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  1. MariaDB Server
  2. MDEV-40571

insufficient validation of frm data when opening a table

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Details

    • Can result in hang or crash
    • Q3/2026 Server Development

    Description

      frm reading/parsing code did not validate key_part->fieldnr value it was reading from the frm. invalid values could cause server crashes or OOB reads.

      Reported by pinebudweiser and Ph4nt0m

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-40953 'key_part_end' may be used uninitialized [-Werror=maybe-uninitialized]

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Open

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              serg Sergei Golubchik
              serg Sergei Golubchik
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