/usr/lib/x86_64-linux-gnu/liburcu-cds.so.2 is in liburcu2 0.8.5-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/liburcu-cds.so.2.0.0
/usr/lib/x86_64-linux-gnu/liburcu-cds.so.2.0.0