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  1. MariaDB Server
  2. MDEV-26410

MariaDB server crash in st_select_lex_unit::exclude_level

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 10.5, 10.6, 10.7
    • Fix Version/s: N/A
    • Component/s: N/A
    • Labels:
      None
    • Environment:
      Linux version 5.13.0-1-MANJARO (builduser@LEGION) (gcc (GCC) 11.1.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Mon Jun 7 06:16:10 UTC 2021 x86_64

      Description

      PoC:

      KILL STRCMP ( 'x' = 47051287.000000 , TIME ( NOT 'x' IN ( SELECT -32768 ) ) MOD 44 ) ;
      

      crash log:

      Version: '10.7.0-MariaDB' socket: '/tmp/12.socket' port: 10012 Source distribution
      210816 15:00:02 [ERROR] mysqld got signal 11 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.

      To report this bug, see https://mariadb.com/kb/en/reporting-bugs

      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed,
      something is definitely wrong and this may fail.

      Server version: 10.7.0-MariaDB
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=1
      max_threads=153
      thread_count=1
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467956 K bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.

      Thread pointer: 0x62b0000bd218
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7f677d93c850 thread_stack 0x5fc00
      sanitizer_common/sanitizer_common_interceptors.inc:4203(__interceptor_backtrace.part.0)[0x7f679d1e8c3e]
      mysys/stacktrace.c:213(my_print_stacktrace)[0x55ea78116747]
      sql/signal_handler.cc:222(handle_fatal_signal)[0x55ea770de120]
      sigaction.c:0(__restore_rt)[0x7f679cbd2870]
      sql/sql_lex.cc:3315(st_select_lex_unit::exclude_level())[0x55ea768e1518]
      sql/item_subselect.cc:322(Item_subselect::fix_fields(THD*, Item**))[0x55ea773cff8c]
      sql/item_subselect.cc:3562(Item_in_subselect::fix_fields(THD*, Item**))[0x55ea773d0c62]
      sql/item_func.cc:347(Item_func::fix_fields(THD*, Item**))[0x55ea7727229c]
      sql/item_cmpfunc.cc:6455(Item_func_not::fix_fields(THD*, Item**))[0x55ea771cd8c2]
      sql/item_func.cc:347(Item_func::fix_fields(THD*, Item**))[0x55ea7727229c]
      sql/item_func.cc:347(Item_func::fix_fields(THD*, Item**))[0x55ea7727229c]
      sql/item_func.cc:347(Item_func::fix_fields(THD*, Item**))[0x55ea7727229c]
      sql/item.h:1148(Item::fix_fields_if_needed_for_scalar(THD*, Item**))[0x55ea7698f9d4]
      sql/sql_parse.cc:5523(mysql_execute_command(THD*, bool))[0x55ea76978d5e]
      sql/sql_parse.cc:8047(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55ea769835a1]
      sql/sql_parse.cc:1898(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x55ea7698960c]
      sql/sql_parse.cc:1406(do_command(THD*, bool))[0x55ea7698e73d]
      sql/sql_connect.cc:1418(do_handle_one_connection(CONNECT*, bool))[0x55ea76d49e57]
      sql/sql_connect.cc:1312(handle_one_connection)[0x55ea76d4a33d]
      perfschema/pfs.cc:2204(pfs_spawn_thread)[0x55ea777dac2c]
      pthread_create.c:0(start_thread)[0x7f679cbc8259]
      :0(_GI__clone)[0x7f679c7735e3]

      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x629000087238): KILL STRCMP ( 'x' = 47051287.000000 , TIME ( NOT 'x' IN ( SELECT -32768 ) ) MOD 44 )

      Connection ID (thread ID): 4
      Status: NOT_KILLED

      Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off

      The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
      information that should help you find out what is causing the crash.
      Writing a core file...

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              Assignee:
              Unassigned Unassigned
              Reporter:
              yaoguang yaoguang
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                Updated:
                Resolved:

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