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  1. MariaDB Server
  2. MDEV-21247

ASAN use-after-poison in create_tmp_table upon SELECT from view with subquery and left join

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      Description

      CREATE TABLE t1 (a BIGINT, b BIT(1) NOT NULL) ENGINE=MyISAM;
      CREATE VIEW v1 AS SELECT * FROM t1;
      INSERT INTO t1 VALUES (1,b'0'),(2,b'0');
       
      CREATE TABLE t2 (c INT) ENGINE=MyISAM;
      INSERT INTO t2 VALUES (3),(4);
       
      SELECT * FROM t2 LEFT JOIN ( SELECT * FROM v1 ) sq ON (c = a);
       
      # Cleanup
      DROP VIEW v1;
      DROP TABLE t1, t2;
      

      10.3 ASAN e5e58777

      ==18554==ERROR: AddressSanitizer: use-after-poison on address 0x61900008ad51 at pc 0x7f8bc12c7f7f bp 0x7f8bb561e060 sp 0x7f8bb561d810
      READ of size 1 at 0x61900008ad51 thread T5
          #0 0x7f8bc12c7f7e  (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x5cf7e)
          #1 0x560146b7f5ff in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool) /data/src/10.3/sql/sql_select.cc:17852
          #2 0x560146cc66c3 in select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int) /data/src/10.3/sql/sql_union.cc:372
          #3 0x5601469bf93a in mysql_derived_prepare(THD*, LEX*, TABLE_LIST*) /data/src/10.3/sql/sql_derived.cc:799
          #4 0x5601469bc5e2 in mysql_handle_single_derived(LEX*, TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_derived.cc:199
          #5 0x560146d42ca8 in TABLE_LIST::handle_derived(LEX*, unsigned int) /data/src/10.3/sql/table.cc:8287
          #6 0x5601469fc10f in LEX::handle_list_of_derived(TABLE_LIST*, unsigned int) /data/src/10.3/sql/sql_lex.h:4019
          #7 0x560146a1bb62 in st_select_lex::handle_derived(LEX*, unsigned int) /data/src/10.3/sql/sql_lex.cc:4132
          #8 0x560146b073a4 in JOIN::prepare(TABLE_LIST*, unsigned int, Item*, unsigned int, st_order*, bool, st_order*, Item*, st_order*, st_select_lex*, st_select_lex_unit*) /data/src/10.3/sql/sql_select.cc:1036
          #9 0x560146b27153 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.3/sql/sql_select.cc:4269
          #10 0x560146b013f7 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:370
          #11 0x560146a83136 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6294
          #12 0x560146a7293b in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:3821
          #13 0x560146a8c172 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:7818
          #14 0x560146a66e5e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1856
          #15 0x560146a63d3d in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1401
          #16 0x560146dd99fa in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1403
          #17 0x560146dd93c1 in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1308
          #18 0x56014823e5ff in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1862
          #19 0x7f8bc10554a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
          #20 0x7f8bbf59cd0e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe8d0e)
       
      0x61900008ad51 is located 209 bytes inside of 1100-byte region [0x61900008ac80,0x61900008b0cc)
      allocated by thread T5 here:
          #0 0x7f8bc132cd28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
          #1 0x56014836e3a7 in sf_malloc /data/src/10.3/mysys/safemalloc.c:118
          #2 0x560148340230 in my_malloc /data/src/10.3/mysys/my_malloc.c:101
          #3 0x560148320961 in alloc_root /data/src/10.3/mysys/my_alloc.c:250
          #4 0x560148321dcf in memdup_root /data/src/10.3/mysys/my_alloc.c:492
          #5 0x560146d0c22e in TABLE_SHARE::init_from_binary_frm_image(THD*, bool, unsigned char const*, unsigned long) /data/src/10.3/sql/table.cc:1286
          #6 0x560146d07648 in open_table_def(THD*, TABLE_SHARE*, unsigned int) /data/src/10.3/sql/table.cc:677
          #7 0x560146f8f59c in tdc_acquire_share(THD*, TABLE_LIST*, unsigned int, TABLE**) /data/src/10.3/sql/table_cache.cc:840
          #8 0x560146917100 in open_table(THD*, TABLE_LIST*, Open_table_context*) /data/src/10.3/sql/sql_base.cc:1839
          #9 0x56014691fc7f in open_and_process_table /data/src/10.3/sql/sql_base.cc:3675
          #10 0x560146921f0a in open_tables(THD*, DDL_options_st const&, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*) /data/src/10.3/sql/sql_base.cc:4144
          #11 0x560146926ce9 in open_and_lock_tables(THD*, DDL_options_st const&, TABLE_LIST*, bool, unsigned int, Prelocking_strategy*) /data/src/10.3/sql/sql_base.cc:5032
          #12 0x560146898a4d in open_and_lock_tables(THD*, TABLE_LIST*, bool, unsigned int) /data/src/10.3/sql/sql_base.h:505
          #13 0x560146cf4297 in mysql_create_view(THD*, TABLE_LIST*, enum_view_create_mode) /data/src/10.3/sql/sql_view.cc:450
          #14 0x560146a7ff01 in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:5852
          #15 0x560146a8c172 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:7818
          #16 0x560146a66e5e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1856
          #17 0x560146a63d3d in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1401
          #18 0x560146dd99fa in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1403
          #19 0x560146dd93c1 in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1308
          #20 0x56014823e5ff in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1862
          #21 0x7f8bc10554a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)
       
      Thread T5 created by T0 here:
          #0 0x7f8bc129bf59 in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x30f59)
          #1 0x56014823ea3b in spawn_thread_v1 /data/src/10.3/storage/perfschema/pfs.cc:1912
          #2 0x5601467d0bb0 in inline_mysql_thread_create /data/src/10.3/include/mysql/psi/mysql_thread.h:1268
          #3 0x5601467e5ebc in create_thread_to_handle_connection(CONNECT*) /data/src/10.3/sql/mysqld.cc:6600
          #4 0x5601467e659f in create_new_thread /data/src/10.3/sql/mysqld.cc:6670
          #5 0x5601467e75b7 in handle_connections_sockets() /data/src/10.3/sql/mysqld.cc:6945
          #6 0x5601467e538c in mysqld_main(int, char**) /data/src/10.3/sql/mysqld.cc:6222
          #7 0x5601467cf2cf in main /data/src/10.3/sql/main.cc:25
          #8 0x7f8bbf4d42e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
       
      SUMMARY: AddressSanitizer: use-after-poison (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x5cf7e) 
      Shadow bytes around the buggy address:
        0x0c3280009550: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0c3280009560: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0c3280009570: f7 f7 f7 f7 f7 f7 f7 f7 f7 04 fa fa fa fa fa fa
        0x0c3280009580: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
        0x0c3280009590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      =>0x0c32800095a0: 00 f7 00 00 f7 01 f7 02 f7 00[01]f7 01 f7 00 00
        0x0c32800095b0: 00 00 00 00 00 00 00 f7 00 00 00 00 00 00 00 00
        0x0c32800095c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c32800095d0: 00 00 00 f7 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c32800095e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c32800095f0: 00 f7 04 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
      Shadow byte legend (one shadow byte represents 8 application bytes):
        Addressable:           00
        Partially addressable: 01 02 03 04 05 06 07 
        Heap left redzone:       fa
        Heap right redzone:      fb
        Freed heap region:       fd
        Stack left redzone:      f1
        Stack mid redzone:       f2
        Stack right redzone:     f3
        Stack partial redzone:   f4
        Stack after return:      f5
        Stack use after scope:   f8
        Global redzone:          f9
        Global init order:       f6
        Poisoned by user:        f7
        Container overflow:      fc
        Array cookie:            ac
        Intra object redzone:    bb
        ASan internal:           fe
        Left alloca redzone:     ca
        Right alloca redzone:    cb
      ==18554==ABORTING
      

      Couldn't reproduce on 10.2 or 10.4.
      No obvious immediate effect on a non-ASAN build.
      Reproducible with MyISAM and Aria, couldn't reproduce with InnoDB.
      Data in the test case is optional, reproducible with empty tables as well.

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            Assignee:
            sanja Oleksandr Byelkin
            Reporter:
            elenst Elena Stepanova
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              Created:
              Updated: