1
0
mirror of https://github.com/MariaDB/server.git synced 2025-08-29 00:08:14 +03:00
Files
mariadb/mysql-test/t
Sergey Glukhov d2db80c8d4 Bug#38999 valgrind warnings for update statement in function compare_record()
Valgrind warning happpens because of uninitialized null bytes.
In row_sel_push_cache_row_for_mysql() function we fill fetch cache
with necessary field values, row_sel_store_mysql_rec() is called
for this and leaves null bytes untouched.
Later row_sel_pop_cached_row_for_mysql() rewrites table record
buffer with uninited null bytes. We can see the problem from the
test case:
At 'SELECT...' we call row_sel_push...->row_sel_store...->row_sel_pop_cached...
chain which rewrites table->record[0] buffer with uninitialized null bytes.
When we call 'UPDATE...' statement, compare_record uses this buffer and
valgrind warning occurs.
The fix is to init null bytes with default values.
2010-06-09 16:07:34 +04:00
..
2009-08-20 14:30:59 +02:00
2009-02-09 22:00:15 +01:00
2010-02-25 23:13:11 +04:00
2009-02-09 22:00:15 +01:00
2009-06-25 13:44:50 +05:00
2009-09-29 17:38:40 +02:00
2010-02-25 17:12:15 +02:00
2010-05-05 15:05:55 +03:00
2009-03-27 10:18:06 +08:00
2009-02-06 18:25:08 +01:00
2009-01-23 13:22:05 +01:00
2009-12-11 16:02:47 +02:00
2009-05-06 15:00:14 +05:30
2009-09-02 18:58:17 +02:00
2009-04-09 14:38:50 +05:00
2010-04-27 00:46:52 +04:00
2009-10-20 11:00:07 -07:00
2010-05-03 18:14:39 +02:00
2009-01-23 13:22:05 +01:00
2009-12-17 12:06:36 -08:00
2010-01-29 16:54:27 +02:00
2009-12-10 17:38:01 +02:00
2009-02-03 14:45:17 +01:00
2009-08-12 12:03:05 +02:00
2010-03-12 11:52:38 +01:00
2010-01-29 15:08:49 +04:00
2010-01-15 10:51:39 +02:00
2009-07-03 10:19:32 +02:00
2009-11-27 18:10:28 +02:00
2009-12-23 17:44:03 +04:00
2009-06-10 11:58:36 +03:00
2009-02-19 18:24:25 -05:00
2009-01-31 02:08:41 +01:00
2009-12-22 14:38:33 +04:00