{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-68339",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-30T09:28:09.384Z",
        "datePublished": "2026-08-10T12:03:15.551Z",
        "dateUpdated": "2026-08-17T05:03:38.589Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:03:38.589Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: validate Realtek vendor event length\n\nbtusb_recv_event_realtek() reads the event code at data[0] and the Realtek\nsubevent code at data[2] before deciding whether to consume a vendor event\nas a coredump.\n\nFor example, the two-byte event ff 00 contains a complete vendor-event\nheader declaring zero parameters. The old classifier still reads a\nnonexistent third byte and can misclassify the event as a coredump if the\nadjacent byte is 0x34.\n\nRequire the HCI event header and first parameter to be present before\ninspecting the Realtek subevent code. Short events continue through the\nnormal HCI receive path, which owns their protocol validation."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/btusb.c"
                    ],
                    "versions": [
                        {
                            "version": "044014ce85a17c0b7fab8e5df0925792010c29b2",
                            "lessThan": "8de58bfa26e028f99271dde5a92107cd07f5e063",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "044014ce85a17c0b7fab8e5df0925792010c29b2",
                            "lessThan": "400267bab0f4076088e163e58cad2bb41c3cf5e7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "044014ce85a17c0b7fab8e5df0925792010c29b2",
                            "lessThan": "8881daaafadbe7fb2b7341d16a3949114409c90c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "044014ce85a17c0b7fab8e5df0925792010c29b2",
                            "lessThan": "24b0758193d70da47ef8b979153d2a181dbdf34e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "044014ce85a17c0b7fab8e5df0925792010c29b2",
                            "lessThan": "df541cd485ff80a5ddc579d99687bc7506df9851",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/btusb.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.148",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.101",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.42",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.6",
                            "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": "6.6",
                                    "versionEndExcluding": "6.6.148"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.12.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.18.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.1.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8de58bfa26e028f99271dde5a92107cd07f5e063"
                },
                {
                    "url": "https://git.kernel.org/stable/c/400267bab0f4076088e163e58cad2bb41c3cf5e7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8881daaafadbe7fb2b7341d16a3949114409c90c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/24b0758193d70da47ef8b979153d2a181dbdf34e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/df541cd485ff80a5ddc579d99687bc7506df9851"
                }
            ],
            "title": "Bluetooth: btusb: validate Realtek vendor event length",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}