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  1. MariaDB Server
  2. MDEV-18805

ASAN heap-buffer-overflow in strmake_root on temporary table with indexed virtual column

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      Description

      CREATE TEMPORARY TABLE t1 (a BINARY, b INT, c INT, d INT AS (b) PERSISTENT, KEY (d)) ENGINE MyISAM;
      ALTER TABLE t1 ADD COLUMN e DOUBLE;
      INSERT INTO t1 (a,b,c) VALUES (NULL,NULL,NULL);
      --error WARN_DATA_TRUNCATED
      ALTER TABLE t1 CHANGE c f BIGINT NOT NULL;
       
      SELECT * FROM t1 INTO OUTFILE 'load_t1';
      LOAD DATA INFILE 'load_t1' IGNORE INTO TABLE t1;
      ALTER TABLE t1 FORCE;
       
      # Cleanup
      --let $datadir= `SELECT @@datadir`
      --remove_file $datadir/test/load_t1
      

      10.3 82da9855 ASAN

      2019-03-04  2:34:24 4 [Warning] Warning: Enabling keys got errno 127 on test.t1, retrying
      =================================================================
      ==19421==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60e000071fa1 at pc 0x560b1b3c2ac4 bp 0x7f4b08a88f30 sp 0x7f4b08a88f28
      READ of size 1 at 0x60e000071fa1 thread T5
          #0 0x560b1b3c2ac3 in strmake_root /data/src/10.3/mysys/my_alloc.c:481
          #1 0x560b1998df4f in Query_arena::strmake(char const*, unsigned long) /data/src/10.3/sql/sql_class.h:1028
          #2 0x560b1a2aa443 in Column_definition::Column_definition(THD*, Field*, Field*) /data/src/10.3/sql/field.cc:11016
          #3 0x560b19b50ddf in Create_field::Create_field(THD*, Field*, Field*) /data/src/10.3/sql/field.h:4754
          #4 0x560b19de5757 in mysql_prepare_alter_table(THD*, TABLE*, HA_CREATE_INFO*, Alter_info*, Alter_table_ctx*) /data/src/10.3/sql/sql_table.cc:8023
          #5 0x560b19dee264 in mysql_alter_table(THD*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) /data/src/10.3/sql/sql_table.cc:9445
          #6 0x560b19f3b155 in Sql_cmd_alter_table::execute(THD*) /data/src/10.3/sql/sql_alter.cc:497
          #7 0x560b19bd6911 in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:6288
          #8 0x560b19be180e in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.3/sql/sql_parse.cc:8095
          #9 0x560b19bbb8e6 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.3/sql/sql_parse.cc:1854
          #10 0x560b19bb88f8 in do_command(THD*) /data/src/10.3/sql/sql_parse.cc:1396
          #11 0x560b19f2c18d in do_handle_one_connection(CONNECT*) /data/src/10.3/sql/sql_connect.cc:1403
          #12 0x560b19f2bb99 in handle_one_connection /data/src/10.3/sql/sql_connect.cc:1309
          #13 0x560b1aa61d5f in pfs_spawn_thread /data/src/10.3/storage/perfschema/pfs.cc:1862
          #14 0x7f4b15062493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
          #15 0x7f4b1344893e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)
       
      0x60e000071fa1 is located 31 bytes to the left of 148-byte region [0x60e000071fc0,0x60e000072054)
      freed by thread T5 here:
          #0 0x7f4b152cc527 in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x54527)
          #1 0x560b1b41212b in free_memory /data/src/10.3/mysys/safemalloc.c:279
          #2 0x560b1b411731 in sf_free /data/src/10.3/mysys/safemalloc.c:197
          #3 0x560b1b3e217a in my_free /data/src/10.3/mysys/my_malloc.c:223
          #4 0x560b1a848a3c in info_remove_lock /data/src/10.3/storage/maria/ma_pagecache.c:2316
          #5 0x560b1a84d240 in make_lock_and_pin /data/src/10.3/storage/maria/ma_pagecache.c:2631
          #6 0x560b1a850c09 in pagecache_unlock_by_link /data/src/10.3/storage/maria/ma_pagecache.c:3091
          #7 0x560b1a8c41b3 in _ma_unpin_all_pages /data/src/10.3/storage/maria/ma_key_recover.c:71
          #8 0x560b1a8fb95a in write_block_record /data/src/10.3/storage/maria/ma_blockrec.c:3431
          #9 0x560b1a8fc86d in allocate_and_write_block_record /data/src/10.3/storage/maria/ma_blockrec.c:3565
          #10 0x560b1a8fcb40 in _ma_write_init_block_record /data/src/10.3/storage/maria/ma_blockrec.c:3605
          #11 0x560b1a92e66b in maria_write /data/src/10.3/storage/maria/ma_write.c:157
          #12 0x560b1a7e4f03 in ha_maria::write_row(unsigned char*) /data/src/10.3/storage/maria/ha_maria.cc:1291
          #13 0x560b19d22a05 in handler::ha_write_tmp_row(unsigned char*) /data/src/10.3/sql/sql_class.h:6426
          #14 0x560b19d4d53b in schema_table_store_record(THD*, TABLE*) /data/src/10.3/sql/sql_show.cc:3827
          #15 0x560b19d33d92 in show_plugins /data/src/10.3/sql/sql_show.cc:303
          #16 0x560b19c0202a in plugin_foreach_with_mask(THD*, char (*)(THD*, st_plugin_int**, void*), int, unsigned int, void*) /data/src/10.3/sql/sql_plugin.cc:2420
          #17 0x560b19d33f12 in fill_plugins(THD*, TABLE_LIST*, Item*) /data/src/10.3/sql/sql_show.cc:312
          #18 0x560b19d8865d in get_schema_tables_result(JOIN*, enum_schema_table_state) /data/src/10.3/sql/sql_show.cc:8802
          #19 0x560b19c79c65 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:4003
          #20 0x560b19c77f79 in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3834
          #21 0x560b19c7b492 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:4239
          #22 0x560b19c55fac in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:385
          #23 0x560b19bd8976 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6551
          #24 0x560b19bc6de7 in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:3772
          #25 0x560b199d8669 in sp_instr_stmt::exec_core(THD*, unsigned int*) /data/src/10.3/sql/sp_head.cc:3594
          #26 0x560b199d6f5d in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) /data/src/10.3/sql/sp_head.cc:3322
          #27 0x560b199d7e38 in sp_instr_stmt::execute(THD*, unsigned int*) /data/src/10.3/sql/sp_head.cc:3500
          #28 0x560b199cb0cd in sp_head::execute(THD*, bool) /data/src/10.3/sql/sp_head.cc:1354
          #29 0x560b199d0333 in sp_head::execute_procedure(THD*, List<Item>*) /data/src/10.3/sql/sp_head.cc:2294
       
      previously allocated by thread T5 here:
          #0 0x7f4b152cc73f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
          #1 0x560b1b410ea1 in sf_malloc /data/src/10.3/mysys/safemalloc.c:118
          #2 0x560b1b3e179c in my_malloc /data/src/10.3/mysys/my_malloc.c:101
          #3 0x560b1a848903 in info_add_lock /data/src/10.3/storage/maria/ma_pagecache.c:2302
          #4 0x560b1a84d1a8 in make_lock_and_pin /data/src/10.3/storage/maria/ma_pagecache.c:2608
          #5 0x560b1a851e8e in pagecache_read /data/src/10.3/storage/maria/ma_pagecache.c:3425
          #6 0x560b1a8efc2e in get_head_or_tail_page /data/src/10.3/storage/maria/ma_blockrec.c:1782
          #7 0x560b1a8fc37f in allocate_and_write_block_record /data/src/10.3/storage/maria/ma_blockrec.c:3544
          #8 0x560b1a8fcb40 in _ma_write_init_block_record /data/src/10.3/storage/maria/ma_blockrec.c:3605
          #9 0x560b1a92e66b in maria_write /data/src/10.3/storage/maria/ma_write.c:157
          #10 0x560b1a7e4f03 in ha_maria::write_row(unsigned char*) /data/src/10.3/storage/maria/ha_maria.cc:1291
          #11 0x560b19d22a05 in handler::ha_write_tmp_row(unsigned char*) /data/src/10.3/sql/sql_class.h:6426
          #12 0x560b19d4d53b in schema_table_store_record(THD*, TABLE*) /data/src/10.3/sql/sql_show.cc:3827
          #13 0x560b19d33d92 in show_plugins /data/src/10.3/sql/sql_show.cc:303
          #14 0x560b19c0202a in plugin_foreach_with_mask(THD*, char (*)(THD*, st_plugin_int**, void*), int, unsigned int, void*) /data/src/10.3/sql/sql_plugin.cc:2420
          #15 0x560b19d33f12 in fill_plugins(THD*, TABLE_LIST*, Item*) /data/src/10.3/sql/sql_show.cc:312
          #16 0x560b19d8865d in get_schema_tables_result(JOIN*, enum_schema_table_state) /data/src/10.3/sql/sql_show.cc:8802
          #17 0x560b19c79c65 in JOIN::exec_inner() /data/src/10.3/sql/sql_select.cc:4003
          #18 0x560b19c77f79 in JOIN::exec() /data/src/10.3/sql/sql_select.cc:3834
          #19 0x560b19c7b492 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:4239
          #20 0x560b19c55fac in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.3/sql/sql_select.cc:385
          #21 0x560b19bd8976 in execute_sqlcom_select /data/src/10.3/sql/sql_parse.cc:6551
          #22 0x560b19bc6de7 in mysql_execute_command(THD*) /data/src/10.3/sql/sql_parse.cc:3772
          #23 0x560b199d8669 in sp_instr_stmt::exec_core(THD*, unsigned int*) /data/src/10.3/sql/sp_head.cc:3594
          #24 0x560b199d6f5d in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) /data/src/10.3/sql/sp_head.cc:3322
          #25 0x560b199d7e38 in sp_instr_stmt::execute(THD*, unsigned int*) /data/src/10.3/sql/sp_head.cc:3500
          #26 0x560b199cb0cd in sp_head::execute(THD*, bool) /data/src/10.3/sql/sp_head.cc:1354
          #27 0x560b199d0333 in sp_head::execute_procedure(THD*, List<Item>*) /data/src/10.3/sql/sp_head.cc:2294
          #28 0x560b19bc16fc in do_execute_sp /data/src/10.3/sql/sql_parse.cc:2954
          #29 0x560b19bc315d in Sql_cmd_call::execute(THD*) /data/src/10.3/sql/sql_parse.cc:3194
       
      Thread T5 created by T0 here:
          #0 0x7f4b1529bbba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)
          #1 0x560b1aa62327 in spawn_thread_v1 /data/src/10.3/storage/perfschema/pfs.cc:1912
          #2 0x560b19923468 in inline_mysql_thread_create /data/src/10.3/include/mysql/psi/mysql_thread.h:1268
          #3 0x560b199396e1 in create_thread_to_handle_connection(CONNECT*) /data/src/10.3/sql/mysqld.cc:6587
          #4 0x560b19939de6 in create_new_thread /data/src/10.3/sql/mysqld.cc:6657
          #5 0x560b1993adfd in handle_connections_sockets() /data/src/10.3/sql/mysqld.cc:6932
          #6 0x560b19938b9e in mysqld_main(int, char**) /data/src/10.3/sql/mysqld.cc:6209
          #7 0x560b199214ef in main /data/src/10.3/sql/main.cc:25
          #8 0x7f4b133802b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
       
      SUMMARY: AddressSanitizer: heap-buffer-overflow /data/src/10.3/mysys/my_alloc.c:481 strmake_root
      Shadow bytes around the buggy address:
        0x0c1c800063a0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
        0x0c1c800063b0: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa
        0x0c1c800063c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
        0x0c1c800063d0: fd fd fd fa fa fa fa fa fa fa fa fa fd fd fd fd
        0x0c1c800063e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa
      =>0x0c1c800063f0: fa fa fa fa[fa]fa fa fa fd fd fd fd fd fd fd fd
        0x0c1c80006400: fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa fa
        0x0c1c80006410: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
        0x0c1c80006420: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa
        0x0c1c80006430: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
        0x0c1c80006440: fd fd fd fa fa fa fa fa fa fa fa fa fd fd fd fd
      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
        Contiguous container OOB:fc
        ASan internal:           fe
      ==19421==ABORTING
      

      Same on 10.4 with ASAN.

      On non-ASAN and on 10.2:

      LOAD DATA INFILE 'load_t1' IGNORE INTO TABLE t1;
      Warnings:
      Error	1034	Key 1 - Found too many records; Can't continue
      Error	1034	Number of rows changed from 0 to 1
      ALTER TABLE t1 FORCE;
      bug2.strmake_root1                       [ pass ]      3
      

      On 10.4, non-deterministically:

      10.4 3b47587f

      #3  <signal handler called>
      #4  0x000055b940a4ab6e in Field::is_null_in_record (this=0x7fc0c8042910, record=0x7fc0c814a570 "\377") at /data/src/10.4/sql/field.h:1173
      #5  0x000055b940ce2462 in Column_definition::Column_definition (this=0x7fc0c8015c68, thd=0x7fc0c8000b00, old_field=0x7fc0c8042910, orig_field=0x7fc0c8042910) at /data/src/10.4/sql/field.cc:10779
      #6  0x000055b94097c192 in Create_field::Create_field (this=0x7fc0c8015c68, thd=0x7fc0c8000b00, old_field=0x7fc0c8042910, orig_field=0x7fc0c8042910) at /data/src/10.4/sql/field.h:4939
      #7  0x000055b940a9dba9 in mysql_prepare_alter_table (thd=0x7fc0c8000b00, table=0x7fc0c8008d10, create_info=0x7fc0da40acd0, alter_info=0x7fc0da40ac10, alter_ctx=0x7fc0da40a0e0) at /data/src/10.4/sql/sql_table.cc:8126
      #8  0x000055b940aa213e in mysql_alter_table (thd=0x7fc0c8000b00, new_db=0x7fc0c8005290, new_name=0x7fc0c8005690, create_info=0x7fc0da40acd0, table_list=0x7fc0c8015580, alter_info=0x7fc0da40ac10, order_num=0, order=0x0, ignore=false) at /data/src/10.4/sql/sql_table.cc:9609
      #9  0x000055b940b310ee in Sql_cmd_alter_table::execute (this=0x7fc0c8015c30, thd=0x7fc0c8000b00) at /data/src/10.4/sql/sql_alter.cc:499
      #10 0x000055b9409c248e in mysql_execute_command (thd=0x7fc0c8000b00) at /data/src/10.4/sql/sql_parse.cc:6346
      #11 0x000055b9409c7636 in mysql_parse (thd=0x7fc0c8000b00, rawbuf=0x7fc0c80154a8 "ALTER TABLE t1 FORCE", length=20, parser_state=0x7fc0da40c180, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:8157
      #12 0x000055b9409b2d24 in dispatch_command (command=COM_QUERY, thd=0x7fc0c8000b00, packet=0x7fc0c800a761 "ALTER TABLE t1 FORCE", packet_length=20, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1829
      #13 0x000055b9409b14f8 in do_command (thd=0x7fc0c8000b00) at /data/src/10.4/sql/sql_parse.cc:1358
      #14 0x000055b940b2b003 in do_handle_one_connection (connect=0x55b943db2ba0) at /data/src/10.4/sql/sql_connect.cc:1399
      #15 0x000055b940b2ad74 in handle_one_connection (arg=0x55b943db2ba0) at /data/src/10.4/sql/sql_connect.cc:1302
      #16 0x000055b941021d17 in pfs_spawn_thread (arg=0x55b943ea5210) at /data/src/10.4/storage/perfschema/pfs.cc:1862
      #17 0x00007fc0e1f69494 in start_thread (arg=0x7fc0da40d700) at pthread_create.c:333
      #18 0x00007fc0e034f93f in clone () from /lib/x86_64-linux-gnu/libc.so.6
      

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              elenst Elena Stepanova
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                Created:
                Updated:
                Resolved: