diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-04-18 11:08:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-04-18 11:48:13 +0200 |
| commit | 6807c84652b0b7e2e198e50a9ad47ef41b236e59 (patch) | |
| tree | 0a8d8573a6da216f10cae8bdb2c81625f8bf689e /arch/x86/Kconfig | |
| parent | f51b17c8d90f85456579c3192ab59ee031835634 (diff) | |
x86: Enable KASLR by default
KASLR is mature (and important) enough to be enabled by default on x86.
Also enable it by default in the defconfigs.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: dan.j.williams@intel.com
Cc: dave.jiang@intel.com
Cc: dyoung@redhat.com
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index cc98d5a294ee..dc12dddb40b2 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1966,7 +1966,7 @@ config RELOCATABLE config RANDOMIZE_BASE bool "Randomize the address of the kernel image (KASLR)" depends on RELOCATABLE - default n + default y ---help--- In support of Kernel Address Space Layout Randomization (KASLR), this randomizes the physical address at which the kernel image @@ -1996,7 +1996,7 @@ config RANDOMIZE_BASE theoretically possible, but the implementations are further limited due to memory layouts. - If unsure, say N. + If unsure, say Y. # Relocation on x86 needs some additional build support config X86_NEED_RELOCS @@ -2045,7 +2045,7 @@ config RANDOMIZE_MEMORY configuration have in average 30,000 different possible virtual addresses for each memory section. - If unsure, say N. + If unsure, say Y. config RANDOMIZE_MEMORY_PHYSICAL_PADDING hex "Physical memory mapping padding" if EXPERT |