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  1. MariaDB Connector/C
  2. CONC-197

mysql_stmt_fetch_column function will coredump if bind[0].length ptr is NULL.

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.3.0, 2.3.1
    • Fix Version/s: 3.0.1, 2.3.2
    • Labels:
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      Description

      in mysql_stmt_fetch_column function have follow code

          if (bind[0].length)
            *bind[0].length= stmt->bind[column].length_value;
          else
            *bind[0].length= *stmt->bind[column].length;
      

      if bind[0].length ptr is NULL, else branch will coredump

      The right code maybe

          if (bind[0].length)
            *bind[0].length= *stmt->bind[column].length;
          else
            bind[0].length= &stmt->bind[column].length_value;
      

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            Assignee:
            georg Georg Richter
            Reporter:
            shuianle shuianle
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              Created:
              Updated:
              Resolved: