drbd: only clone bio if we have a backing device
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 v6.0.6 by commit 05580a3bbf3cec677cb00a85dfeb21d6a9b48eaf, it was introduced in version v5.18 by commit c347a787e34cba0e5a80a04082dacaf259105605. For more details please see the references link.