In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier In the case that kvm_translate_vncr() races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to kvm_release_faultin_page() for the unused PFN.
https://git.kernel.org/stable/c/cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7
https://git.kernel.org/stable/c/9f76b039a72d7e06374aa96862f0232ed53f7787
https://git.kernel.org/stable/c/0c93681aea0a1b8be14730a88abe77c840272e41