This file is indexed.

/usr/lib/x86_64-linux-gnu/libibnetdisc.so.5 is in libibnetdisc5 1.6.4-3+b1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libibnetdisc.so.5.3.0