/usr/share/ is in libdspam7-drv-mysql 3.10.1+dfsg-4ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/libdspam7-drv-mysql/
/usr/share/doc/libdspam7-drv-mysql/copyright
/usr/share/doc/libdspam7-drv-mysql/sql/
/usr/share/doc/libdspam7-drv-mysql/sql/mysql_objects-4.1.sql
/usr/share/doc/libdspam7-drv-mysql/sql/virtual_user_aliases.sql
/usr/share/doc/libdspam7-drv-mysql/sql/purge-4.1.sql
/usr/share/doc/libdspam7-drv-mysql/sql/virtual_users.sql
/usr/share/doc/libdspam7-drv-mysql/mysql_drv.txt.gz
/usr/share/dbconfig-common/
/usr/share/dbconfig-common/data/
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/install/
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/install/mysql
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/upgrade/
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/upgrade/mysql/
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/upgrade/mysql/3.9.1
/usr/share/dbconfig-common/data/libdspam7-drv-mysql/upgrade/mysql/3.8
/usr/share/doc/libdspam7-drv-mysql/changelog.Debian.gz