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[Bug 1718222] Re: CVE-2017-9375 fix cause qemu crash

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Marc Deslauriers <marc.deslauriers@xxxxxxxxxxxxx>
Date: Wed, 20 Sep 2017 11:26:21 -0000
Reply-to: Bug 1718222 <1718222@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: qemu (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: qemu (Ubuntu Artful)
   Importance: Undecided
       Status: New

** Also affects: qemu (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: qemu (Ubuntu Zesty)
   Importance: Undecided
       Status: New

** Changed in: qemu (Ubuntu Artful)
       Status: New => Fix Released

** Changed in: qemu (Ubuntu Trusty)
       Status: New => Confirmed

** Changed in: qemu (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: qemu (Ubuntu Trusty)
       Status: Confirmed => In Progress

** Changed in: qemu (Ubuntu Zesty)
       Status: New => In Progress

** Changed in: qemu (Ubuntu Trusty)
     Assignee: (unassigned) => Marc Deslauriers (mdeslaur)

** Changed in: qemu (Ubuntu Xenial)
     Assignee: (unassigned) => Marc Deslauriers (mdeslaur)

** Changed in: qemu (Ubuntu Zesty)
     Assignee: (unassigned) => Marc Deslauriers (mdeslaur)

** Changed in: qemu (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: qemu (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: qemu (Ubuntu Zesty)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1718222

Title:
  CVE-2017-9375 fix cause qemu crash

Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Trusty:
  In Progress
Status in qemu source package in Xenial:
  In Progress
Status in qemu source package in Zesty:
  In Progress
Status in qemu source package in Artful:
  Fix Released
Status in qemu package in Debian:
  Fix Released

Bug description:
  CVE-2017-9375 fix cause qemu crash on Ubuntu 17.04 if USB 3 controller
  is selected in virtual machine properties.

  To reproduce this issue:
  1. Install Ubuntu 17.04
  2. Install package ubuntu-virt
  3. Create virtual machine with USB 3 controller
  4. Try to start this virtual machine

  Error message from libvirt log:
  qemu-system-x86_64: /build/qemu-g5EXBU/qemu-2.8+dfsg/hw/usb/hcd-xhci.c:2169: xhci_kick_epctx: Assertion `!epctx->kick_active' failed.

  Workaround:
  Switch controller type to USB 2, but AFAIK this is not applicable if user need to passthrough many USB devices to guest, or if user actually need USB 3 speed.

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