CVE-2018-20784: kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service

Severity: Critical

CVSS Score: 9.8

In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.