[Bug 1823295] Re: openvswitch-switch package upgrades restart daemons multiple times

[Launchpad Bug Tracker]

This bug was fixed in the package openvswitch - 2.9.7-0ubuntu0.18.04.2

---------------
openvswitch (2.9.7-0ubuntu0.18.04.2) bionic-security; urgency=medium

  * SECURITY UPDATE: buffer overflow decoding malformed packets in lldp
    - debian/patches/CVE-2015-8011.patch: check lengths in lib/lldp/lldp.c.
    - CVE-2015-8011
  * SECURITY UPDATE: Externally triggered memory leak in lldp
    - debian/patches/CVE-2020-27827.patch: properly free memory in
      lib/lldp/lldp.c.
    - CVE-2020-27827

 -- Marc Deslauriers <marc.deslauriers at ubuntu.com>  Fri, 08 Jan 2021
07:30:25 -0500

** Changed in: openvswitch (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2015-8011

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-27827

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https://bugs.launchpad.net/bugs/1823295

Title:
  openvswitch-switch package upgrades restart daemons multiple times

Status in openvswitch package in Ubuntu:
  Fix Released
Status in openvswitch source package in Bionic:
  Fix Released
Status in openvswitch source package in Cosmic:
  Won't Fix
Status in openvswitch source package in Disco:
  Fix Released

Bug description:
  [Impact]
  OVS daemons are restarted multiple times on package upgrade resulting in a protracted period of network pause for OVS management network objects due to multiple restarts.

  [Test Case]
  Upgrade openvswitch-switch package/dpkg-reconfigure openvswitch-swithc
  Examine systemd journal - ovsdb-server and ovs-vswitchd get restarted multiple times in quick session

  [Regression Potential]
  Low - Ubuntu has had this fix in packaging since Disco with no reported adverse effects.

  [Original Bug Report]
  When the openvswitch-switch package is upgraded, the various daemons get restarted multiple times (see maintainer script below):

  # Automatically added by dh_systemd_start/12ubuntu1
  if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
      if [ -d /run/systemd/system ]; then
          systemctl --system daemon-reload >/dev/null || true
          if [ -n "$2" ]; then
              _dh_action=restart
          else
              _dh_action=start
          fi
          deb-systemd-invoke $_dh_action 'ovs-vswitchd.service' 'ovsdb-server.service' >/dev/null || true
      fi
  fi
  # End automatically added section
  # Automatically added by dh_systemd_start/12ubuntu1
  if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
      if [ -d /run/systemd/system ]; then
          systemctl --system daemon-reload >/dev/null || true
          if [ -n "$2" ]; then
              deb-systemd-invoke try-restart 'ovs-vswitchd.service' 'ovsdb-server.service' >/dev/null || true
          fi
      fi
  fi
  # End automatically added section
  # Automatically added by dh_systemd_start/12ubuntu1
  if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
      if [ -d /run/systemd/system ]; then
          systemctl --system daemon-reload >/dev/null || true
          if [ -n "$2" ]; then
              deb-systemd-invoke try-restart 'ovs-vswitchd.service' 'ovsdb-server.service' >/dev/null || true
          fi
      fi
  fi
  # End automatically added section
  # Automatically added by dh_installinit/12ubuntu1
  if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
      if [ -x "/etc/init.d/openvswitch-switch" ]; then
          update-rc.d openvswitch-switch defaults >/dev/null
          if [ -n "$2" ]; then
              _dh_action=restart
          else
              _dh_action=start
          fi
          invoke-rc.d openvswitch-switch $_dh_action || exit 1
      fi
  fi
  # End automatically added section

  This results in a extended period of network loss for OVS ports -
  really the only one that is required is the restart of openvswitch-
  switch (which covers the other two as depends anyway).

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: openvswitch-switch 2.11.0-0ubuntu1
  ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
  Uname: Linux 5.0.0-8-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.10-0ubuntu25
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr  5 08:24:32 2019
  InstallationDate: Installed on 2018-10-18 (168 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  SourcePackage: openvswitch
  UpgradeStatus: Upgraded to disco on 2019-03-17 (18 days ago)

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