Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-64562

Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
04/08/2026
Última modificación:
08/08/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> KVM: nVMX: Hide shadow VMCS right after VMCLEAR<br /> <br /> free_nested() frees the shadow VMCS while vmcs01 still points to it. But<br /> because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU<br /> might migrate before the pointer is cleared and __loaded_vmcs_clear()<br /> may then execute VMCLEAR.<br /> <br /> The VMCS needs to stay attached until its explicit VMCLEAR completes, but<br /> then it can be hidden and the page safely freed.