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  1. MariaDB Server
  2. MDEV-18792

ASAN unknown-crash in _mi_pack_key upon UPDATE after failed ALTER on a table with long BLOB key

Details

    Description

      CREATE TABLE t1 (a TEXT, b INT, UNIQUE(a)) ENGINE=MyISAM;
      		 
      --error ER_CANT_DROP_FIELD_OR_KEY
      		 
      ALTER TABLE t1 DROP x;
      		 
      UPDATE t1 SET b = 0 WHERE a = 'foo';
      		 
       
      		 
      # Cleanup
      		 
      DROP TABLE t1;

      10.4 ASAN 3b47587f

      		 
      ==2768==ERROR: AddressSanitizer: unknown-crash on address 0x62100007d1df at pc 0x557e7a33c5da bp 0x7fe654597560 sp 0x7fe654597558
      		 
      READ of size 1 at 0x62100007d1df thread T5
      		 
          #0 0x557e7a33c5d9 in _mi_pack_key /data/src/10.4/storage/myisam/mi_key.c:289
      		 
          #1 0x557e7a374bb4 in _mi_record_pos /data/src/10.4/storage/myisam/mi_range.c:161
      		 
          #2 0x557e7a3744c0 in mi_records_in_range /data/src/10.4/storage/myisam/mi_range.c:104
      		 
          #3 0x557e7a2e081f in ha_myisam::records_in_range(unsigned int, st_key_range*, st_key_range*) /data/src/10.4/storage/myisam/ha_myisam.cc:2324
      		 
          #4 0x557e79047f55 in handler::multi_range_read_info_const(unsigned int, st_range_seq_if*, void*, unsigned int, unsigned int*, unsigned int*, Cost_estimate*) /data/src/10.4/sql/multi_range_read.cc:177
      		 
          #5 0x557e790532ac in DsMrr_impl::dsmrr_info_const(unsigned int, st_range_seq_if*, void*, unsigned int, unsigned int*, unsigned int*, Cost_estimate*) /data/src/10.4/sql/multi_range_read.cc:1579
      		 
          #6 0x557e7a2e21c5 in ha_myisam::multi_range_read_info_const(unsigned int, st_range_seq_if*, void*, unsigned int, unsigned int*, unsigned int*, Cost_estimate*) /data/src/10.4/storage/myisam/ha_myisam.cc:2549
      		 
          #7 0x557e79754828 in check_quick_select /data/src/10.4/sql/opt_range.cc:11070
      		 
          #8 0x557e7973e709 in get_key_scans_params /data/src/10.4/sql/opt_range.cc:7374
      		 
          #9 0x557e79723900 in SQL_SELECT::test_quick_select(THD*, Bitmap<64u>, unsigned long long, unsigned long long, bool, bool, bool, bool) /data/src/10.4/sql/opt_range.cc:2902
      		 
          #10 0x557e78eb65cc in SQL_SELECT::check_quick(THD*, bool, unsigned long long) /data/src/10.4/sql/opt_range.h:1649
      		 
          #11 0x557e78ea123e in mysql_update(THD*, TABLE_LIST*, List<Item>&, List<Item>&, Item*, unsigned int, st_order*, unsigned long long, enum_duplicates, bool, unsigned long long*, unsigned long long*) /data/src/10.4/sql/sql_update.cc:522
      		 
          #12 0x557e78c25f3a in mysql_execute_command(THD*) /data/src/10.4/sql/sql_parse.cc:4647
      		 
          #13 0x557e78c3d996 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.4/sql/sql_parse.cc:8157
      		 
          #14 0x557e78c15b9f in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.4/sql/sql_parse.cc:1829
      		 
          #15 0x557e78c129a0 in do_command(THD*) /data/src/10.4/sql/sql_parse.cc:1358
      		 
          #16 0x557e78fa60d3 in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1399
      		 
          #17 0x557e78fa5acc in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1302
      		 
          #18 0x557e79b6fdae in pfs_spawn_thread /data/src/10.4/storage/perfschema/pfs.cc:1862
      		 
          #19 0x7fe65f91a493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
      		 
          #20 0x7fe65dd0093e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)
      		 
       
      		 
      0x62100007d1df is located 223 bytes inside of 4172-byte region [0x62100007d100,0x62100007e14c)
      		 
      allocated by thread T5 here:
      		 
          #0 0x7fe65fb8473f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
      		 
          #1 0x557e7a51f7c3 in sf_malloc /data/src/10.4/mysys/safemalloc.c:118
      		 
          #2 0x557e7a4f00be in my_malloc /data/src/10.4/mysys/my_malloc.c:101
      		 
          #3 0x557e7a4cf7b6 in alloc_root /data/src/10.4/mysys/my_alloc.c:250
      		 
          #4 0x557e797223ce in SQL_SELECT::test_quick_select(THD*, Bitmap<64u>, unsigned long long, unsigned long long, bool, bool, bool, bool) /data/src/10.4/sql/opt_range.cc:2731
      		 
          #5 0x557e78eb65cc in SQL_SELECT::check_quick(THD*, bool, unsigned long long) /data/src/10.4/sql/opt_range.h:1649
      		 
          #6 0x557e78ea123e in mysql_update(THD*, TABLE_LIST*, List<Item>&, List<Item>&, Item*, unsigned int, st_order*, unsigned long long, enum_duplicates, bool, unsigned long long*, unsigned long long*) /data/src/10.4/sql/sql_update.cc:522
      		 
          #7 0x557e78c25f3a in mysql_execute_command(THD*) /data/src/10.4/sql/sql_parse.cc:4647
      		 
          #8 0x557e78c3d996 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.4/sql/sql_parse.cc:8157
      		 
          #9 0x557e78c15b9f in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.4/sql/sql_parse.cc:1829
      		 
          #10 0x557e78c129a0 in do_command(THD*) /data/src/10.4/sql/sql_parse.cc:1358
      		 
          #11 0x557e78fa60d3 in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1399
      		 
          #12 0x557e78fa5acc in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1302
      		 
          #13 0x557e79b6fdae in pfs_spawn_thread /data/src/10.4/storage/perfschema/pfs.cc:1862
      		 
          #14 0x7fe65f91a493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
      		 
       
      		 
      Thread T5 created by T0 here:
      		 
          #0 0x7fe65fb53bba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)
      		 
          #1 0x557e79b70376 in spawn_thread_v1 /data/src/10.4/storage/perfschema/pfs.cc:1912
      		 
          #2 0x557e789604a6 in inline_mysql_thread_create /data/src/10.4/include/mysql/psi/mysql_thread.h:1268
      		 
          #3 0x557e789755b2 in create_thread_to_handle_connection(CONNECT*) /data/src/10.4/sql/mysqld.cc:6133
      		 
          #4 0x557e78975cb7 in create_new_thread(CONNECT*) /data/src/10.4/sql/mysqld.cc:6203
      		 
          #5 0x557e78976047 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/src/10.4/sql/mysqld.cc:6301
      		 
          #6 0x557e78976c93 in handle_connections_sockets() /data/src/10.4/sql/mysqld.cc:6459
      		 
          #7 0x557e78974ded in mysqld_main(int, char**) /data/src/10.4/sql/mysqld.cc:5791
      		 
          #8 0x557e7895e32f in main /data/src/10.4/sql/main.cc:25
      		 
          #9 0x7fe65dc382b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
      		 
       
      		 
      SUMMARY: AddressSanitizer: unknown-crash /data/src/10.4/storage/myisam/mi_key.c:289 _mi_pack_key
      		 
      Shadow bytes around the buggy address:
      		 
        0x0c42800079e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      		 
        0x0c42800079f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      		 
        0x0c4280007a00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      		 
        0x0c4280007a10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      		 
        0x0c4280007a20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      		 
      =>0x0c4280007a30: 00 00 00 00 00 00 00 00 00 04 04[04]00 00 00 00
      		 
        0x0c4280007a40: 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
      		 
        0x0c4280007a50: 00 00 00 00 00 00 00 00 00 00 00 f7 f7 f7 f7 f7
      		 
        0x0c4280007a60: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
      		 
        0x0c4280007a70: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
      		 
        0x0c4280007a80: f7 f7 f7 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
      		 
        Contiguous container OOB:fc
      		 
        ASan internal:           fe
      		 
      ==2768==ABORTING

      Attachments

        Issue Links

          is caused by

          Task - A task that needs to be done. MDEV-371 Unique indexes for blobs

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-18793 Assertion `0' failed in row_sel_convert_mysql_key_to_innobase, ASAN unknown-crash in row_mysql_store_col_in_innobase_format, warning " InnoDB: Using a partial-field key prefix in search"

          • Major - Major loss of function.
          • Closed

          Activity

            Ascending order - Click to sort in descending order
            elenst Elena Stepanova created issue -
            elenst Elena Stepanova made changes -
            Field Original Value New Value
            elenst Elena Stepanova made changes -
            sachin.setiya.007 Sachin Setiya (Inactive) made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            sachin.setiya.007 Sachin Setiya (Inactive) added a comment -

            Patch for MDEV-18799 also solves this

            sachin.setiya.007 Sachin Setiya (Inactive) added a comment - Patch for MDEV-18799 also solves this
            sachin.setiya.007 Sachin Setiya (Inactive) made changes -
            Assignee Sachin Setiya [ sachin.setiya.007 ] Sergei Golubchik [ serg ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            sachin.setiya.007 Sachin Setiya (Inactive) made changes -
            Fix Version/s 10.4.4 [ 23310 ]
            Fix Version/s 10.4 [ 22408 ]
            Resolution Fixed [ 1 ]
            Status In Review [ 10002 ] Closed [ 6 ]
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 92933 ] MariaDB v4 [ 155835 ]

            People

              serg Sergei Golubchik
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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