{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40067",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.159Z",
        "datePublished": "2025-10-28T11:48:37.034Z",
        "dateUpdated": "2026-07-30T06:00:21.734Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-30T06:00:21.734Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist\n\nIndex allocation requires at least one bit in the $BITMAP attribute to\ntrack usage of index entries. If the bitmap is empty while index blocks\nare already present, this reflects on-disk corruption.\n\nsyzbot triggered this condition using a malformed NTFS image. During a\nrename() operation involving a long filename (which spans multiple\nindex entries), the empty bitmap allowed the name to be added without\nvalid tracking. Subsequent deletion of the original entry failed with\n-ENOENT, due to unexpected index state.\n\nReject such cases by verifying that the bitmap is not empty when index\nblocks exist."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ntfs3/index.c"
                    ],
                    "versions": [
                        {
                            "version": "b35a50d639ca5259466ef5fea85529bb4fb17d5b",
                            "lessThan": "978aac54e93ea35aab20b32ae393d3d33964e7ae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3ed2cc6a6e93fbeb8c0cafce1e7fb1f64a331dcc",
                            "lessThan": "be66551da203862c689c12e1d35ce87217c017c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d99208b91933fd2a58ed9ed321af07dacd06ddc3",
                            "lessThan": "039ddf353cc33f6546a87ec1ac3210637d714bec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d99208b91933fd2a58ed9ed321af07dacd06ddc3",
                            "lessThan": "0dc7117da8f92dd5fe077d712a756eccbe377d40",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "358d4f821c03add421a4c49290538a705852ccf1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a285395020780adac1ffbc844069c3d700bf007a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.102",
                            "lessThan": "6.6.112",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.42",
                            "lessThan": "6.12.53",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.10",
                            "lessThan": "6.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.1",
                            "lessThan": "6.17",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ntfs3/index.c"
                    ],
                    "versions": [
                        {
                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.112",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.53",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.3",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "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": "6.6.102",
                                    "versionEndExcluding": "6.6.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.42",
                                    "versionEndExcluding": "6.12.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "6.17.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "6.18"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.16.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/978aac54e93ea35aab20b32ae393d3d33964e7ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/be66551da203862c689c12e1d35ce87217c017c1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/039ddf353cc33f6546a87ec1ac3210637d714bec"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0dc7117da8f92dd5fe077d712a756eccbe377d40"
                }
            ],
            "title": "fs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}