SIGABRT in DbugExit from my_malloc in JOIN_CACHE::alloc_buffer

SET GLOBAL join_buffer_space_limit=4095;

SET join_buffer_space_limit=DEFAULT;

CREATE TEMPORARY TABLE t (e INT,c CHAR(100),c2 CHAR(100),PRIMARY KEY(e),INDEX a(c)) ENGINE=InnoDB;

INSERT INTO t SELECT a.* FROM t a,t b,t c,t d,t e;

Core was generated by `/test/MD260221-mariadb-10.6.0-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGABRT, Aborted.

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6)

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

[Current thread is 1 (Thread 0x1545800d8700 (LWP 2932073))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x00005562dea58ab8 in my_write_core (sig=sig@entry=6) at /test/10.6_dbg/mysys/stacktrace.c:424

#2  0x00005562de1ed317 in handle_fatal_signal (sig=6) at /test/10.6_dbg/sql/signal_handler.cc:331

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#5  0x000015458173d859 in __GI_abort () at abort.c:79

#6  0x00005562dea74fd5 in DbugExit (why=why@entry=0x1545800d66e0 "missing DBUG_RETURN or DBUG_VOID_RETURN macro in function \"my_malloc\"\n") at /test/10.6_dbg/dbug/dbug.c:2043

#7  0x00005562dea76f86 in _db_return_ (_stack_frame_=_stack_frame_@entry=0x1545800d6940) at /test/10.6_dbg/dbug/dbug.c:1210

#8  0x00005562dea53cb5 in my_malloc (key=0, size=18446744073709551409, my_flags=my_flags@entry=65536) at /test/10.6_dbg/mysys/my_malloc.c:116

#9  0x00005562de0c8372 in JOIN_CACHE::alloc_buffer (this=this@entry=0x154538033bd8) at /test/10.6_dbg/sql/sql_join_cache.cc:940

#10 0x00005562de0c8b0f in JOIN_CACHE::init (this=this@entry=0x154538033bd8, for_explain=for_explain@entry=false) at /test/10.6_dbg/sql/sql_join_cache.cc:1073

#11 0x00005562de0c8bec in JOIN_CACHE_BNL::init (this=0x154538033bd8, for_explain=<optimized out>) at /test/10.6_dbg/sql/sql_join_cache.cc:3634

#12 0x00005562ddfa1928 in JOIN::init_join_cache_and_keyread (this=this@entry=0x1545380176b8) at /test/10.6_dbg/sql/sql_select.cc:29461

#13 0x00005562ddfa6595 in JOIN::optimize_stage2 (this=this@entry=0x1545380176b8) at /test/10.6_dbg/sql/sql_select.cc:3000

#14 0x00005562ddfa808b in JOIN::optimize_inner (this=this@entry=0x1545380176b8) at /test/10.6_dbg/sql/sql_select.cc:2282

#15 0x00005562ddfa82b6 in JOIN::optimize (this=this@entry=0x1545380176b8) at /test/10.6_dbg/sql/sql_select.cc:1628

#16 0x00005562ddfa8c07 in mysql_select (thd=thd@entry=0x154538000db8, tables=0x154538014948, fields=@0x154538014490: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x1545380148f0, last = 0x154538018048, elements = 3}, <No data fields>}, conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2202244745984, result=0x154538017600, unit=0x154538004f88, select_lex=0x154538014340) at /test/10.6_dbg/sql/sql_select.cc:4716

#17 0x00005562ddfa8f1c in handle_select (thd=thd@entry=0x154538000db8, lex=lex@entry=0x154538004ec0, result=result@entry=0x154538017600, setup_tables_done_option=setup_tables_done_option@entry=1073741824) at /test/10.6_dbg/sql/sql_select.cc:417

#18 0x00005562ddf2a910 in mysql_execute_command (thd=thd@entry=0x154538000db8) at /test/10.6_dbg/sql/sql_parse.cc:4665

#19 0x00005562ddf14cdc in mysql_parse (thd=thd@entry=0x154538000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1545800d73d0) at /test/10.6_dbg/sql/sql_parse.cc:7972

#20 0x00005562ddf22b3b in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x154538000db8, packet=packet@entry=0x15453800b319 "INSERT INTO t SELECT a.* FROM t a,t b,t c,t d,t e", packet_length=packet_length@entry=49, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1295

#21 0x00005562ddf25fbe in do_command (thd=0x154538000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1397

#22 0x00005562de081c2e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x5562e1166148, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410

#23 0x00005562de082331 in handle_one_connection (arg=arg@entry=0x5562e1166148) at /test/10.6_dbg/sql/sql_connect.cc:1312

#24 0x00005562de5369b9 in pfs_spawn_thread (arg=0x5562e1097c28) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201

#25 0x0000154581c4b609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#26 0x000015458183a293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95