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MDEV-16932: ASAN heap-use-after-free in my_charlen_utf8 / my_well_formed_char_length_utf8 on 2nd execution of SP with ALTER trying to add bad CHECK

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Make automatic name generation during execution (not prepare).

Check result of memory allocation operation.
This commit is contained in:
Oleksandr Byelkin
2019-05-14 14:01:15 +02:00
parent 7aac83580a
commit 9cd6e7ad73
4 changed files with 149 additions and 13 deletions
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37
mysql-test/t/constraints.test
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@ -119,3 +119,40 @@ CREATE TABLE test.t (f int foo=bar check(f>0));
SHOW CREATE TABLE t;
DROP table test.t;
SET @@SQL_MODE=@OLD_SQL_MODE;
--echo #
--echo # MDEV-16932 - ASAN heap-use-after-free in my_charlen_utf8 /
--echo # my_well_formed_char_length_utf8 on 2nd execution of SP with
--echo # ALTER trying to add bad CHECK
--echo #
CREATE TABLE t1 (a INT);
CREATE PROCEDURE sp() ALTER TABLE t1 ADD CONSTRAINT CHECK (b > 0);
--error ER_BAD_FIELD_ERROR
CALL sp;
--error ER_BAD_FIELD_ERROR
CALL sp;
--error ER_BAD_FIELD_ERROR
CALL sp;
show create table t1;
alter table t1 add column b int;
CALL sp;
show create table t1;
CALL sp;
show create table t1;
# Cleanup
DROP PROCEDURE sp;
DROP TABLE t1;
CREATE TABLE t1 (a INT);
CREATE PROCEDURE sp() ALTER TABLE t1 ADD CONSTRAINT CHECK (b > 0);
--error ER_BAD_FIELD_ERROR
CALL sp;
alter table t1 add column b int, add constraint check (b < 10);
CALL sp;
show create table t1;
# Cleanup
DROP PROCEDURE sp;
DROP TABLE t1;
--echo # End of 10.2 tests