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MDEV-16987 - ALTER DATABASE possible in read-only mode

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Forbid ALTER DATABASE under read_only.
This commit is contained in:
Sergey Vojtovich 2018-12-12 19:58:20 +04:00
parent 32b7d456d5
commit 15eaeace39
3 changed files with 25 additions and 0 deletions
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11
mysql-test/r/read_only.result
View file

@ -162,3 +162,14 @@ delete from mysql.columns_priv where User like 'mysqltest_%';
flush privileges;
drop database mysqltest_db1;
set global read_only= @start_read_only;
#
# MDEV-16987 - ALTER DATABASE possible in read-only mode
#
GRANT ALTER ON test1.* TO user1@localhost;
CREATE DATABASE test1;
SET GLOBAL read_only=1;
ALTER DATABASE test1 CHARACTER SET utf8;
ERROR HY000: The MariaDB server is running with the --read-only option so it cannot execute this statement
SET GLOBAL read_only=0;
DROP DATABASE test1;
DROP USER user1@localhost;

13
mysql-test/t/read_only.test
View file

@ -310,3 +310,16 @@ set global read_only= @start_read_only;
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc
--echo #
--echo # MDEV-16987 - ALTER DATABASE possible in read-only mode
--echo #
GRANT ALTER ON test1.* TO user1@localhost;
CREATE DATABASE test1;
SET GLOBAL read_only=1;
change_user user1;
--error ER_OPTION_PREVENTS_STATEMENT
ALTER DATABASE test1 CHARACTER SET utf8;
change_user root;
SET GLOBAL read_only=0;
DROP DATABASE test1;
DROP USER user1@localhost;

1
sql/sql_parse.cc
View file

@ -831,6 +831,7 @@ static bool deny_updates_if_read_only_option(THD *thd, TABLE_LIST *all_tables)
DBUG_RETURN(FALSE);
if (lex->sql_command == SQLCOM_CREATE_DB ||
lex->sql_command == SQLCOM_ALTER_DB ||
lex->sql_command == SQLCOM_DROP_DB)
DBUG_RETURN(TRUE);