CVE-2022-45869

A flaw was found in the Linux kernel in the KVM. A race condition in direct_page_fault allows guest OS users to cause a denial of service (host OS crash or host OS memory corruption) when nested virtualization and the TDP MMU are enabled.

Mitigation

This vulnerability can be mitigated by disabling the nested virtualization feature.

For Intel:

# modprobe -r kvm_intel  
# modprobe kvm_intel nested=0  

For AMD:

# modprobe -r kvm_amd  
# modprobe kvm_amd nested=0