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  1. WiredTiger
  2. WT-1042

Buffer overflow in recovery code

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    Details

    • Type: Task
    • Status: Closed
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.2.1
    • Labels:
      None

      Description

      A test/format heap sanitizer run failed with:

      =================================================================
      ==75307==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6120000fb890 at pc 0x5a869d bp 0x7f1e5cd528d0 sp 0x7f1e5cd528c8
      READ of size 4 at 0x6120000fb890 thread T32
          #0 0x5a869c in __recovery_cursor /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:57
          WT-1 0x5a7712 in __txn_op_apply /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:166
          WT-2 0x5a7712 in __txn_commit_apply /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:242
          WT-3 0x5a7712 in __txn_log_recover /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:277
          WT-4 0x57868d in __wt_log_scan /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/log/log.c:906
          WT-5 0x5a6613 in __wt_txn_recover /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:447
          WT-6 0x57572a in __wt_log_open /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/log/log.c:230
          WT-7 0x54c830 in __wt_logmgr_create /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/conn/conn_log.c:193
          WT-8 0x46a142 in __wt_connection_workers /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/conn/conn_open.c:234
          WT-9 0x45f615 in wiredtiger_open /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/conn/conn_api.c:1339
          WT-10 0x459b94 in wts_open /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/../../../test/format/wts.c:117
          WT-11 0x449a69 in check_copy /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/../../../test/format/backup.c:41
          WT-12 0x449a69 in hot_backup /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/../../../test/format/backup.c:150
          WT-13 0x441903 in __asan::AsanThread::ThreadStart(unsigned long) (/home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/t+0x441903)
          WT-14 0x339e807c52 in start_thread (/lib64/libpthread.so.0+0x339e807c52)
          WT-15 0x339e0f5dbc in __clone (/lib64/libc.so.6+0x339e0f5dbc)
      0x6120000fb890 is located 16 bytes to the right of 320-byte region [0x6120000fb740,0x6120000fb880)
      allocated by thread T32 here:
          #0 0x43b4a9 in realloc (/home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/t+0x43b4a9)
          WT-1 0x48dc12 in __wt_realloc /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/os_posix/os_alloc.c:80
      Thread T32 created by T0 here:
          #0 0x4372f0 in __interceptor_pthread_create (/home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/t+0x4372f0)
          WT-1 0x450ca1 in wts_ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/../../../test/format/ops.c:99
          WT-2 0x456d92 in main /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/test/format/../../../test/format/t.c:189
      SUMMARY: AddressSanitizer: heap-buffer-overflow /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-santizer/build_posix/../src/txn/txn_recover.c:57 __recovery_cursor
      Shadow bytes around the buggy address:
        0x0c24800176c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c24800176d0: 00 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa
        0x0c24800176e0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
        0x0c24800176f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c2480017700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      =>0x0c2480017710: fa fa[fa]fa fa fa fa fa 00 00 00 00 00 00 00 00
        0x0c2480017720: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c2480017730: 00 00 00 00 00 00 00 00 00 00 fa fa fa fa fa fa
        0x0c2480017740: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
        0x0c2480017750: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0c2480017760: 00 00 00 00 00 00 00 00 00 00 fa fa fa fa fa fa
      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
        ASan internal:         fe
      

      test/format configuration file:

      auto_throttle=0
      firstfit=0
      # bitcnt not applicable to this run
      bloom=1
      bloom_bit_count=28
      bloom_hash_count=20
      bloom_oldest=0
      cache=240
      checkpoints=1
      checksum=on
      chunk_size=8
      compaction=0
      compression=none
      data_extend=0
      data_source=lsm
      delete_pct=28
      dictionary=0
      file_type=row-store
      hot_backups=1
      huffman_key=0
      huffman_value=0
      insert_pct=68
      internal_key_truncation=1
      internal_page_max=17
      key_gap=2
      key_max=82
      key_min=12
      leaf_page_max=16
      logging=1
      merge_max=4
      merge_threads=4
      mmap=1
      ops=100000
      prefix_compression=1
      prefix_compression_min=7
      repeat_data_pct=74
      reverse=0
      rows=100000
      runs=1
      split_pct=81
      statistics=0
      threads=23
      value_max=2972
      value_min=10
      # wiredtiger_config not applicable to this run
      write_pct=34
      

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              • Assignee:
                Unassigned
                Reporter:
                alexander.gorrod Alexander Gorrod
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                Dates

                • Created:
                  Updated:
                  Resolved: