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  1. MariaDB Server
  2. MDEV-28676

Spider: Got error 12701 when reading table (and possible/previous ASAN: heap-use-after-free in ha_spider::external_lock) when using HANDLER

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Cannot Reproduce
    • 10.4(EOL), 10.5, 10.6, 10.7(EOL), 10.8(EOL), 10.9(EOL), 10.10(EOL), 10.11, 11.0(EOL), 11.1(EOL), 11.2(EOL), 11.3(EOL)
    • N/A
    • Storage Engine - Spider

    Description

      Possibly connected with MDEV-27902.

      INSTALL PLUGIN spider SONAME 'ha_spider.so';
      		 
      CREATE TABLE t (c INT) ENGINE=Spider;
      		 
      HANDLER t OPEN;
      		 
      HANDLER t READ FIRST;

      Results in:

      10.9.0 0b14dbd45b5a1c02616d611876158d44b92b77bf (Optimized)

      		 
      2022-05-27  8:36:01 4 [ERROR] mysql_ha_read: Got error 12701 when reading table 't'

      10.9.0 0b14dbd45b5a1c02616d611876158d44b92b77bf (Debug)

      		 
      2022-05-27  8:36:01 4 [ERROR] mysql_ha_read: Got error 12701 when reading table 't'

      Present in at least 10.4+ dbg+opt, but likely earlier too.

      Bug confirmed present in:
      MariaDB: 10.4.23 (dbg), 10.4.23 (opt), 10.5.14 (dbg), 10.5.14 (opt), 10.6.6 (dbg), 10.6.6 (opt), 10.7.2 (dbg), 10.7.2 (opt), 10.8.1 (dbg), 10.8.1 (opt), 10.9.0 (dbg), 10.9.0 (opt)

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        Issue Links

          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28352 Spider: heap-use-after-free in ha_spider::lock_tables(), heap freed by spider_commit()

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

          Task - A task that needs to be done. MDEV-28775 Implement connection manager in Spider

          • Major - Major loss of function.
          • Stalled
          split to

          Task - A task that needs to be done. MDEV-32506 Improve spider error messages when the remote server is unreachable

          • Major - Major loss of function.
          • Open

          Activity

            People

              ycp Yuchen Pei
              Roel Roel Van de Paar
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              Dates

                Created:
                Updated:
                Resolved:

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