x86: fix the stackprotector canary of the boot CPU

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 5107cb2..cce47f7 100644 (file)
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -16,6 +16,7 @@
 
 #include <stdarg.h>
 
+#include <linux/stackprotector.h>
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/sched.h>

diff --git a/include/linux/stackprotector.h b/include/linux/stackprotector.h
index 422e71a..6f3e54c 100644 (file)
--- a/include/linux/stackprotector.h
+++ b/include/linux/stackprotector.h
@@ -1,6 +1,10 @@
 #ifndef _LINUX_STACKPROTECTOR_H
 #define _LINUX_STACKPROTECTOR_H 1
 
+#include <linux/compiler.h>
+#include <linux/sched.h>
+#include <linux/random.h>
+
 #ifdef CONFIG_CC_STACKPROTECTOR
 # include <asm/stackprotector.h>
 #else

diff --git a/init/main.c b/init/main.c
index a84322c..b44e4eb 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -546,6 +546,12 @@ asmlinkage void __init start_kernel(void)
        unwind_init();
        lockdep_init();
        debug_objects_early_init();
+
+       /*
+        * Set up the the initial canary ASAP:
+        */
+       boot_init_stack_canary();
+
        cgroup_init_early();
 
        local_irq_disable();