CVE-2012-4461: Linux Kernel

Low severity, CVSS 1.9. EPSS: 0.4% chance of exploitation in the next 30 days.

The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.

Affected products

• Linux Linux Kernel: up to and including 3.6.8; version 3.6 only; version 3.6.1 only; version 3.6.2 only; version 3.6.3 only; version 3.6.4 only; …

Published 2013-01-22. Last modified 2026-06-16.