CVE-2019-20934: Linux Kernel

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

Affected products

• Linux Linux Kernel: from 4.19, before 4.19.64 (fixed in 4.19.64); from 5.2, up to and including 5.2.17; version 5.3 only

Published 2020-11-28. Last modified 2026-06-17.