/usr/share/man/man3/umad_release_ca.3.gz is in libibumad-dev 1.3.10.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/umad_get_ca.3.gz
/usr/share/man/man3/umad_get_ca.3.gz