Oleksandr Byelkin 1df9d73168 MDEV-41186 Fix stack-buffer-overflow in make_unique_constraint_name ...

A multi-byte PERIOD name at the 64-character limit (192 bytes) filled
the name buffer exactly, leaving no room for the '_N' suffix appended
when generating a unique name for the implicit CHECK constraint.

Truncate on a character boundary, but only once a suffix is actually
needed (mirroring make_unique_key_name), so a non-colliding name is
never altered.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

2026-10-01 15:52:50 +02:00

446 KiB

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