Todays update of libnl-3-200 to 3.2.21-1ubuntu1 broke networkmanager

[Graham Wilson]

On 14.04 LTS,
the long-standing issue described in bug report 1581535 (libnl / networkmanager) seems
to have appeared in the main update stream as a result of an update of libnl.
(libnl-3-200, libnl-route-3, libnl-genl-3) from version 3.2.21-1 to 3.2.21-1ubuntu1.
I do NOT have trusty-proposed updates enabled.
I am currently running network-manager 0.9.8.8-0ubuntu7.2

After the update - no wired or wireless network connections.

After manually configuring the wired connection, I successfully managed to downgrade the libnl
changes using
sudo apt-get install libnl-3-200=3.2.21-1 libnl-route-3-200=3.2.21-1 libnl-genl-3-200=3.2.21-1
and restored normal network connectivity for both wired and wireless.
(I did the downgrade after some help from our IT guy to restore my wired connection manually, so I'm not 100% sure whether the cache would have had the necessary files to allow doing this downgrade with no internet connection.)

It seems to me that there needs to be a fix for both packages in the standard release.

How do I update networkmanager? Or are there plans to ship that with the normal updates?

   thanks for your help.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7.2
ProcVersionSignature: Ubuntu 3.13.0-86.130-generic 3.13.11-ckt39
Uname: Linux 3.13.0-86-generic x86_64
NonfreeKernelModules: openafs wl
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Fri May 13 16:59:26 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
 #auto eth0
 #iface eth0 inet dhcp
InstallationDate: Installed on 2014-09-20 (601 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IpRoute:
 default via 129.237.103.254 dev eth0 proto static
 129.237.96.0/21 dev eth0 proto kernel scope link src 129.237.98.96 metric 1
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 wlan0 802-11-wireless unavailable /org/freedesktop/NetworkManager/Devices/1
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled disabled disabled enabled disabled

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.