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.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20121106 CVE-2012-4461 -- kernel: kvm: invalid opcode oops on SET_SREGS with OSXSAVE bit set
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discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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