CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's KVM (Kernel-based Virtual Machine) component, specifically related to the handling of shadow VMCS (Virtual Machine Control Structures) during the VMCLEAR operation. An attacker could exploit this flaw to potentially execute unauthorized commands or disrupt virtual machine operations, leading to system instability or data exposure. Organizations utilizing Linux-based systems with KVM should prioritize patching this vulnerability to safeguard their virtualized environments.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU might migrate before the pointer is cleared and __loaded_vmcs_clear() may then execute VMCLEAR. The VMCS needs to stay attached until its explicit VMCLEAR completes, but then it can be hidden and the page safely freed.