{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23447",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:46.019Z",
        "datePublished": "2026-04-03T15:15:30.495Z",
        "dateUpdated": "2026-09-14T11:58:13.940Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-14T11:58:13.940Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check\n\nThe same bounds-check bug fixed for NDP16 in the previous patch also\nexists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated\nagainst the total skb length without accounting for ndpoffset, allowing\nout-of-bounds reads when the NDP32 is placed near the end of the NTB.\n\nAdd ndpoffset to the nframes bounds check and use struct_size_t() to\nexpress the NDP-plus-DPE-array size more clearly.\n\nCompile-tested only."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/usb/cdc_ncm.c"
                    ],
                    "versions": [
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "baf246d6680befde2086b1df9eb3aaba3fb6853f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "125f932a76a97904ef8a555f1dd53e5d0e288c54",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "af0d1613d6751489dbf9f69aac1123f0b1e566e5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "a5bd5a2710310c965ea4153cba4210988a3454e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "de70da1fb1d152e981ecb3157f7ec2b633005c16",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0fa81b304a7973a499f844176ca031109487dd31",
                            "lessThan": "77914255155e68a20aa41175edeecf8121dac391",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a270ca35a9499b58366d696d3290eaa4697a42db",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.14.317",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.285",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.245",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/usb/cdc_ncm.c"
                    ],
                    "versions": [
                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.78",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.20",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.10",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.7",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
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                                },
                                {
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                                    "versionEndExcluding": "7.0"
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                                    "versionStartIncluding": "4.14.317"
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                                {
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                                    "versionStartIncluding": "5.4.245"
                                }
                            ]
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/baf246d6680befde2086b1df9eb3aaba3fb6853f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54"
                },
                {
                    "url": "https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16"
                },
                {
                    "url": "https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391"
                }
            ],
            "title": "net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check",
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    }
}