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| author | Eugene Kosov <claprix@yandex.ru> | 2019-10-30 12:53:25 +0300 |
|---|---|---|
| committer | Eugene Kosov <claprix@yandex.ru> | 2019-10-30 12:53:25 +0300 |
| commit | a7e3008ab3d368c2e2957b346647a7656d638e5c (patch) | |
| tree | b07f1127faee338220418b441da676bc306c6466 /sql/sql_show.cc | |
| parent | bc8a9ab5f32a73e7e41680f98ba516611bc00ce0 (diff) | |
| download | mariadb-git-a7e3008ab3d368c2e2957b346647a7656d638e5c.tar.gz | |
MDEV-20926 UBSAN: load of value 165, which is not a valid value for type bool
Basicaly it's an uninitialized read. 165 is 0xa5 which comes from TRASH_ALLOC()
Fix by calling a class ctor which initializes problematic
TMP_TABLE_PARAM::force_copy_fields field
Diffstat (limited to 'sql/sql_show.cc')
| -rw-r--r-- | sql/sql_show.cc | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sql/sql_show.cc b/sql/sql_show.cc index d8f65c74448..c63b8b0f8a8 100644 --- a/sql/sql_show.cc +++ b/sql/sql_show.cc @@ -7708,8 +7708,7 @@ TABLE *create_schema_table(THD *thd, TABLE_LIST *table_list) item->maybe_null= (fields_info->field_flags & MY_I_S_MAYBE_NULL); field_count++; } - TMP_TABLE_PARAM *tmp_table_param = - (TMP_TABLE_PARAM*) (thd->alloc(sizeof(TMP_TABLE_PARAM))); + TMP_TABLE_PARAM *tmp_table_param = new TMP_TABLE_PARAM; tmp_table_param->init(); tmp_table_param->table_charset= cs; tmp_table_param->field_count= field_count; |