[MDEV-6046] MySQL Bug#11766684 59851: UNINITIALISED VALUE IN ITEM_FUNC_LIKE::SELECT_OPTIMIZE WITH SUBQUERY AND Created: 2014-04-08  Updated: 2014-06-04  Resolved: 2014-06-04

Status: Closed
Project: MariaDB Server
Component/s: None
Affects Version/s: 10.0.10
Fix Version/s: 10.0.12

Type: Bug Priority: Critical
Reporter: Sergey Vojtovich Assignee: Oleksandr Byelkin
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
PartOf
is part of MDEV-4784 merge test cases from 5.6 Stalled

 Description   

Looks like the following fix is not merged to 10.0. Though I couldn't reproduce valgrind warning with provided test case. Please check if the fix is worthy.

revno: 3308
 
committer: Sergey Glukhov <sergey.glukhov@oracle.com>
 
branch nick: mysql-trunk
 
timestamp: Wed 2011-07-27 12:06:39 +0400
 
message:
 
  Bug#11766684 59851: UNINITIALISED VALUE IN ITEM_FUNC_LIKE::SELECT_OPTIMIZE WITH SUBQUERY AND
 
  There is an attempt to use uninitialized string buffer
 
  in case of empty wildcard. The fix is to add string
 
  length check for wilcard argument.


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