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  1. MariaDB Connector/C
  2. CONC-518

mthd_my_real_connect() crashes on connection error

Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • 3.1.9
    • 3.2.0, 3.1.12
    • None
    • Microsoft Windows Server 2019 Standard

    Description

      Unhandled exception thrown: read access violation.

      The crash happens here:
      https://github.com/mariadb-corporation/mariadb-connector-c/blob/v3.1.9/libmariadb/mariadb_lib.c#L1704

      error:
      		 
        /* Free alloced memory */
      		 
        end_server(mysql);
      		 
        /* only free the allocated memory, user needs to call mysql_close */
      		 
        mysql_close_memory(mysql);
      		 
        if (!(client_flag & CLIENT_REMEMBER_OPTIONS) &&
      		 
            !mysql->options.extension->async_context)    <--- mysql->options.extension was nullptr
      		 
          mysql_close_options(mysql);
      		 
        return(0);

      Call stack:

      libmariadb!mthd_my_real_connect+0x858 [libmariadb\mariadb_lib.c @ 1703] 
      libmariadb!mysql_real_connect+0x24a [libmariadb\mariadb_lib.c @ 1330]

      Attachments

        Activity

          Transition Time In Source Status Execution Times
          Georg Richter made transition -
          Open Closed
          		10h 58m 1

          People

            georg Georg Richter
            skvoboo Anton Serbulov
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            Dates

              Created:
              Updated:
              Resolved:

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