/usr/share/doc/texlive-doc/info/dir is in texlive-base 2009-15.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/texlive-doc/info/../../texlive-base/info/dir
/usr/share/doc/texlive-doc/info/../../texlive-base/info/dir