Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1669919

[PATCH 1/7] efi: Avoid fortify checks in EFI stub

From Kees Cook <keescook@chromium.org>
Newsgroups linux.kernel
Subject [PATCH 1/7] efi: Avoid fortify checks in EFI stub
Date 2017-06-19 22:30 +0200
Message-ID <tUbt9-7sP-33@gated-at.bofh.it> (permalink)
References <tUbt8-7sP-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


This avoids CONFIG_FORTIFY_SOURCE from being enabled during the EFI stub
build, as adding a panic() implementation may not work well. This can be
adjusted in the future.

Suggested-by: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---
 drivers/firmware/efi/libstub/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index f7425960f6a5..37e24f525162 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -17,6 +17,7 @@ cflags-$(CONFIG_ARM)		:= $(subst -pg,,$(KBUILD_CFLAGS)) \
 cflags-$(CONFIG_EFI_ARMSTUB)	+= -I$(srctree)/scripts/dtc/libfdt
 
 KBUILD_CFLAGS			:= $(cflags-y) -DDISABLE_BRANCH_PROFILING \
+				   -D__NO_FORTIFY \
 				   $(call cc-option,-ffreestanding) \
 				   $(call cc-option,-fno-stack-protector)
 
-- 
2.7.4

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH 0/7] CONFIG_FORTIFY_SOURCE Kees Cook <keescook@chromium.org> - 2017-06-19 22:30 +0200
  [PATCH 3/7] kexec_file: Adjust declaration of kexec_purgatory Kees Cook <keescook@chromium.org> - 2017-06-19 22:30 +0200
  [PATCH 5/7] powerpc: Don't fortify prom_init Kees Cook <keescook@chromium.org> - 2017-06-19 22:30 +0200
  [PATCH 1/7] efi: Avoid fortify checks in EFI stub Kees Cook <keescook@chromium.org> - 2017-06-19 22:30 +0200
  Re: [PATCH 0/7] CONFIG_FORTIFY_SOURCE Andrew Morton <akpm@linux-foundation.org> - 2017-06-20 00:00 +0200
    Re: [PATCH 0/7] CONFIG_FORTIFY_SOURCE Kees Cook <keescook@chromium.org> - 2017-06-20 00:20 +0200
      Re: [PATCH 0/7] CONFIG_FORTIFY_SOURCE Andrew Morton <akpm@linux-foundation.org> - 2017-06-20 00:40 +0200

csiph-web