{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46131",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.099Z",
        "datePublished": "2026-05-28T09:35:46.220Z",
        "dateUpdated": "2026-06-14T17:56:46.141Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:56:46.141Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/hyperv.c"
                    ],
                    "versions": [
                        {
                            "version": "aee738236dca0d0870789138ec494e15d6303566",
                            "lessThan": "971f17f5d91045404e3914029ea57c3da90179a4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aee738236dca0d0870789138ec494e15d6303566",
                            "lessThan": "45fc766bc756ff1d66f8ca026a9c4f7f764adfae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aee738236dca0d0870789138ec494e15d6303566",
                            "lessThan": "d6f4e217d663ede5becc2fd6cb612c749677387b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aee738236dca0d0870789138ec494e15d6303566",
                            "lessThan": "4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "aee738236dca0d0870789138ec494e15d6303566",
                            "lessThan": "464af6fc2b1dcc74005b7f58ee3812b17777efee",
                            "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/hyperv.c"
                    ],
                    "versions": [
                        {
                            "version": "6.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.88",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.30",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.7",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.2",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.12.88"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.18.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "7.0.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57"
                },
                {
                    "url": "https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee"
                }
            ],
            "title": "KVM: x86: check for nEPT/nNPT in slow flush hypercalls",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}