| Bug #31604 | server crash when setting slow_query_log_file/global general_log_file variable | ||
|---|---|---|---|
| Submitted: | 15 Oct 2007 11:58 | Modified: | 20 Dec 2007 0:31 |
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Logging | Severity: | S1 (Critical) |
| Version: | 5.1.23 | OS: | Any |
| Assigned to: | Ramil Kalimullin | CPU Architecture: | Any |
| Tags: | crash, general_log_file, slow_query_log_file | ||
[15 Oct 2007 12:03]
MySQL Verification Team
same problem with:
set global slow_query_log_file = substr('a',1);
[16 Oct 2007 12:19]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/35645 ChangeSet@1.2583, 2007-10-16 17:19:07+05:00, ramil@mysql.com +3 -0 Fix bug #31604: server crash when setting slow_query_log_file/global general_log_file variable Problem: we don't evaluate given expression checking values of the slow_query_log_file/general_log_file, don't check it for NULL. Fix: evaluate the expression, check result returned.
[7 Dec 2007 23:07]
Bugs System
Pushed into 6.0.5-alpha
[7 Dec 2007 23:08]
Bugs System
Pushed into 5.1.23-rc
[20 Dec 2007 0:31]
Paul DuBois
Noted in 5.1.23, 6.0.5 changelogs. Setting the general_log_file or slow_query_log_file system variable to certain values could cause a server crash.
[18 Mar 2008 12:53]
Valeriy Kravchuk
Bug #35371 was marked as a duplicate of this one.
Description: thd: 0x8dc07f0 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... Cannot determine thread, fp=0x41fd1ec4, backtrace may not be correct. Stack range sanity check OK, backtrace follows: 0x820147b handle_segfault + 541 0x84d6e23 dirname_length + 11 0x84d6eac dirname_part + 115 0x84d83a1 unpack_filename + 111 0x821d9b2 sys_check_log_path(THD*, set_var*) + 64 0x821ad73 sys_var_str::check(THD*, set_var*) + 45 0x821f635 set_var::check(THD*) + 397 0x821f3b5 sql_set_variables(THD*, List<set_var_base>*) + 103 0x8211916 mysql_execute_command(THD*) + 13446 0x82178b0 mysql_parse(THD*, char const*, unsigned int, char const**) + 372 0x820cf60 dispatch_command(enum_server_command, THD*, char*, unsigned int) + 2354 0x820c622 do_command(THD*) + 600 0x820b01d handle_one_connection + 255 0x40038aa7 _end + 931809239 0x4017ec2e _end + 933144926 How to repeat: set global general_log_file = substr('a',1);