4.4.0-108.131) is not available, but a newer one is (4.4.0-142.168). We redirected you there.
/usr/lib/linux-tools/4.4.0-64-lowlatency/usbip is in linux-tools-4.4.0-64-lowlatency 4.4.0-64.85.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.4.0-64-lowlatency/../../linux-tools-4.4.0-64/usbip