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CVE-2018-20836

Description

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.

POC

Reference

- https://usn.ubuntu.com/4076-1/

Github

- https://github.com/ARPSyndicate/cvemon