CVE-2020-25285: Canonical Ubuntu Linux

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 20.04 only
• Debian Debian Linux: version 9.0 only
• Linux Linux Kernel: before 5.8.8 (fixed in 5.8.8)

Published 2020-09-13. Last modified 2026-06-17.