-
Notifications
You must be signed in to change notification settings - Fork 1.7k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
MDEV-16982 Server crashes in mem_heap_dup upon DELETE from table with…
… virtual columns An uninitialized buffer is passed to row_sel_store_mysql_rec() but InnoDB may not initialize everything. Looks like it's ok in most cases but not always. The partially initialized buffer was later passed to ha_innobase::write_row() which reads random NULL bit values for virtual columns and random stuff happens. No test case for MariaDB 10.2 was found. The test case for MariaDB 10.3 involves partitioning, system versioning and the TRASH_ALLOC fill pattern 0xA5. Test case depends very much on the number and layout of columns. Think about 0xA5 byte for a NULL bit mask. row_sel_store_mysql_rec(): always initialize virtual columns NULL bit Closes #1144
- Loading branch information
Showing
1 changed file
with
25 additions
and
20 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters