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Re: [PATCH v2] x86/mm: warn on W+x mappings

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* Stephen Smalley <sds@tycho.nsa.gov> wrote:

> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> index 30564e2..f8b1573 100644
> --- a/arch/x86/mm/init_64.c
> +++ b/arch/x86/mm/init_64.c
> @@ -1150,6 +1150,8 @@ void mark_rodata_ro(void)
>  	free_init_pages("unused kernel",
>  			(unsigned long) __va(__pa_symbol(rodata_end)),
>  			(unsigned long) __va(__pa_symbol(_sdata)));
> +
> +	debug_checkwx();

Any reason to not do this on NX capable 32-bit kernels as well?

Thanks,

	Ingo
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[PATCH v2] x86/mm: warn on W+x mappings Stephen Smalley <sds@tycho.nsa.gov> - 2015-10-02 22:30 +0200
  Re: [PATCH v2] x86/mm: warn on W+x mappings Kees Cook <keescook@chromium.org> - 2015-10-02 22:50 +0200
  Re: [PATCH v2] x86/mm: warn on W+x mappings Ingo Molnar <mingo@kernel.org> - 2015-10-03 13:30 +0200
    Re: [PATCH v2] x86/mm: warn on W+x mappings Stephen Smalley <sds@tycho.nsa.gov> - 2015-10-05 21:20 +0200

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