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 v5.15.75 by commit c0d73be0af8c1310713bc39a8d7a22e35084e14f. For more details please see the references link.