dm ioctl: fix misbehavior if list_versions races with module loading
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.267 by commit 3a1c35d72dc0b34d1e746ed705790c0f630aa427. For more details please see the references link.