{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46071",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.095Z",
        "datePublished": "2026-05-27T12:57:57.316Z",
        "dateUpdated": "2026-06-14T17:52:10.514Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:52:10.514Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Avoid clearing VMCB_LBR in vmcb12\n\nsvm_copy_lbrs() always marks VMCB_LBR dirty in the destination VMCB.\nHowever, nested_svm_vmexit() uses it to copy LBRs to vmcb12, and\nclearing clean bits in vmcb12 is not architecturally defined.\n\nMove vmcb_mark_dirty() to callers and drop it for vmcb12.\n\nThis also facilitates incoming refactoring that does not pass the entire\nVMCB to svm_copy_lbrs()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/nested.c",
                        "arch/x86/kvm/svm/svm.c"
                    ],
                    "versions": [
                        {
                            "version": "d20c796ca3709801f8a7fa36e8770a3dd8ebd34e",
                            "lessThan": "a3f0981a5a0e0bd51ad74cc7d9eed32294b24002",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d20c796ca3709801f8a7fa36e8770a3dd8ebd34e",
                            "lessThan": "9efe23568806d1cd06f7d146f9b3037b8d585a9f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d20c796ca3709801f8a7fa36e8770a3dd8ebd34e",
                            "lessThan": "b53ab5167a81537777ac780bbd93d32613aa3bda",
                            "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/svm/nested.c",
                        "arch/x86/kvm/svm/svm.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "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": "5.19",
                                    "versionEndExcluding": "6.18.27"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a3f0981a5a0e0bd51ad74cc7d9eed32294b24002"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9efe23568806d1cd06f7d146f9b3037b8d585a9f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b53ab5167a81537777ac780bbd93d32613aa3bda"
                }
            ],
            "title": "KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}