/usr/arm-linux-gnueabi/lib/libubsan.so.0 is in libubsan0-armel-cross 6.3.0-18cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/arm-linux-gnueabi/lib/libubsan.so.0.0.0
/usr/arm-linux-gnueabi/lib/libubsan.so.0.0.0