{"id":"CVE-2026-64562","revision":"35c131c02a56448cab787c306ef30950","records":[{"revision":"35c131c02a56448cab787c306ef30950","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64562","aliases":[],"title":"KVM: nVMX: Hide shadow VMCS right after VMCLEAR","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Hide shadow VMCS right after VMCLEAR\n\nfree_nested() frees the shadow VMCS while vmcs01 still points to it. But\nbecause it is asynchronous with respect to loaded_vmcs_clear(), the vCPU\nmight migrate before the pointer is cleared and __loaded_vmcs_clear()\nmay then execute VMCLEAR.\n\nThe VMCS needs to stay attached until its explicit VMCLEAR completes, but\nthen it can be hidden and the page safely freed.","state":0,"publishedAt":"2026-08-04T06:23:21.855+00:00","modifiedAt":"2026-10-19T20:48:41.796+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/vmx/nested.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"b82c3144d8264265448292ca406f60bafeba3b6f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"4f50e6aec16f69627dbad5704d1e90a255d766a7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"dc3eecfa219ebc9d01eaf7d1abd1441efe884dab\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"af56298e9d86e6098cd1d2e155cb2949b7c45412\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"589419470030a89f16cf19300658b6dc644ca946\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"8001d2ce9d9bd09118ce523aef595aa094573ae3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"1dabef6e206568bf9d9ade74f6e56a48ea35695d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"355f4fb1405ec29d0fac49b4d41fcd78cbd455d5\",\n                            \"lessThan\": \"622ebfac01ba4f9c0060cebd41257fe46fc4a0b3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/vmx/nested.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.265\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.216\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.183\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.148\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.101\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.42\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.6\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/b82c3144d8264265448292ca406f60bafeba3b6f","https://git.kernel.org/stable/c/4f50e6aec16f69627dbad5704d1e90a255d766a7","https://git.kernel.org/stable/c/dc3eecfa219ebc9d01eaf7d1abd1441efe884dab","https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412","https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946","https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3","https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d","https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64562","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64562","identifiers":["CVE-2026-64562"]},"retained":false,"historicalAffected":[]}],"coverage":[]}