This is a note to let you know that I've just added the patch titled

x86/spectre: Fix an error message

to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: x86-spectre-fix-an-error-message.patch and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 9de29eac8d2189424d81c0d840cd0469aa3d41c8 Mon Sep 17 00:00:00 2001

From: Dan Carpenter dan.carpenter@oracle.com Date: Wed, 14 Feb 2018 10:14:17 +0300 Subject: x86/spectre: Fix an error message

From: Dan Carpenter dan.carpenter@oracle.com

commit 9de29eac8d2189424d81c0d840cd0469aa3d41c8 upstream.

If i == ARRAY_SIZE(mitigation_options) then we accidentally print garbage from one space beyond the end of the mitigation_options[] array.

Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Cc: Andy Lutomirski luto@kernel.org Cc: Borislav Petkov bp@suse.de Cc: David Woodhouse dwmw@amazon.co.uk Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: KarimAllah Ahmed karahmed@amazon.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: kernel-janitors@vger.kernel.org Fixes: 9005c6834c0f ("x86/spectre: Simplify spectre_v2 command line parsing") Link: http://lkml.kernel.org/r/20180214071416.GA26677@mwanda Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/x86/kernel/cpu/bugs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -174,7 +174,7 @@ static enum spectre_v2_mitigation_cmd __ }

if (i >= ARRAY_SIZE(mitigation_options)) { - pr_err("unknown option (%s). Switching to AUTO select\n", mitigation_options[i].option); + pr_err("unknown option (%s). Switching to AUTO select\n", arg); return SPECTRE_V2_CMD_AUTO; } }

Patches currently in stable-queue which might be from dan.carpenter@oracle.com are

queue-4.15/x86-spectre-fix-an-error-message.patch