CVE-2013-6376: Linux Kernel

Medium severity, CVSS 5.2. EPSS: 1.1% chance of exploitation in the next 30 days.

The recalculate_apic_map function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (host OS crash) via a crafted ICR write operation in x2apic mode.

Affected products

• Linux Linux Kernel: up to and including 3.12.5; 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 2013-12-14. Last modified 2026-06-17.