SIGSEGV in spider_set_direct_limit_offset on INSERT

INSTALL PLUGIN spider SONAME 'ha_spider.so';

invalid;

CREATE TABLE t2 (a INT KEY,b INT UNIQUE AUTO_INCREMENT) ENGINE=SPIDER;

SELECT a FROM t2 UNION ALL SELECT a FROM t2;

ALTER TABLE t2 CHANGE c c INT;

invalid;

INSERT INTO t2 (a) VALUES (1);

Core was generated by `/test/MD150122-mariadb-10.8.0-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  0x00001494840e8ef2 in spider_set_direct_limit_offset (

    spider=spider@entry=0x1493f80c96f0)

    at /test/10.8_dbg/storage/spider/spd_table.cc:9535

[Current thread is 1 (Thread 0x14949c7ed700 (LWP 1016275))]

(gdb) bt

#0  0x00001494840e8ef2 in spider_set_direct_limit_offset (spider=spider@entry=0x1493f80c96f0) at /test/10.8_dbg/storage/spider/spd_table.cc:9535

#1  0x0000149484118e0b in ha_spider::check_direct_order_limit (this=this@entry=0x1493f80c96f0) at /test/10.8_dbg/storage/spider/ha_spider.cc:13105

#2  0x0000149484128ed9 in ha_spider::index_last_internal (this=this@entry=0x1493f80c96f0, buf=buf@entry=0x1493f80c9278 '\245' <repeats 16 times>, "\360\222\f\370\223\024") at /test/10.8_dbg/storage/spider/ha_spider.cc:3350

#3  0x0000149484129fc7 in ha_spider::index_last (this=this@entry=0x1493f80c96f0, buf=0x1493f80c9278 '\245' <repeats 16 times>, "\360\222\f\370\223\024") at /test/10.8_dbg/storage/spider/ha_spider.cc:3710

#4  0x00001494841367b5 in ha_spider::get_auto_increment (this=0x1493f80c96f0, offset=<optimized out>, increment=1, nb_desired_values=1, first_value=0x14949c7eb960, nb_reserved_values=0x14949c7eb968) at /test/10.8_dbg/storage/spider/ha_spider.cc:9812

#5  0x00005567087fdba1 in handler::update_auto_increment (this=this@entry=0x1493f80c96f0) at /test/10.8_dbg/sql/handler.cc:3951

#6  0x000014948411c524 in ha_spider::update_auto_increment (this=this@entry=0x1493f80c96f0) at /test/10.8_dbg/storage/spider/ha_spider.cc:9755

#7  0x00001494841384eb in ha_spider::write_row (this=0x1493f80c96f0, buf=0x1493f80c9268 "\377\001") at /test/10.8_dbg/storage/spider/ha_spider.cc:10014

#8  0x0000556708805a25 in handler::ha_write_row (this=0x1493f80c96f0, buf=0x1493f80c9268 "\377\001") at /test/10.8_dbg/sql/handler.cc:7516

#9  0x00005567084a4160 in write_record (thd=thd@entry=0x1493f8000db8, table=table@entry=0x1493f80c8e18, info=info@entry=0x14949c7ebcd0, sink=sink@entry=0x0) at /test/10.8_dbg/sql/sql_insert.cc:2156

#10 0x00005567084afdcf in mysql_insert (thd=thd@entry=0x1493f8000db8, table_list=0x1493f8013eb0, fields=@0x1493f8006078: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x1493f80146b8, last = 0x1493f80146b8, elements = 1}, <No data fields>}, values_list=@0x1493f80060c0: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x1493f8014be8, last = 0x1493f8014be8, elements = 1}, <No data fields>}, update_fields=@0x1493f80060a8: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x556709b2fb00 <end_of_list>, last = 0x1493f80060a8, elements = 0}, <No data fields>}, update_values=@0x1493f8006090: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x556709b2fb00 <end_of_list>, last = 0x1493f8006090, elements = 0}, <No data fields>}, duplic=DUP_ERROR, ignore=false, result=0x0) at /test/10.8_dbg/sql/sql_insert.cc:1127

#11 0x00005567084f651a in mysql_execute_command (thd=thd@entry=0x1493f8000db8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.8_dbg/sql/sql_parse.cc:4562

#12 0x00005567084e0f05 in mysql_parse (thd=thd@entry=0x1493f8000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14949c7ec400) at /test/10.8_dbg/sql/sql_parse.cc:8027

#13 0x00005567084efba1 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1493f8000db8, packet=packet@entry=0x1493f800b879 "INSERT INTO t2 (a) VALUES (1)", packet_length=packet_length@entry=29, blocking=blocking@entry=true) at /test/10.8_dbg/sql/sql_class.h:1360

#14 0x00005567084f2fe8 in do_command (thd=0x1493f8000db8, blocking=blocking@entry=true) at /test/10.8_dbg/sql/sql_parse.cc:1402

#15 0x000055670866c9cc in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55670ca8cc08, put_in_cache=put_in_cache@entry=true) at /test/10.8_dbg/sql/sql_connect.cc:1418

#16 0x000055670866cfd1 in handle_one_connection (arg=arg@entry=0x55670ca8cc08) at /test/10.8_dbg/sql/sql_connect.cc:1312

#17 0x0000556708aee9a2 in pfs_spawn_thread (arg=0x55670c9a0798) at /test/10.8_dbg/storage/perfschema/pfs.cc:2201

#18 0x00001494a6f60609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#19 0x00001494a6b4e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95