Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-26838

Garbage returned if result set contains > 0xFFFF columns

    XMLWordPrintable

    Details

      Description

      This bug affects all versions and was found by Markus Makela.

      While text protocol uses length encoded int value for number of columns in a resultset, binary protocol uses a fixed 2 byte length (maximum 65535 columns).
      When executing a statement with 65540 columns (0xFFFF+5), the server returns no error, but returns column_count=5, followed by metadata (containing 65540 field descriptions)

        Attachments

          Activity

            People

            Assignee:
            sanja Oleksandr Byelkin
            Reporter:
            georg Georg Richter
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:

                Git Integration