Linux kernel built with the KVM virtualisation support(CONFIG_KVM), with nested virtualisation(nVMX) feature enabled(nested=1), is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handle_vmon'.
A L1 guest user could use this flaw to leak host memory potentially resulting in DoS.
~ eleix (Security Padawan)
Reproducible: Didn't try