MySQL 8.0.46 Release notes: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-46.html Known issue: s390x-specific issue - zlib with DFLTCC compressed pages with low KEY_BLOCK_SIZE values can cause ER_TOO_BIG_ROWSIZE errors in tables near the column count and their size limits.

Source: Fedora 42 mysql8.0 Critical Update DoS Issues FEDORA-2026-b78d5204fe