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  1. MariaDB Server
  2. MDEV-23467

SIGSEGV in fill_record/fill_record_n_invoke_before_triggers on INSERT DELAYED

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      Though there are many other bugs with similar frames in their stack, I could not locate any open bug that matched this scenario. Closest one was MDEV-14871 (closed)

      USE test;
      CREATE TABLE t (a INT, KEY(a)) ENGINE=MEMORY WITH SYSTEM VERSIONING;
      INSERT DELAYED INTO t VALUES (1);
      

      Leads to:

      10.4.15 eae968f62d285de97ed607c87bc131cd863d5d03 (Debug)

      Core was generated by `/test/MD110820-mariadb-10.4.15-linux-x86_64-dbg/bin/mysqld --no-defaults --core'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11)
          at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      [Current thread is 1 (Thread 0x14d032a7f700 (LWP 1335577))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x000055b3f0e5c8a6 in my_write_core (sig=sig@entry=11) at /test/10.4_dbg/mysys/stacktrace.c:482
      #2  0x000055b3f05d8cdc in handle_fatal_signal (sig=11) at /test/10.4_dbg/sql/signal_handler.cc:343
      #3  <signal handler called>
      #4  fill_record (thd=thd@entry=0x14d00b015070, table=table@entry=0x14d00b06e748, ptr=0x14d00b06f528, ptr@entry=0x14d00b06f518, values=@0x14d00b06dca8: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x14d00b06dd58, last = 0x14d00b06dd58, elements = 1}, <No data fields>}, ignore_errors=ignore_errors@entry=false, use_value=use_value@entry=false) at /test/10.4_dbg/sql/sql_base.cc:8798
      #5  0x000055b3f02afdd5 in fill_record_n_invoke_before_triggers (thd=thd@entry=0x14d00b015070, table=table@entry=0x14d00b06e748, ptr=0x14d00b06f518, values=@0x14d00b06dca8: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x14d00b06dd58, last = 0x14d00b06dd58, elements = 1}, <No data fields>}, ignore_errors=ignore_errors@entry=false, event=event@entry=TRG_EVENT_INSERT) at /test/10.4_dbg/sql/sql_base.cc:8862
      #6  0x000055b3f02f089f in mysql_insert (thd=thd@entry=0x14d00b015070, table_list=0x14d00b06d178, fields=@0x14d00b019e48: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x55b3f1aa5000 <end_of_list>, last = 0x14d00b019e48, elements = 0}, <No data fields>}, values_list=@0x14d00b019e90: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x14d00b06dd68, last = 0x14d00b06dd68, elements = 1}, <No data fields>}, update_fields=@0x14d00b019e78: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x55b3f1aa5000 <end_of_list>, last = 0x14d00b019e78, elements = 0}, <No data fields>}, update_values=@0x14d00b019e60: {<base_list> = {<Sql_alloc> = {<No data fields>}, first = 0x55b3f1aa5000 <end_of_list>, last = 0x14d00b019e60, elements = 0}, <No data fields>}, duplic=<optimized out>, ignore=<optimized out>) at /test/10.4_dbg/sql/sql_insert.cc:1020
      #7  0x000055b3f0328a63 in mysql_execute_command (thd=thd@entry=0x14d00b015070) at /test/10.4_dbg/sql/sql_parse.cc:4519
      #8  0x000055b3f0330090 in mysql_parse (thd=thd@entry=0x14d00b015070, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14d032a7e460, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_parse.cc:7896
      #9  0x000055b3f0332920 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14d00b015070, packet=packet@entry=0x14d00b057071 "INSERT DELAYED INTO t VALUES (1)", packet_length=packet_length@entry=32, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_parse.cc:1834
      #10 0x000055b3f033635b in do_command (thd=0x14d00b015070) at /test/10.4_dbg/sql/sql_parse.cc:1352
      #11 0x000055b3f04628b6 in do_handle_one_connection (connect=connect@entry=0x14d02f835790) at /test/10.4_dbg/sql/sql_connect.cc:1412
      #12 0x000055b3f04629d6 in handle_one_connection (arg=0x14d02f835790) at /test/10.4_dbg/sql/sql_connect.cc:1316
      #13 0x000014d031c7d6db in start_thread (arg=0x14d032a7f700) at pthread_create.c:463
      #14 0x000014d030df7a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.3.25 (dbg), 10.3.25 (opt), 10.4.15 (dbg), 10.4.15 (opt)

      Bug confirmed not present in:
      MariaDB: 10.1.47 (dbg), 10.1.47 (opt), 10.2.34 (dbg), 10.2.34 (opt), 10.5.6 (dbg), 10.5.6 (opt)
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.47 (dbg), 5.6.47 (opt), 5.7.29 (dbg), 5.7.29 (opt), 8.0.19 (dbg), 8.0.19 (opt)

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              Assignee:
              midenok Aleksey Midenkov
              Reporter:
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved: