/usr/share/man/man3/ is in libudev-dev 237-3ubuntu10.
This file is owned by root:root, with mode 0o755.
..
/usr/share/man/man3/libudev.3.gz
/usr/share/man/man3/udev_device_get_syspath.3.gz
/usr/share/man/man3/udev_device_has_tag.3.gz
/usr/share/man/man3/udev_device_new_from_syspath.3.gz
/usr/share/man/man3/udev_enumerate_add_match_subsystem.3.gz
/usr/share/man/man3/udev_enumerate_new.3.gz
/usr/share/man/man3/udev_enumerate_scan_devices.3.gz
/usr/share/man/man3/udev_list_entry.3.gz
/usr/share/man/man3/udev_monitor_filter_update.3.gz
/usr/share/man/man3/udev_monitor_new_from_netlink.3.gz
/usr/share/man/man3/udev_monitor_receive_device.3.gz
/usr/share/man/man3/udev_new.3.gz
/usr/share/man/man3/udev_device_get_action.3.gz
/usr/share/man/man3/udev_device_get_devlinks_list_entry.3.gz
/usr/share/man/man3/udev_device_get_devnode.3.gz
/usr/share/man/man3/udev_device_get_devnum.3.gz
/usr/share/man/man3/udev_device_get_devpath.3.gz
/usr/share/man/man3/udev_device_get_devtype.3.gz
/usr/share/man/man3/udev_device_get_driver.3.gz
/usr/share/man/man3/udev_device_get_is_initialized.3.gz
/usr/share/man/man3/udev_device_get_parent.3.gz
/usr/share/man/man3/udev_device_get_parent_with_subsystem_devtype.3.gz
/usr/share/man/man3/udev_device_get_properties_list_entry.3.gz
/usr/share/man/man3/udev_device_get_property_value.3.gz
/usr/share/man/man3/udev_device_get_subsystem.3.gz
/usr/share/man/man3/udev_device_get_sysattr_list_entry.3.gz
/usr/share/man/man3/udev_device_get_sysattr_value.3.gz
/usr/share/man/man3/udev_device_get_sysname.3.gz
/usr/share/man/man3/udev_device_get_sysnum.3.gz
/usr/share/man/man3/udev_device_get_tags_list_entry.3.gz
/usr/share/man/man3/udev_device_get_udev.3.gz
/usr/share/man/man3/udev_device_new_from_device_id.3.gz
/usr/share/man/man3/udev_device_new_from_devnum.3.gz
/usr/share/man/man3/udev_device_new_from_environment.3.gz
/usr/share/man/man3/udev_device_new_from_subsystem_sysname.3.gz
/usr/share/man/man3/udev_device_ref.3.gz
/usr/share/man/man3/udev_device_set_sysattr_value.3.gz
/usr/share/man/man3/udev_device_unref.3.gz
/usr/share/man/man3/udev_enumerate_add_match_is_initialized.3.gz
/usr/share/man/man3/udev_enumerate_add_match_parent.3.gz
/usr/share/man/man3/udev_enumerate_add_match_property.3.gz
/usr/share/man/man3/udev_enumerate_add_match_sysattr.3.gz
/usr/share/man/man3/udev_enumerate_add_match_sysname.3.gz
/usr/share/man/man3/udev_enumerate_add_match_tag.3.gz
/usr/share/man/man3/udev_enumerate_add_nomatch_subsystem.3.gz
/usr/share/man/man3/udev_enumerate_add_nomatch_sysattr.3.gz
/usr/share/man/man3/udev_enumerate_add_syspath.3.gz
/usr/share/man/man3/udev_enumerate_get_list_entry.3.gz
/usr/share/man/man3/udev_enumerate_get_udev.3.gz
/usr/share/man/man3/udev_enumerate_ref.3.gz
/usr/share/man/man3/udev_enumerate_scan_subsystems.3.gz
/usr/share/man/man3/udev_enumerate_unref.3.gz
/usr/share/man/man3/udev_list_entry_get_by_name.3.gz
/usr/share/man/man3/udev_list_entry_get_name.3.gz
/usr/share/man/man3/udev_list_entry_get_next.3.gz
/usr/share/man/man3/udev_list_entry_get_value.3.gz
/usr/share/man/man3/udev_monitor_enable_receiving.3.gz
/usr/share/man/man3/udev_monitor_filter_add_match_subsystem_devtype.3.gz
/usr/share/man/man3/udev_monitor_filter_add_match_tag.3.gz
/usr/share/man/man3/udev_monitor_filter_remove.3.gz
/usr/share/man/man3/udev_monitor_get_fd.3.gz
/usr/share/man/man3/udev_monitor_get_udev.3.gz
/usr/share/man/man3/udev_monitor_ref.3.gz
/usr/share/man/man3/udev_monitor_set_receive_buffer_size.3.gz
/usr/share/man/man3/udev_monitor_unref.3.gz
/usr/share/man/man3/udev_ref.3.gz
/usr/share/man/man3/udev_unref.3.gz