Bug #59125 valgrind uninitialised value warning in ull2dec, longlong2decimal
| Submitted: | 23 Dec 2010 11:23 | Modified: | 19 Apr 2011 16:36 |
|---|---|---|---|
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Data Types | Severity: | S3 (Non-critical) |
| Version: | 5.0.92,5.1.55,5.5.9,5.6.1 | OS: | Any |
| Assigned to: | CPU Architecture: | Any |
[23 Dec 2010 11:24]
Shane Bester
some details....
Attachment: bug59125_more_infos.txt (text/plain), 31.25 KiB.
[23 Dec 2010 16:34]
Valeriy Kravchuk
Verified with current mysql-5.1-security tree on 32-bit Ubuntu 10.04.
[27 Dec 2010 14:55]
Shane Bester
another testcase from mysql-trunk:
select format(day(from_unixtime('-128')),'','es_US');
[19 Apr 2011 16:36]
Paul DuBois
Noted in 5.1.57, 5.5.12, 5.6.3 changelogs. In Item_func::val_decimal, a Valgrind warning for a missing NULL value check was corrected. CHANGESET - http://lists.mysql.com/commits/134058
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Description: Version: '5.6.1-m5-valgrind-max-debug' socket: '/tmp/mysql.sock' port: 3306 Source distribution Thread 18: Conditional jump or move depends on uninitialised value(s) at: ull2dec (decimal.c:998) by: longlong2decimal (decimal.c:1026) by: int2my_decimal (my_decimal.h:374) by: Item_func::val_decimal( (item_func.cc:528) by: Item_func_format::val_str_ascii (item_strfunc.cc:2397) by: Item_str_ascii_func::val_str (item_strfunc.cc:77) by: Item::send (item.cc:5931) by: Protocol::send_result_set_row (protocol.cc:848) by: select_send::send_data (sql_class.cc:1866) by: JOIN::exec (sql_select.cc:2794) by: mysql_select (sql_select.cc:3554) by: handle_select (sql_select.cc:323) by: execute_sqlcom_select (sql_parse.cc:4513) by: mysql_execute_command (sql_parse.cc:2096) by: mysql_parse (sql_parse.cc:5550) by: dispatch_command (sql_parse.cc:1078) by: do_command (sql_parse.cc:815) by: do_handle_one_connection (sql_connect.cc:748) by: handle_one_connection (sql_connect.cc:684) by: start_thread (pthread_create.c:301) Uninitialised value was created by a stack allocation at 0x7FAA66: Item_func_year::val_int() (item_timefunc.cc:1303) See attached file for full details of build and system. How to repeat: #run mysqld in valgrind. then: select format(year(str_to_date('',get_format(time,''))),1);