/usr/share/doc/linux-cloud-tools-4.4.0-75-generic/changelog.Debian.gz is in linux-cloud-tools-4.4.0-75-generic 4.4.0-75.96~14.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-4.4.0-75-generic/../linux-lts-xenial-cloud-tools-4.4.0-75/changelog.Debian.gz