mcs88_import_export_csv fails with rhel/rocky 8,9

mysqltest: At line 22: query 'LOAD DATA INFILE '$DATADIR/mcs88_100Krows.dat' INTO TABLE t1 FIELDS TERMINATED BY '|';' failed: <Unknown> (29): File '/var/lib/mysql/mcs88_100Krows.dat' not found (Errcode: 13 "Permission denied")

The result from queries just before the failure was:

DROP DATABASE IF EXISTS mcs88_db;

CREATE DATABASE mcs88_db;

USE mcs88_db;

CREATE TABLE t1(col1 INT, col2 INT, col3 CHAR(8)) ENGINE=Columnstore;

LOAD DATA INFILE 'DATADIR/mcs88_100Krows.dat' INTO TABLE t1 FIELDS TERMINATED BY '|';;