Messages in this thread Patch in this message | | | Date | Wed, 27 Jul 2016 10:09:17 +0200 | From | Borislav Petkov <> | Subject | [PATCH -v2 1/2] x86/asm: Add __PAGE_OFFSET_BASE define on 32-bit |
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From: Borislav Petkov <bp@suse.de>
... in order to avoid ifdeffery in code computing the ASLR randomization offset.
Suggested-by: Kees Cook <keescook@chromium.org> Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/include/asm/page_32_types.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h index 3a52ee0e726d..3bae4969ac65 100644 --- a/arch/x86/include/asm/page_32_types.h +++ b/arch/x86/include/asm/page_32_types.h @@ -13,7 +13,8 @@ * If you want more physical memory than this then see the CONFIG_HIGHMEM4G * and CONFIG_HIGHMEM64G options in the kernel configuration. */ -#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) +#define __PAGE_OFFSET_BASE _AC(CONFIG_PAGE_OFFSET, UL) +#define __PAGE_OFFSET __PAGE_OFFSET_BASE #define __START_KERNEL_map __PAGE_OFFSET -- 2.8.4
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply.
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