diff options
| author | Borislav Petkov | 2021-02-08 16:43:30 +0100 |
|---|---|---|
| committer | Borislav Petkov | 2021-02-09 11:23:47 +0100 |
| commit | 256b92af784d5043eeb7d559b6d5963dcc2ecb10 (patch) | |
| tree | 16799aeb136741b9a47c2565d0f058954618cbb7 | |
| parent | 2ade0d60939bcd54197c133b03b460fe62a4ec47 (diff) | |
x86/build: Disable CET instrumentation in the kernel for 32-bit too
Commit
20bf2b378729 ("x86/build: Disable CET instrumentation in the kernel")
disabled CET instrumentation which gets added by default by the Ubuntu
gcc9 and 10 by default, but did that only for 64-bit builds. It would
still fail when building a 32-bit target. So disable CET for all x86
builds.
Fixes: 20bf2b378729 ("x86/build: Disable CET instrumentation in the kernel")
Reported-by: AC <achirvasub@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: AC <achirvasub@gmail.com>
Link: https://lkml.kernel.org/r/YCCIgMHkzh/xT4ex@arch-chirva.localdomain
| -rw-r--r-- | arch/x86/Makefile | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 5857917f83ee..30920d70b48b 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -50,6 +50,9 @@ export BITS KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow KBUILD_CFLAGS += $(call cc-option,-mno-avx,) +# Intel CET isn't enabled in the kernel +KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none) + ifeq ($(CONFIG_X86_32),y) BITS := 32 UTS_MACHINE := i386 @@ -120,9 +123,6 @@ else KBUILD_CFLAGS += -mno-red-zone KBUILD_CFLAGS += -mcmodel=kernel - - # Intel CET isn't enabled in the kernel - KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none) endif ifdef CONFIG_X86_X32 |