Memory leak in InnoDB purge when the PRIMARY KEY is defined on 32 columns

--source include/have_innodb.inc

--source include/have_partition.inc

SET SESSION sql_mode='';

CREATE TABLE t (a DATE,b INT,c INT,d INT,e INT,f INT,g INT,h INT,i DATE,j INT,k INT,l INT,m INT,n INT,o INT,p INT,q DATE,r INT,s INT,t INT,u INT,v INT,w INT,x INT,y DATE,z INT,aa INT,ab INT,ac INT,ad INT,ae INT,af INT,PRIMARY KEY(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa,ab,ac,ad,ae,af)) ENGINE=InnoDB PARTITION BY KEY(a) (PARTITION p, PARTITION p2);

INSERT INTO t (a) VALUES (0);

SELECT SLEEP(2);  # Allow server to finish slow-crashing

mariadbd: /test/11.5_dbg/storage/innobase/row/row0purge.cc:617: void row_purge_reset_trx_id(purge_node_t*, mtr_t*): Assertion `heap == __null' failed.

Core was generated by `/test/MD240424-mariadb-11.5.0-linux-x86_64-dbg/bin/mariadbd --no-defaults --max'.

Program terminated with signal SIGABRT, Aborted.

#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>)at ./nptl/pthread_kill.c:44

Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/pthread_kill.c.

44	./nptl/pthread_kill.c: Inappropriate ioctl for device.

[Current thread is 1 (LWP 2279836)]

(gdb) bt

#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>)at ./nptl/pthread_kill.c:44

#1  __pthread_kill_internal (signo=6, threadid=<optimized out>)at ./nptl/pthread_kill.c:78

#2  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6)at ./nptl/pthread_kill.c:89

#3  0x0000154e8c43c406 in __GI_raise (sig=sig@entry=6)at ../sysdeps/posix/raise.c:26

#4  0x0000154e8c42287c in __GI_abort () at ./stdlib/abort.c:79

#5  0x0000154e8c42279b in __assert_fail_base (fmt=0x154e8c5b9f68 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x55570b03d943 "heap == __null", file=file@entry=0x55570b023de0 "/test/11.5_dbg/storage/innobase/row/row0purge.cc", line=line@entry=617, function=function@entry=0x55570b023f98 "void row_purge_reset_trx_id(purge_node_t*, mtr_t*)") at ./assert/assert.c:92

#6  0x0000154e8c433b86 in __assert_fail (assertion=0x55570b03d943 "heap == __null", file=0x55570b023de0 "/test/11.5_dbg/storage/innobase/row/row0purge.cc", line=617, function=0x55570b023f98 "void row_purge_reset_trx_id(purge_node_t*, mtr_t*)") at ./assert/assert.c:101

#7  0x000055570a95ee93 in row_purge_reset_trx_id (node=node@entry=0x55570d656d50, mtr=mtr@entry=0x154e53ffe510)at /test/11.5_dbg/storage/innobase/row/row0purge.cc:617

#8  0x000055570a961d01 in row_purge_record_func (node=node@entry=0x55570d656d50, undo_rec=undo_rec@entry=0x154e8262c110 "\001\263\v", thr=thr@entry=0x55570d656cb0, updated_extern=<optimized out>)at /test/11.5_dbg/storage/innobase/row/row0purge.cc:1094

#9  0x000055570a963502 in row_purge (thr=<optimized out>, undo_rec=<optimized out>, node=<optimized out>)at /test/11.5_dbg/storage/innobase/row/row0purge.cc:1138

#10 row_purge_step (thr=thr@entry=0x55570d656cb0)at /test/11.5_dbg/storage/innobase/row/row0purge.cc:1201

#11 0x000055570a8e10f1 in que_thr_step (thr=0x55570d656cb0)at /test/11.5_dbg/storage/innobase/que/que0que.cc:588

#12 que_run_threads_low (thr=0x55570d656cb0)at /test/11.5_dbg/storage/innobase/que/que0que.cc:644

#13 que_run_threads (thr=0x55570d656cb0)at /test/11.5_dbg/storage/innobase/que/que0que.cc:664

#14 0x000055570a9b94b8 in trx_purge (n_tasks=n_tasks@entry=4, history_size=<optimized out>)at /test/11.5_dbg/storage/innobase/trx/trx0purge.cc:1484

#15 0x000055570a9a70b1 in purge_coordinator_state::do_purge (this=this@entry=0x55570c0c46e0 <purge_state>)at /test/11.5_dbg/storage/innobase/srv/srv0srv.cc:1425

#16 0x000055570a9a5ae7 in purge_coordinator_callback ()at /test/11.5_dbg/storage/innobase/srv/srv0srv.cc:1503

#17 0x000055570ab54179 in tpool::task_group::execute (this=0x55570c0c4540 <purge_coordinator_task_group>, t=t@entry=0x55570c0c44a0 <purge_coordinator_task>)at /test/11.5_dbg/tpool/task_group.cc:73

#18 0x000055570ab543c9 in tpool::task::execute (this=0x55570c0c44a0 <purge_coordinator_task>)at /test/11.5_dbg/tpool/task.cc:32

#19 0x000055570ab52171 in tpool::thread_pool_generic::worker_main (this=0x55570d390ec0, thread_var=0x55570d391380)at /test/11.5_dbg/tpool/tpool_generic.cc:583

#20 0x000055570ab53476 in std::__invoke_impl<void, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(__t=<optimized out>, __f=<optimized out>)at /usr/include/c++/12/bits/invoke.h:74

#21 std::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> (__fn=<optimized out>)at /usr/include/c++/12/bits/invoke.h:96

#22 std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::_M_invoke<0ul, 1ul, 2ul> (this=<optimized out>)at /usr/include/c++/12/bits/std_thread.h:279

#23 std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::operator()(this=<optimized out>) at /usr/include/c++/12/bits/std_thread.h:286

#24 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run (this=<optimized out>)at /usr/include/c++/12/bits/std_thread.h:231

#25 0x0000154e8c8e63e3 in std::execute_native_thread_routine (__p=0x154e60000eb0)at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104

#26 0x0000154e8c48f18a in start_thread (arg=<optimized out>)at ./nptl/pthread_create.c:444

#27 0x0000154e8c51dbd0 in clone3 ()at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81