linux-kernel - [GIT PULL] core kernel fix

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Date:   Fri, 12 May 2017 09:27:16 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [GIT PULL] core kernel fix

Linus,

Please pull the latest core-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-for-linus

   # HEAD: 5ea30e4e58040cfd6434c2f33dc3ea76e2c15b05 stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms

A single fix/enhancement to increase stackprotector canary randomness on 64-bit 
kernels with very little cost.

 Thanks,

	Ingo

------------------>
Daniel Micay (1):
      stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms


 kernel/fork.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 3a4343cdfe90..d681f8f10d2d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -536,7 +536,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
 	set_task_stack_end_magic(tsk);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
-	tsk->stack_canary = get_random_int();
+	tsk->stack_canary = get_random_long();
 #endif
 
 	/*