CVE-2024-50153 scsi: target: core: Fix null-ptr-deref in target_alloc_device()

In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix null-ptr-deref in targetallocdevice There is a null-ptr-deref issue reported by KASAN: BUG: KASAN: null-ptr-deref in targetallocdevice+0xbc4/0xbe0 targetcoremod ... kasanreport+0xb9/0xf0...