CVE-2012-1179: Linux Kernel

Medium severity, CVSS 5.2. EPSS: 0.6% chance of exploitation in the next 30 days.

The Linux kernel before 3.3.1, when KVM is used, allows guest OS users to cause a denial of service (host OS crash) by leveraging administrative access to the guest OS, related to the pmd_none_or_clear_bad function and page faults for huge pages.

Affected products

• Linux Linux Kernel: up to and including 3.3

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