/usr/lib/x86_64-linux-gnu/libasound.so.2 is in liboss4-salsa-asound2 4.2-build2010-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/liboss4-salsa.so.2
/usr/lib/x86_64-linux-gnu/liboss4-salsa.so.2