CVE-2019-19462: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

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 8.0 only; version 9.0 only; version 10.0 only
• Linux Linux Kernel: up to and including 5.4.1
• Netapp Active Iq Unified Manager: from 9.5
• Netapp Hci Compute Node: affected versions not specified
• Netapp Hci Management Node: affected versions not specified
• Netapp Hci Storage Node: affected versions not specified
• Netapp Solidfire: affected versions not specified
• Opensuse Leap: version 15.1 only; version 15.2 only

Published 2019-11-30. Last modified 2026-10-08.