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  1. MariaDB Connector/ODBC
  2. ODBC-359

Segmentation fault in SQLFetch

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 3.1.15
    • 3.1.16
    • General
    • None
    • Debian 11 amd64 and arm64

    Description

      SQLFetch crashes when target buffer was set to a null buffer to get column data length as SQL_C_WCHAR

      Crash occurres in ma_statement.c on line 1914 when 

      *(char*)Stmt->result[i].buffer != '\0'

      gets dereferenced and buffer is a null pointer.

      Attached are a test that currently crashes and a patch file that adds a NULL check

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            Lawrin Lawrin Novitsky
            pbraun Patrick Braun
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            Dates

              Created:
              Updated:
              Resolved:

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