I have the same issue. I also had it with previous version of ubuntu.
It is a problem with Berkley Packet Filter handling.
if you launch chromium with --disable-seccomp-filter-sandbox it works but this absolutely not a good solution because It is not acceptable to lower the security of your webbrowser to have an antivirus working. It has also the same issue with SRWare Iron (which is a cleaner version of chromium with even less user trackers).
Of course if you remove ESET 4.0.81 all work again...
Bug Chromium Ubuntu 14.04
in ESET NOD32 Antivirus for Linux Desktop
Posted
I have the same issue. I also had it with previous version of ubuntu.
It is a problem with Berkley Packet Filter handling.
if you launch chromium with --disable-seccomp-filter-sandbox it works but this absolutely not a good solution because It is not acceptable to lower the security of your webbrowser to have an antivirus working. It has also the same issue with SRWare Iron (which is a cleaner version of chromium with even less user trackers).
Of course if you remove ESET 4.0.81 all work again...