Denial of Service Vulnerability in Linux Kernel's KVM Subsystem

CVE-2012-4461 · LOW Severity

AV:L/AC:M/AU:N/C:N/I:N/A:P

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.

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