CVE-2011-4621: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The Linux kernel before 2.6.37 does not properly implement a certain clock-update optimization, which allows local users to cause a denial of service (system hang) via an application that executes code in a loop.

Affected products

• Linux Linux Kernel: before 2.6.37 (fixed in 2.6.37)

Published 2012-05-17. Last modified 2026-06-16.