compat vdso from the fixmap and instead relocates
it each time it's mapped. It also documents the reason for the
compat vDSO.
Before this patch, using the compat vDSO partially defeated ASLR.
With this patch, ASLR is left alone, but starting a 32-bit process
with the compat vDSO
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