--- /dev/null
+From bc67a9f0ba89051916f192895317a0b5a431ad7e Mon Sep 17 00:00:00 2001
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Date: Sat, 27 May 2017 12:09:37 +0200
+Subject: Revert "stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms"
+
+From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+This reverts commit 609a3e81550b0b4ea87197b0f59455a7bcff975a which is
+commit 5ea30e4e58040cfd6434c2f33dc3ea76e2c15b05 upstream.
+
+It shouldn't have been backported to 3.18, as we do not have
+get_random_long() in that kernel tree.
+
+Reported-by: Philip Müller <philm@manjaro.org>
+Cc: Daniel Micay <danielmicay@gmail.com>
+Cc: Arjan van de Ven <arjan@linux.intel.com>
+Cc: Rik van Riel <riel@redhat.com>
+Cc: Kees Cook <keescook@chromium.org>
+Cc: Arjan van Ven <arjan@linux.intel.com>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Thomas Gleixner <tglx@linutronix.de>
+Cc: kernel-hardening@lists.openwall.com
+Cc: Ingo Molnar <mingo@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ kernel/fork.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -338,7 +338,7 @@ static struct task_struct *dup_task_stru
+ set_task_stack_end_magic(tsk);
+
+ #ifdef CONFIG_CC_STACKPROTECTOR
+- tsk->stack_canary = get_random_long();
++ tsk->stack_canary = get_random_int();
+ #endif
+
+ /*