An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
CREATE(Triage): {Link=https://nvd.nist.gov/vuln/detail/CVE-2018-20836 User=admin}
