mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-02-15 04:42:02 +00:00
37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
From 98ef1cbcfefd048e73d238aa5ffcf307b14d4869 Mon Sep 17 00:00:00 2001
|
|
From: Electron752 <mzoran@crowfest.net>
|
|
Date: Sat, 14 Jan 2017 02:54:26 -0800
|
|
Subject: [PATCH 105/277] ARM64: Enable Kernel Address Space Randomization
|
|
(#1792)
|
|
|
|
Randomization allows the mapping between virtual addresses and physical
|
|
address to be different on each boot. This makes it more difficult
|
|
to exploit security vulnerabilities that require knowledge of fixed
|
|
hardware addresses.
|
|
|
|
The firmware generates a 8 byte random number during bootup and stores
|
|
it in the device tree under chosen/kaslr-seed. This number is used
|
|
to randomize the address mapping.
|
|
|
|
This change enables this feature in the build configuration for ARM64.
|
|
|
|
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
|
|
---
|
|
arch/arm64/configs/bcmrpi3_defconfig | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
diff --git a/arch/arm64/configs/bcmrpi3_defconfig b/arch/arm64/configs/bcmrpi3_defconfig
|
|
index dac962ca1634..aae33b4b3c3e 100644
|
|
--- a/arch/arm64/configs/bcmrpi3_defconfig
|
|
+++ b/arch/arm64/configs/bcmrpi3_defconfig
|
|
@@ -53,6 +53,7 @@ CONFIG_ARMV8_DEPRECATED=y
|
|
CONFIG_SWP_EMULATION=y
|
|
CONFIG_CP15_BARRIER_EMULATION=y
|
|
CONFIG_SETEND_EMULATION=y
|
|
+CONFIG_RANDOMIZE_BASE=y
|
|
CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
|
|
CONFIG_BINFMT_MISC=y
|
|
CONFIG_COMPAT=y
|
|
--
|
|
2.16.1
|
|
|