"free(): invalid pointer" with TABLE_TYPE=ODBC and the MariaDB ODBC Driver

2022-09-30 10:18:50 24 [Note] CONNECT: Version 1.07.0002 March 22, 2021

free(): invalid pointer

220930 13:04:09 [ERROR] mysqld got signal 6 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.9.3-MariaDB-1:10.9.3+maria~ubu2204-log

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=5

max_threads=10002

thread_count=5

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 22159044 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7f6668000c68

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...

stack_bottom = 0x7f66945a8c78 thread_stack 0x49000

Printing to addr2line failed

mysqld(my_print_stacktrace+0x32)[0x55a2e5062342]

mysqld(handle_fatal_signal+0x478)[0x55a2e4b338e8]

/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f66b7073520]

/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x12c)[0x7f66b70c7a7c]

/lib/x86_64-linux-gnu/libc.so.6(raise+0x16)[0x7f66b7073476]

/lib/x86_64-linux-gnu/libc.so.6(abort+0xd3)[0x7f66b70597f3]

/lib/x86_64-linux-gnu/libc.so.6(+0x896f6)[0x7f66b70ba6f6]

/lib/x86_64-linux-gnu/libc.so.6(+0xa0d7c)[0x7f66b70d1d7c]

/lib/x86_64-linux-gnu/libc.so.6(+0xa2ac4)[0x7f66b70d3ac4]

/lib/x86_64-linux-gnu/libc.so.6(free+0x73)[0x7f66b70d64d3]

mysqld(+0xa1e04a)[0x55a2e4b0604a]

mysqld(mysql_real_connect+0x3a8)[0x55a2e4b0aa68]

/usr/lib/x86_64-linux-gnu/odbc/libmaodbc.so(+0x18033)[0x7f668dfc6033]

/usr/lib/x86_64-linux-gnu/odbc/libmaodbc.so(+0x1f789)[0x7f668dfcd789]

/usr/lib/x86_64-linux-gnu/odbc/libmaodbc.so(SQLDriverConnect+0xc4)[0x7f668dfbb964]

/lib/x86_64-linux-gnu/libodbc.so.2(SQLDriverConnect+0x9c0)[0x7f669415c370]

/usr/lib/mysql/plugin/ha_connect.so(_ZN7ODBConn13DriverConnectEj+0x50)[0x7f66944e8060]

/usr/lib/mysql/plugin/ha_connect.so(_ZN7ODBConn4OpenEPKcP10odbc_parmsj+0x63)[0x7f66944e8133]

/usr/lib/mysql/plugin/ha_connect.so(_Z11ODBCColumnsP7_globalPKcS2_S2_S2_ibP10odbc_parms+0x257)[0x7f66944e8497]

/usr/lib/mysql/plugin/ha_connect.so(+0xa3f12)[0x7f6694436f12]

mysqld(+0x8acdae)[0x55a2e4994dae]

mysqld(_Z26mysql_create_table_no_lockP3THDP16st_ddl_log_stateS2_PK25st_mysql_const_lex_stringS5_P22Table_specification_stP10Alter_infoPbiP10TABLE_LIST+0x148)[0x55a2e4995458]

mysqld(_ZN25Sql_cmd_create_table_like7executeEP3THD+0x120a)[0x55a2e499fb8a]

mysqld(_Z21mysql_execute_commandP3THDb+0x4be6)[0x55a2e48e3406]

mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x1e7)[0x55a2e48e4697]

mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjb+0x14d5)[0x55a2e48e6e35]

mysqld(_Z10do_commandP3THDb+0x138)[0x55a2e48e8b38]

mysqld(_Z24do_handle_one_connectionP7CONNECTb+0x3bf)[0x55a2e4a0741f]

mysqld(handle_one_connection+0x5d)[0x55a2e4a0776d]

mysqld(+0xc76de6)[0x55a2e4d5ede6]

/lib/x86_64-linux-gnu/libc.so.6(+0x94b43)[0x7f66b70c5b43]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x44)[0x7f66b7156bb4]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7f66680109c0): create Or replace table pg_acc ENGINE=CONNECT TABLE_TYPE=ODBC CONNECTION='Driver=MariaDB Unicode;UID=maxuser;PWD=maxpwd;SERVER=127.0.0.1;PORT=5432' TABNAME='pgbench_accounts'

Connection ID (thread ID): 27

Status: KILL_QUERY

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /var/lib/mysql

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units     

Max cpu time              unlimited            unlimited            seconds   

Max file size             unlimited            unlimited            bytes     

Max data size             unlimited            unlimited            bytes     

Max stack size            8388608              unlimited            bytes     

Max core file size        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             unlimited            unlimited            processes 

Max open files            60000                60000                files     

Max locked memory         8388608              8388608              bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       127103               127103               signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Max realtime timeout      unlimited            unlimited            us        

Core pattern: |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h

Kernel version: Linux version 5.19.11-200.fc36.x86_64 (mockbuild@bkernel02.iad2.fedoraproject.org) (gcc (GCC) 12.2.1 20220819 (Red Hat 12.2.1-2), GNU ld version 2.37-36.fc36) #1 SMP PREEMPT_DYNAMIC Fri Sep 23 15:07:44 UTC 2022

Fatal signal 11 while backtracing