There were a range of packages installed at the same time - I'm assuming it's the QEMU/KVM ones which have caused the issue, but for the sake of completeness the upgrades which happened were as follows:
snap-confine:amd64 (1.0.38-0ubuntu0.16.04.8, 1.0.38-0ubuntu0.16.04.10), qemu-system-x86:amd64 (1:2.5+dfsg-5ubuntu10.4, 1:2.5+dfsg-5ubuntu10.5), libklibc:amd64 (2.0.4-8ubuntu1.16.04.1, 2.0.4-8ubuntu1.16.04.2), libvirt-bin:amd64 (1.3.1-1ubuntu10.2, 1.3.1-1ubuntu10.3), qemu-utils:amd64 (1:2.5+dfsg-5ubuntu10.4, 1:2.5+dfsg-5ubuntu10.5), ubuntu-core-launcher:amd64 (1.0.38-0ubuntu0.16.04.8, 1.0.38-0ubuntu0.16.04.10), qemu-kvm:amd64 (1:2.5+dfsg-5ubuntu10.4, 1:2.5+dfsg-5ubuntu10.5), libvirt0:amd64 (1.3.1-1ubuntu10.2, 1.3.1-1ubuntu10.3), qemu-block-extra:amd64 (1:2.5+dfsg-5ubuntu10.4, 1:2.5+dfsg-5ubuntu10.5), klibc-utils:amd64 (2.0.4-8ubuntu1.16.04.1, 2.0.4-8ubuntu1.16.04.2), qemu-system-common:amd64 (1:2.5+dfsg-5ubuntu10.4, 1:2.5+dfsg-5ubuntu10.5) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1630642 Title: bridge mode network no longer functions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1630642/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
