/usr/lib/x86_64-linux-gnu/liblzma.so.5 is in liblzma5 5.1.1alpha+20110809-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/liblzma.so.5.0.0
/usr/lib/x86_64-linux-gnu/liblzma.so.5.0.0