From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56578 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756976AbbKFGi7 (ORCPT ); Fri, 6 Nov 2015 01:38:59 -0500 Subject: Patch "PCI: Prevent out of bounds access in numa_node override" has been added to the 4.1-stable tree To: sasha.levin@oracle.com, bhelgaas@google.com, gregkh@linuxfoundation.org Cc: , From: Date: Thu, 05 Nov 2015 22:38:54 -0800 Message-ID: <144679193427217@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 PCI: Prevent out of bounds access in numa_node override to the 4.1-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: pci-prevent-out-of-bounds-access-in-numa_node-override.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 1266963170f576d4d08e6310b6963e26d3ff9d1e Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Wed, 7 Oct 2015 11:03:28 -0500 Subject: PCI: Prevent out of bounds access in numa_node override From: Sasha Levin commit 1266963170f576d4d08e6310b6963e26d3ff9d1e upstream. 63692df103e9 ("PCI: Allow numa_node override via sysfs") didn't check that the numa node provided by userspace is valid. Passing a node number too high would attempt to access invalid memory and trigger a kernel panic. Fixes: 63692df103e9 ("PCI: Allow numa_node override via sysfs") Signed-off-by: Sasha Levin Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -216,7 +216,7 @@ static ssize_t numa_node_store(struct de if (ret) return ret; - if (!node_online(node)) + if (node >= MAX_NUMNODES || !node_online(node)) return -EINVAL; add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK); Patches currently in stable-queue which might be from sasha.levin@oracle.com are queue-4.1/pci-prevent-out-of-bounds-access-in-numa_node-override.patch