CVE-2019-15921: Linux Kernel

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in the Linux kernel before 5.0.6. There is a memory leak issue when idr_alloc() fails in genl_register_family() in net/netlink/genetlink.c.

Affected products

• Linux Linux Kernel: before 5.0.6 (fixed in 5.0.6)
• Opensuse Leap: version 15.0 only; version 15.1 only

Published 2019-09-04. Last modified 2026-06-17.