mariadb/mysql-test/main/insert_notembedded.test
Rucha Deodhar ca63e2c627 MDEV-37950: INSERT ... RETURNING exposes columns for which the user lacks
SELECT privilege

Analysis:
When setup_fields() is called, the want_privilege is set to NO_ACL, so
correct priveleges are not checked.
Fix:
Since RETURNING requires SELECT_ACL privelige, when we are setting up
the returning fields for the given query, set want_privilege to SELECT_ACL.
Reset to original value of want_privilege once done.
2025-12-23 18:55:46 +05:30

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-- source include/not_embedded.inc
set local sql_mode="";
set global sql_mode="";
--disable_warnings
drop table if exists t1;
--enable_warnings
# Test for INSERT DELAYED INTO a <view>
# BUG#13683: INSERT DELAYED into a view creates an infinite loop
#
create table t1 (n int);
create view v1 as select * from t1;
--error 1347
insert delayed into v1 values (1);
drop table t1;
drop view v1;
#
# Bug #20989: View '(null).(null)' references invalid table(s)... on
# SQL SECURITY INVOKER
#
# this is really the fact that REPLACE ... SELECT required additional
# INSERT privs (on tables that are part of a view) over the related
# REPLACE, SELECT
#
CREATE DATABASE meow;
connect (root,localhost,root,,meow);
connection root;
CREATE TABLE table_target ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE TABLE table_target2 ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE TABLE table_target3 ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE VIEW view_target2 AS SELECT mexs_id,messzeit FROM table_target2;
CREATE SQL SECURITY INVOKER VIEW view_target3 AS SELECT mexs_id,messzeit FROM table_target3;
CREATE TABLE table_stations ( mexs_id VARCHAR(8), icao VARCHAR(4), country CHAR(2), PRIMARY KEY (mexs_id), UNIQUE KEY icao (icao), KEY country (country), CONSTRAINT stations_ibfk_8 FOREIGN KEY (country) REFERENCES countries (country) ON UPDATE CASCADE);
INSERT INTO table_stations VALUES ('87654321','XXXX','YY');
CREATE TABLE table_countries ( country CHAR(2), iso_short_en VARCHAR(64), PRIMARY KEY (country));
INSERT INTO table_countries VALUES ('YY','Entenhausen');
CREATE ALGORITHM=MERGE SQL SECURITY INVOKER VIEW view_stations AS select table_stations.mexs_id AS mexs_id, table_stations.icao AS icao, table_stations.country AS landescode from (table_stations join table_countries on((table_stations.country = table_countries.country)));
CREATE TABLE table_source ( id varchar(4), datetime TIMESTAMP, PRIMARY KEY (id));
INSERT INTO table_source VALUES ('XXXX','2006-07-12 07:50:00');
GRANT SELECT ON table_source TO user20989@localhost;
GRANT SELECT ON table_countries TO user20989@localhost;
GRANT SELECT ON table_stations TO user20989@localhost;
GRANT SELECT ON view_stations TO user20989@localhost;
GRANT SELECT ON table_target TO user20989@localhost;
GRANT SELECT ON table_target2 TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON view_target3 TO user20989@localhost;
connect (user20989,localhost,user20989,,meow);
connection user20989;
--error 1142
REPLACE INTO table_target
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN table_target AS old
USING (mexs_id);
--error 1142
REPLACE INTO view_target2
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
--error 1356
REPLACE INTO view_target3
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target3 AS old
USING (mexs_id);
connection root;
disconnect user20989;
GRANT INSERT,DELETE ON table_target TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON view_target2 TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON table_target3 TO user20989@localhost;
connect (user20989,localhost,user20989,,meow);
connection user20989;
REPLACE INTO table_target
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN table_target AS old
USING (mexs_id);
--error 1142
REPLACE INTO table_target2 VALUES ('00X45Y78','2006-07-12 07:50:00');
REPLACE INTO view_target2 VALUES ('12X45Y78','2006-07-12 07:50:00');
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
REPLACE INTO view_target2
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
REPLACE INTO view_target3
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target3 AS old
USING (mexs_id);
connection root;
disconnect user20989;
SELECT * FROM table_target;
SELECT * FROM view_target2;
SELECT * FROM view_target3;
DROP VIEW view_stations;
DROP TABLE table_source;
DROP TABLE table_countries;
DROP TABLE table_stations;
DROP TABLE table_target;
DROP TABLE table_target2;
DROP TABLE table_target3;
DROP VIEW view_target2;
DROP VIEW view_target3;
DROP USER user20989@localhost;
disconnect root;
connection default;
DROP DATABASE meow;
set local sql_mode=default;
set global sql_mode=default;
--echo #
--echo # MDEV-37950: INSERT ... RETURNING exposes columns for which
--echo # the user lacks SELECT privilege
--echo #
CREATE USER regular;
GRANT INSERT ON *.* TO regular;
GRANT DELETE ON *.* TO regular;
CREATE DATABASE test1;
DROP TABLE IF EXISTS test1.t_trigger_test1;
CREATE TABLE test1.t_trigger_test1 (
id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
note VARCHAR(100)
);
DELIMITER |;
CREATE TRIGGER test1.trg_before_insert
BEFORE INSERT ON test1.t_trigger_test1
FOR EACH ROW
BEGIN
SET NEW.name = CONCAT('BEFORE_', NEW.name);
END |
DELIMITER ;|
change_user regular;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO test1.t_trigger_test1 (name) VALUES ('Alice') RETURNING *;
--error ER_COLUMNACCESS_DENIED_ERROR
INSERT INTO test1.t_trigger_test1 (name) VALUES ('Alice') RETURNING id, name, note;
--echo # same for DELETE because delete with "WHERE" still requires to
--echo # read from the table, which basically means having select privileges
--error ER_COLUMNACCESS_DENIED_ERROR
DELETE FROM test1.t_trigger_test1 WHERE id=1;
--error ER_COLUMNACCESS_DENIED_ERROR
DELETE FROM test1.t_trigger_test1 WHERE id=1 RETURNING id;
--error ER_COLUMNACCESS_DENIED_ERROR
DELETE FROM test1.t_trigger_test1 WHERE id=1 RETURNING *;
--error ER_COLUMNACCESS_DENIED_ERROR
DELETE FROM test1.t_trigger_test1 RETURNING *;
--error ER_COLUMNACCESS_DENIED_ERROR
DELETE FROM test1.t_trigger_test1 RETURNING id;
DELETE FROM test1.t_trigger_test1;
change_user root;
DROP TRIGGER test1.trg_before_insert;
DROP TABLE test1.t_trigger_test1;
DROP USER regular;
DROP DATABASE test1;