From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail177-1.suw61.mandrillapp.com ([198.2.177.1]:13439 "EHLO mail177-1.suw61.mandrillapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751639AbcCASyT (ORCPT ); Tue, 1 Mar 2016 13:54:19 -0500 Received: from pmta06.mandrill.prod.suw01.rsglab.com (127.0.0.1) by mail177-1.suw61.mandrillapp.com id hqnilm22rtkv for ; Tue, 1 Mar 2016 18:54:18 +0000 (envelope-from ) From: Subject: Patch "coresight: checking for NULL string in coresight_name_match()" has been added to the 4.4-stable tree To: , , Cc: , Message-Id: <145685845613947@kroah.com> Date: Tue, 01 Mar 2016 18:54:18 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled coresight: checking for NULL string in coresight_name_match() 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: coresight-checking-for-null-string-in-coresight_name_match.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 fadf3a44e974b030e7145218ad1ab25e3ef91738 Mon Sep 17 00:00:00 2001 From: Mathieu Poirier Date: Thu, 17 Dec 2015 08:47:02 -0700 Subject: coresight: checking for NULL string in coresight_name_match() From: Mathieu Poirier commit fadf3a44e974b030e7145218ad1ab25e3ef91738 upstream. Connection child names associated to ports can sometimes be NULL, which is the case when booting a system on QEMU or when the Coresight power domain isn't switched on. This patch is adding a check to make sure a NULL string isn't fed to strcmp(), something that avoid crashing the system. Reported-by: Tyler Baker Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/coresight/coresight.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -548,7 +548,7 @@ static int coresight_name_match(struct d to_match = data; i_csdev = to_coresight_device(dev); - if (!strcmp(to_match, dev_name(&i_csdev->dev))) + if (to_match && !strcmp(to_match, dev_name(&i_csdev->dev))) return 1; return 0; Patches currently in stable-queue which might be from mathieu.poirier@linaro.org are queue-4.4/coresight-checking-for-null-string-in-coresight_name_match.patch