I hope you can resolve/ revert this ASAP as it brings network down and finding information on how to fix it becomes very complicated.
Anyway another solution to revert to the working packages is: if you have an Ubuntu USB stick somewhere 1. Boot "try out Ubuntu" 2. mkdir installation 3. sudo mount /dev/sdXX installation # where sdXX is your ubuntu root partition 4. sudo chroot installation 5. apt-get install libnl-3-200=3.2.21-1 libnl-genl-3-200=3.2.21-1 libnl-route-3-200=3.2.21-1 this saves you manually downloading and copying the packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1539513 Title: networkmanager segfaults with 3.2.21-1ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1539513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs