MySQL 8.0.38 does not start (segmentation fault)

After upgrading to MySQL 8.0.38, mysqld fails to start. The log at /var/log/mysqld.log shows:

mysqld got signal 11 ;
Most likely, you have hit a bug, but this error can also be caused by malfunctioning hardware.

This is a known bug in MySQL 8.0.38 and cannot be resolved while running that version.

Downgrade MySQL

On CentOS 7, AlmaLinux, Rocky Linux, or CloudLinux:

yum downgrade mysql-community-*

Lock the version

Since cPanel automatically updates system packages daily, you should lock the MySQL version until a fixed release is available.

Install the version lock package

CentOS 7 / CloudLinux 7:

yum install yum-versionlock

AlmaLinux 8 / Rocky Linux / CloudLinux 8:

dnf install python3-dnf-plugin-versionlock

Apply the version lock

yum versionlock mysql-community-server

Once a fixed MySQL version is released, remove the version lock so you continue to receive updates.