From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53353 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752389AbcD1AGm (ORCPT ); Wed, 27 Apr 2016 20:06:42 -0400 Subject: Patch "usb: xhci: fix wild pointers in xhci_mem_cleanup" has been added to the 4.4-stable tree To: baolu.lu@linux.intel.com, gregkh@linuxfoundation.org, lpc.li@hisilicon.com, mathias.nyman@linux.intel.com Cc: , From: Date: Wed, 27 Apr 2016 17:06:28 -0700 Message-ID: <146180198830179@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 usb: xhci: fix wild pointers in xhci_mem_cleanup 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: usb-xhci-fix-wild-pointers-in-xhci_mem_cleanup.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 71504062a7c34838c3fccd92c447f399d3cb5797 Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Fri, 8 Apr 2016 16:25:09 +0300 Subject: usb: xhci: fix wild pointers in xhci_mem_cleanup From: Lu Baolu commit 71504062a7c34838c3fccd92c447f399d3cb5797 upstream. This patch fixes some wild pointers produced by xhci_mem_cleanup. These wild pointers will cause system crash if xhci_mem_cleanup() is called twice. Reported-and-tested-by: Pengcheng Li Signed-off-by: Lu Baolu Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mem.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1875,6 +1875,12 @@ no_bw: kfree(xhci->rh_bw); kfree(xhci->ext_caps); + xhci->usb2_ports = NULL; + xhci->usb3_ports = NULL; + xhci->port_array = NULL; + xhci->rh_bw = NULL; + xhci->ext_caps = NULL; + xhci->page_size = 0; xhci->page_shift = 0; xhci->bus_state[0].bus_suspended = 0; Patches currently in stable-queue which might be from baolu.lu@linux.intel.com are queue-4.4/usb-xhci-fix-wild-pointers-in-xhci_mem_cleanup.patch