/usr/lib/x86_64-linux-gnu/libgnuradio-osmosdr.so is in gr-osmosdr 0.1.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgnuradio-osmosdr.so.0.1.3
/usr/lib/x86_64-linux-gnu/libgnuradio-osmosdr.so.0.1.3