{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64562",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.796Z",
        "datePublished": "2026-08-04T06:23:21.855Z",
        "dateUpdated": "2026-08-04T06:23:21.855Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-04T06:23:21.855Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/vmx/nested.c"
                    ],
                    "versions": [
                        {
                            "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
                            "lessThan": "af56298e9d86e6098cd1d2e155cb2949b7c45412",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
                            "lessThan": "589419470030a89f16cf19300658b6dc644ca946",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
                            "lessThan": "8001d2ce9d9bd09118ce523aef595aa094573ae3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
                            "lessThan": "1dabef6e206568bf9d9ade74f6e56a48ea35695d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
                            "lessThan": "622ebfac01ba4f9c0060cebd41257fe46fc4a0b3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/vmx/nested.c"
                    ],
                    "versions": [
                        {
                            "version": "4.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.148",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.101",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.42",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.6",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2-rc5",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.6.148"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.12.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.18.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "7.1.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "7.2-rc5"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412"
                },
                {
                    "url": "https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3"
                }
            ],
            "title": "KVM: nVMX: Hide shadow VMCS right after VMCLEAR",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}