{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64288",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.778Z",
        "datePublished": "2026-07-25T08:49:28.789Z",
        "dateUpdated": "2026-08-17T04:52:44.195Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:52:44.195Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB\n\nVNCR TLB invalidation occurs from MMU notifiers or TLBI instructions,\nand either can race against a vcpu not being onlined yet (no pseudo-TLB\nallocated). Similarly, the TLB might be invalid, and the invalidation\nshould be skipped in this case.\n\nBoth kvm_invalidate_vncr_ipa() and kvm_invalidate_vncr_va() are\nexpected to perform the same checks, except that the latter doesn't\ncheck for the allocation and blindly dereferences the pointer.\n\nSolve this by introducing a new iterator built on top of the usual\nkvm_for_each_vcpu() that checks for both of the above conditions,\nand convert the two users to it."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/kvm/nested.c"
                    ],
                    "versions": [
                        {
                            "version": "4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929",
                            "lessThan": "7c73a269a880b1399baacfb9d521415e6ef7ecc2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929",
                            "lessThan": "5fd30133af864a1de0a0bd87d3fe3cf23205fbc7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929",
                            "lessThan": "4be6cbeb93d26994bd1827ddbce391e3c4395c8f",
                            "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/arm64/kvm/nested.c"
                    ],
                    "versions": [
                        {
                            "version": "6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.16",
                                    "versionEndExcluding": "6.18.39"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "7.1.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7c73a269a880b1399baacfb9d521415e6ef7ecc2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5fd30133af864a1de0a0bd87d3fe3cf23205fbc7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4be6cbeb93d26994bd1827ddbce391e3c4395c8f"
                }
            ],
            "title": "KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}