From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56532 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752516AbdHDVpo (ORCPT ); Fri, 4 Aug 2017 17:45:44 -0400 Subject: Patch "x86/mce/AMD: Make the init code more robust" has been added to the 4.4-stable tree To: tglx@linutronix.de, alexander.levin@verizon.com, boris.ostrovsky@oracle.com, gregkh@linuxfoundation.org, markus@trippelsdorf.de, torvalds@linux-foundation.org Cc: , From: Date: Fri, 04 Aug 2017 14:45:32 -0700 Message-ID: <150188313216849@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled x86/mce/AMD: Make the init code more robust to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-mce-amd-make-the-init-code-more-robust.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Fri Aug 4 13:34:53 PDT 2017 From: Thomas Gleixner Date: Mon, 26 Dec 2016 22:58:20 +0100 Subject: x86/mce/AMD: Make the init code more robust From: Thomas Gleixner [ Upstream commit 0dad3a3014a0b9e72521ff44f17e0054f43dcdea ] If mce_device_init() fails then the mce device pointer is NULL and the AMD mce code happily dereferences it. Add a sanity check. Reported-by: Markus Trippelsdorf Reported-by: Boris Ostrovsky Signed-off-by: Thomas Gleixner Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/mcheck/mce_amd.c | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -682,6 +682,9 @@ static int threshold_create_bank(unsigne const char *name = th_names[bank]; int err = 0; + if (!dev) + return -ENODEV; + if (is_shared_bank(bank)) { nb = node_to_amd_nb(amd_get_nb_id(cpu)); Patches currently in stable-queue which might be from tglx@linutronix.de are queue-4.4/sched-cputime-fix-prev-steal-time-accouting-during-cpu-hotplug.patch queue-4.4/sched-cgroup-move-sched_online_group-back-into-css_online-to-fix-crash.patch queue-4.4/x86-mce-amd-make-the-init-code-more-robust.patch