{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98247",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.330Z",
        "datePublished": "2026-10-06T08:45:16.048Z",
        "dateUpdated": "2026-10-19T09:16:18.761Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:16:18.761Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_codec: validate vendor codec count length\n\nThe Read Local Supported Codecs parsers consume the variable-sized\nstandard codec array before parsing the vendor codec count.  Although the\ninitial reply-size check includes a vendor count byte in the fixed layout,\nit does not guarantee that the byte remains after the standard codec array.\n\nIf a controller reply ends immediately after that array, calculating the\nvendor codec array size reads vnd_codecs->num beyond the skb data.  Use\nskb_pull_data() to validate and consume each codec header before using its\ncount in both command variants."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/hci_codec.c"
                    ],
                    "versions": [
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "a6da782fefae611e68a1aa79644065fc8ca5abcd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "e4cfd3c4299105237458b27958bd7b0aa4c60795",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "f49a543d76d48f184b34225d9c0e2fc4cbdea8ec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "12a82819b0cada6e304790b1097f8f9006eb6123",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
                            "lessThan": "d0795cfd6f655f4de84868a4f4bb41a03f037b3d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/hci_codec.c"
                    ],
                    "versions": [
                        {
                            "version": "5.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.16",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.18.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "7.2.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6da782fefae611e68a1aa79644065fc8ca5abcd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e4cfd3c4299105237458b27958bd7b0aa4c60795"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f49a543d76d48f184b34225d9c0e2fc4cbdea8ec"
                },
                {
                    "url": "https://git.kernel.org/stable/c/12a82819b0cada6e304790b1097f8f9006eb6123"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d0795cfd6f655f4de84868a4f4bb41a03f037b3d"
                }
            ],
            "title": "Bluetooth: hci_codec: validate vendor codec count length",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}