CVE-2012-5517: Linux Kernel

Medium severity, CVSS 4.0. EPSS: 0.4% chance of exploitation in the next 30 days.

The online_pages function in mm/memory_hotplug.c in the Linux kernel before 3.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact in opportunistic circumstances by using memory that was hot-added by an administrator.

Affected products

• Linux Linux Kernel: up to and including 3.5.7; version 3.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; …

Published 2012-12-21. Last modified 2026-06-16.