asan error about stack overflow when writing record in Aria

main.union                               w1 [ fail ]

        Test ended at 2024-07-05 00:52:49

CURRENT_TEST: main.union

mysqltest: At line 879: query 'CREATE TABLE t3 SELECT REPEAT(a,20000000) AS a FROM t1 UNION SELECT b FROM t2' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:

< snip >

SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;

left(a,100000000)

a

b

create table t3 SELECT left(a,100000000) FROM t1 UNION  SELECT b FROM t2;

show create table t3;

Table	Create Table

t3	CREATE TABLE `t3` (

  `left(a,100000000)` longtext DEFAULT NULL

) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci

drop tables t1,t2,t3;

SET @tmp_max= @@global.max_allowed_packet;

SET @@global.max_allowed_packet=25000000;

Warnings:

Warning	1292	Truncated incorrect max_allowed_packet value: '25000000'

connect  newconn, localhost, root,,;

CREATE TABLE t1 (a mediumtext);

CREATE TABLE t2 (b varchar(20));

INSERT INTO t1 VALUES ('a');

CREATE TABLE t3 SELECT REPEAT(a,20000000) AS a FROM t1 UNION SELECT b FROM t2;

More results from queries before failure can be found in /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/mysql-test/var/1/log/union.log

#6  0x000055fff57cb5eb in __sanitizer::Abort() ()

#7  0x000055fff57c9775 in __sanitizer::Die() ()

#8  0x000055fff57a9e9f in __asan::ScopedInErrorReport::~ScopedInErrorReport() ()

#9  0x000055fff57acf25 in __asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool) ()

#10 0x000055fff57a2fba in __asan_memcpy ()

#11 0x000055fff66070e2 in _ma_rec_pack (info=info@entry=0x529000dbb218, to=0x7fec5922307a "", to@entry=0x7fec59223078 "", from=0x519000234ce1 "", from@entry=0x519000234ce0 "\376") at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/storage/maria/ma_dynrec.c:1013

#12 0x000055fff6608878 in _ma_write_blob_record (info=0x529000dbb218, record=0x519000234ce0 "\376") at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/storage/maria/ma_dynrec.c:266

#13 0x000055fff66da4fe in maria_write (info=0x529000dbb218, record=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/storage/maria/ma_write.c:284

#14 0x000055fff5d1c758 in handler::ha_write_tmp_row (this=0x51d0002544b8, buf=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_class.h:7649

#15 select_unit::write_record (this=0x529000e36948) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_union.cc:418

#16 0x000055fff5d1c055 in select_unit::send_data (this=0x529000e36948, values=...) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_union.cc:157

#17 0x000055fff5b9fa2e in select_result_sink::send_data_with_check (this=0x2a50f, items=..., u=<optimized out>, sent=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_class.h:5912

#18 end_send (join=join@entry=0x529000e36a38, join_tab=join_tab@entry=0x0, end_of_records=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_select.cc:23628

#19 0x000055fff5baebdd in do_select (join=join@entry=0x529000e36a38, procedure=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_select.cc:21815

#20 0x000055fff5baced7 in JOIN::exec_inner (this=0x529000e36a38) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_select.cc:4912

#21 0x000055fff5bab0d8 in JOIN::exec (this=0x529000e36a38) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_select.cc:4690

#22 0x000055fff5d192a3 in st_select_lex_unit::exec (this=0x52b0000c12f0) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_union.cc:2248

#23 0x000055fff5d12cdf in mysql_union (thd=thd@entry=0x52b0000bd218, lex=<optimized out>, result=result@entry=0x529000e36800, unit=0x52b0000c12f0, setup_tables_done_option=setup_tables_done_option@entry=0) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_union.cc:42

#24 0x000055fff5b52827 in handle_select (thd=thd@entry=0x52b0000bd218, lex=0x2a596, lex@entry=0x52b0000c1218, result=result@entry=0x529000e36800, setup_tables_done_option=setup_tables_done_option@entry=0) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_select.cc:576

#25 0x000055fff5cf5128 in Sql_cmd_create_table_like::execute (this=<optimized out>, thd=0x52b0000bd218) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_table.cc:12694

#26 0x000055fff5ab6c60 in mysql_execute_command (thd=0x52b0000bd218, is_called_from_prepared_stmt=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_parse.cc:6125

#27 0x000055fff5aab1f3 in mysql_parse (thd=thd@entry=0x52b0000bd218, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x7fec5965c7c0) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_parse.cc:8126

#28 0x000055fff5aa6cb5 in dispatch_command (command=<optimized out>, thd=0x52b0000bd218, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_parse.cc:1894

#29 0x000055fff5aabc92 in do_command (thd=0x52b0000bd218, blocking=true) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_parse.cc:1407

#30 0x000055fff5e0c61e in do_handle_one_connection (connect=<optimized out>, put_in_cache=<optimized out>) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_connect.cc:1415

#31 0x000055fff5e0c021 in handle_one_connection (arg=0x508000002738) at /home/buildbot/amd64-ubuntu-2404-clang18-asan/build/sql/sql_connect.cc:1317

#32 0x000055fff57a2b3d in asan_thread_start(void*) ()

#33 0x00007fec64649a94 in ?? () from /lib/x86_64-linux-gnu/libc.so.6

#34 0x00007fec646d6a34 in clone () from /lib/x86_64-linux-gnu/libc.so.6