CVE-2021-47337

The CVE-2021-47337 issue is in the Linux kernel SCSI core path: when an error arises during scsi_host_alloc() and the error-handling ehandler thread fails to spawn, shost->ehandler may be set to ERR_PTR(-ENOMEM) and scsi_host_dev_release() would call kthread_stop() on a NULL/invalid pointer, r...