nbd: Fix hung when signal interrupts nbdstartdevice_ioctl()
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 v5.4.220 by commit 3575949513ea3b387b30dac1e69468a923c86caf. For more details please see the references link.