/usr/share/doc/linux-tools-4.4.0-1037-kvm/changelog.Debian.gz is in linux-tools-4.4.0-1037-kvm 4.4.0-1037.43.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-tools-4.4.0-1037-kvm/../linux-kvm-tools-4.4.0-1037/changelog.Debian.gz