On 7/24/19 7:11 PM, Luis Chamberlain wrote:
On Wed, Jul 24, 2019 at 01:58:41AM -0400, Alexandre Ghiti wrote:
diff --git a/mm/util.c b/mm/util.c
index 0781e5575cb3..16f1e56e2996 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -321,7 +321,15 @@ unsigned long randomize_stack_top(unsigned long stack_top)
On Wed, Jul 24, 2019 at 01:58:41AM -0400, Alexandre Ghiti wrote:
> diff --git a/mm/util.c b/mm/util.c
> index 0781e5575cb3..16f1e56e2996 100644
> --- a/mm/util.c
> +++ b/mm/util.c
> @@ -321,7 +321,15 @@ unsigned long randomize_stack_top(unsigned long
> stack_top)
> }
>
> #ifdef
This commits selects ARCH_HAS_ELF_RANDOMIZE when an arch uses the generic
topdown mmap layout functions so that this security feature is on by
default.
Note that this commit also removes the possibility for arm64 to have elf
randomization and no MMU: without MMU, the security added by
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