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  1. MariaDB Server
  2. MDEV-28093

MariaDB UAP issue

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 10.9.0
    • Fix Version/s: N/A
    • Component/s: N/A
    • Labels:
      None
    • Environment:
      Linux jie-2 5.4.143-1-pve #1 SMP PVE 5.4.143-1 (Tue, 28 Sep 2021 09:10:37 +0200) x86_64 x86_64 x86_64 GNU/Linux

      Description

      PoC:

      CREATE TABLE v0 ( v2 INT PRIMARY KEY , v1 SERIAL NOT NULL ) ;
      INSERT INTO v0 VALUES ( 16 , NULL ) ;
      ALTER TABLE v0 ADD v0 FLOAT AS ( ( 'x' LIKE JSON_DETAILED ( ( CURRENT_USER * ( TRUE AND COALESCE ( 255 | TRUE , 0 ) = 127 ) ) ) ) ) ;
      SELECT * , v1 IN ( 'x' ^ -128 , -1 ) FROM v0 AS v0 ORDER BY v2 FOR UPDATE ;
      SELECT * , v2 IN ( 'x' ^ 45 , -1 ) FROM v0 AS v0 ORDER BY v2 ;
      SELECT * FROM v0 WHERE NOT ( 'x' = v1 AND v2 = -1 ) ORDER BY v1 ;
      SELECT * FROM v0 WHERE NOT ( 'x' = v1 AND v2 = 8 ) ORDER BY v1 ;
      

      report (compiled with ASAN):

      =================================================================
      ==8795==ERROR: AddressSanitizer: use-after-poison on address 0x62900008e140 at pc 0x0000012ea7a7 bp 0x7ff453054250 sp 0x7ff453054248
      READ of size 8 at 0x62900008e140 thread T14
          #0 0x12ea7a6 in VDec::VDec(Item*) /root/mariadb/sql/sql_type.cc:301:16
          #1 0x16b8e06 in Arg_comparator::compare_decimal() /root/mariadb/sql/item_cmpfunc.cc:854:10
          #2 0x16be218 in Arg_comparator::compare() /root/mariadb/sql/item_cmpfunc.h:103:33
          #3 0x16be218 in Item_func_eq::val_int() /root/mariadb/sql/item_cmpfunc.cc:1762:18
          #4 0x1315e0d in Type_handler_int_result::Item_val_bool(Item*) const /root/mariadb/sql/sql_type.cc:5105:16
          #5 0x16ec0f7 in Item_cond_and::val_int() /root/mariadb/sql/item_cmpfunc.cc:5421:16
          #6 0x178256d in Item_int_func::val_real() /root/mariadb/sql/item_func.cc
          #7 0x178a856 in Item_func_mul::real_op() /root/mariadb/sql/item_func.cc:1362:48
          #8 0x1783301 in Item_func_hybrid_field_type::val_str_from_real_op(String*) /root/mariadb/sql/item_func.cc:836:14
          #9 0x127e866 in Item_func_json_format::val_str(String*) /root/mariadb/sql/item_jsonfunc.cc:3691:24
          #10 0x16ee822 in Item_func_like::val_int() /root/mariadb/sql/item_cmpfunc.cc:5618:26
          #11 0x164cc16 in Item::save_int_in_field(Field*, bool) /root/mariadb/sql/item.cc:6801:16
          #12 0x164ce59 in Item::save_in_field(Field*, bool) /root/mariadb/sql/item.cc:6811:30
          #13 0x1072e98 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /root/mariadb/sql/table.cc:8757:37
          #14 0x15ca0f7 in handler::ha_index_first(unsigned char*) /root/mariadb/sql/handler.cc:3551:14
          #15 0xe5db5c in join_read_first(st_join_table*) /root/mariadb/sql/sql_select.cc:22132:7
          #16 0xd4c04d in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21092:12
          #17 0xdc6797 in do_select(JOIN*, Procedure*) /root/mariadb/sql/sql_select.cc:20640:14
          #18 0xdc6797 in JOIN::exec_inner() /root/mariadb/sql/sql_select.cc:4749:50
          #19 0xdc344c in JOIN::exec() /root/mariadb/sql/sql_select.cc:4527:3
          #20 0xd4e4e8 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /root/mariadb/sql/sql_select.cc:5007:9
          #21 0xd4d74b in handle_select(THD*, LEX*, select_result*, unsigned long) /root/mariadb/sql/sql_select.cc:543:10
          #22 0xc74410 in execute_sqlcom_select(THD*, TABLE_LIST*) /root/mariadb/sql/sql_parse.cc:6252:12
          #23 0xc609c9 in mysql_execute_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:3943:12
          #24 0xc4a67e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /root/mariadb/sql/sql_parse.cc:8027:18
          #25 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7
          #26 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17
          #27 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11
          #28 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5
          #29 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3
          #30 0x7ff477ffb608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8
          #31 0x7ff477d11162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
       
      0x62900008e140 is located 8000 bytes inside of 16400-byte region [0x62900008c200,0x629000090210)
      allocated by thread T14 here:
          #0 0x80f99d in malloc (/usr/local/mysql/bin/mariadbd+0x80f99d)
          #1 0x2a76878 in my_malloc /root/mariadb/mysys/my_malloc.c:90:29
          #2 0x2a582eb in root_alloc /root/mariadb/mysys/my_alloc.c:66:10
          #3 0x2a582eb in reset_root_defaults /root/mariadb/mysys/my_alloc.c:243:30
          #4 0xae83b5 in THD::init_for_queries() /root/mariadb/sql/sql_class.cc:1393:3
          #5 0x111e580 in prepare_new_connection_state(THD*) /root/mariadb/sql/sql_connect.cc:1240:8
          #6 0x1120266 in thd_prepare_connection(THD*) /root/mariadb/sql/sql_connect.cc:1333:3
          #7 0x111f8cc in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1408:9
          #8 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5
          #9 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3
          #10 0x7ff477ffb608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8
       
      Thread T14 created by T0 here:
          #0 0x7f9cfc in pthread_create (/usr/local/mysql/bin/mariadbd+0x7f9cfc)
          #1 0x1f3fd39 in my_thread_create(unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/storage/perfschema/my_thread.h:52:10
          #2 0x1f3fd39 in pfs_spawn_thread_v1 /root/mariadb/storage/perfschema/pfs.cc:2252:15
          #3 0x85cef4 in inline_mysql_thread_create(unsigned int, unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/include/mysql/psi/mysql_thread.h:1139:11
          #4 0x85cef4 in create_thread_to_handle_connection(CONNECT*) /root/mariadb/sql/mysqld.cc:5975:19
          #5 0x85e72a in create_new_thread(CONNECT*) /root/mariadb/sql/mysqld.cc:6034:3
          #6 0x85e72a in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /root/mariadb/sql/mysqld.cc:6096:5
          #7 0x85a34c in handle_connections_sockets() /root/mariadb/sql/mysqld.cc:6220:9
          #8 0x84e9ef in mysqld_main(int, char**) /root/mariadb/sql/mysqld.cc:5870:3
          #9 0x7ff477c160b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16
       
      SUMMARY: AddressSanitizer: use-after-poison /root/mariadb/sql/sql_type.cc:301:16 in VDec::VDec(Item*)
      Shadow bytes around the buggy address:
        0x0c5280009bd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009be0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009bf0: f7 00 00 00 f7 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009c00: f7 00 00 00 00 00 00 f7 00 00 f7 00 00 00 00 00
        0x0c5280009c10: 00 00 00 00 00 00 00 00 00 00 f7 00 f7 00 00 00
      =>0x0c5280009c20: 00 00 f7 00 00 00 00 00[f7]00 00 00 00 00 00 00
        0x0c5280009c30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009c40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009c50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009c60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c5280009c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      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
        Freed heap region:       fd
        Stack left redzone:      f1
        Stack mid redzone:       f2
        Stack right redzone:     f3
        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
        Shadow gap:              cc
      ==8795==ABORTING
      

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              Assignee:
              Unassigned Unassigned
              Reporter:
              fuboat Jingzhou Fu
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                Dates

                Created:
                Updated:
                Resolved:

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