ASAN heap-use-after-free in MyISAM bulk insert with indexed virtual column

SET sql_mode='';

CREATE TABLE t (a INT GENERATED ALWAYS AS (1) VIRTUAL,KEY(a)) ENGINE=MyISAM;

INSERT INTO t SELECT * FROM seq_1_to_10;

CREATE TABLE t1 (a CHAR(1),KEY(a)) ENGINE=InnoDB;

INSERT INTO t1 VALUES (1);

INSERT INTO t SELECT * FROM seq_1_to_10;

mariadbd: /test/10.6_dbg/storage/innobase/include/sux_lock.h:85: void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]: Assertion `r->empty()' failed.

Core was generated by `/test/MD050723-mariadb-10.6.15-linux-x86_64-dbg/bin/mariadbd --no-defaults --co'.

Program terminated with signal SIGABRT, Aborted.

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

[Current thread is 1 (Thread 0x153567da3940 (LWP 1233784))]

(gdb) bt

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

#1  0x0000153567f7c859 in __GI_abort () at abort.c:79

#2  0x0000153567f7c729 in __assert_fail_base (fmt=0x153568112588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x56502ba6d5d0 "r->empty()", file=0x56502ba5cd68 "/test/10.6_dbg/storage/innobase/include/sux_lock.h", line=85, function=<optimized out>) at assert.c:92

#3  0x0000153567f8dfd6 in __GI___assert_fail (assertion=assertion@entry=0x56502ba6d5d0 "r->empty()", file=file@entry=0x56502ba5cd68 "/test/10.6_dbg/storage/innobase/include/sux_lock.h", line=line@entry=85, function=function@entry=0x56502bac0318 "void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]") at assert.c:101

#4  0x000056502b52dd27 in sux_lock<ssux_lock_impl<true> >::free (this=0x1535517687e8) at /usr/include/c++/9/bits/hashtable.h:564

#5  buf_pool_t::close (this=<optimized out>) at /test/10.6_dbg/storage/innobase/buf/buf0buf.cc:1152

#6  0x000056502b4727ad in innodb_shutdown () at /test/10.6_dbg/storage/innobase/srv/srv0start.cc:2064

#7  0x000056502b268acc in innobase_end () at /test/10.6_dbg/storage/innobase/handler/ha_innodb.cc:4370

#8  0x000056502af4f70c in ha_finalize_handlerton (plugin=0x56502e517650) at /test/10.6_dbg/sql/handler.cc:595

#9  0x000056502ac9bacf in plugin_deinitialize (plugin=0x56502e517650, ref_check=ref_check@entry=true) at /test/10.6_dbg/sql/sql_plugin.cc:1269

#10 0x000056502ac9c3d5 in reap_plugins () at /test/10.6_dbg/sql/sql_plugin.cc:1345

#11 0x000056502ac9e747 in plugin_shutdown () at /test/10.6_dbg/sql/sql_plugin.cc:2053

#12 0x000056502ab9923e in clean_up (print_message=print_message@entry=true) at /test/10.6_dbg/sql/mysqld.cc:1971

#13 0x000056502aba4359 in mysqld_main (argc=<optimized out>, argv=<optimized out>) at /test/10.6_dbg/sql/mysqld.cc:5913

#14 0x000056502ab98b46 in main (argc=<optimized out>, argv=<optimized out>) at /test/10.6_dbg/sql/main.cc:34