CVE-2026-68081

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 pages if KVM synthesizes a nested VM-Exit due to invalid guest while emulating VMLAUNCH or VMRESUME. The invalid guest state path...

DEBIAN-CVE-2013-4551

Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for 1 VMLAUNCH and 2 VMRESUME, which allows local HVM guest users to cause a denial of service host crash via unspecified vectors related to "guest VMX instruction execution."...

CVE-2013-4551

Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for 1 VMLAUNCH and 2 VMRESUME, which allows local HVM guest users to cause a denial of service host crash via unspecified vectors related to "guest VMX instruction execution."...

Host crash due to guest VMX instruction execution

ISSUE DESCRIPTION Permission checks on the emulation paths intended for guests using nested virtualization for VMLAUNCH and VMRESUME were deferred too much. The hypervisor would try to use internal state which is not set up unless nested virtualization is actually enabled for a guest. IMPACT A...