{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64128",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.036Z",
        "datePublished": "2026-07-19T15:40:24.678Z",
        "dateUpdated": "2026-07-19T15:40:24.678Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T15:40:24.678Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: drop ISO_END frames received without prior ISO_START\n\nISO data PDUs carry a packet-boundary flag indicating START, CONT, END\nor SINGLE. The ISO_CONT branch of iso_recv() guards against a missing\nISO_START by checking conn->rx_len before touching conn->rx_skb, but\nISO_END does not.\n\nIf a peer sends an ISO_END as the first packet on a fresh ISO\nconnection, conn->rx_skb is still NULL and conn->rx_len is zero, so\nskb_put(conn->rx_skb, ...) dereferences NULL and oopses. For BIS,\nwhere receivers sync to a broadcaster without pairing, any broadcaster\non the air can trigger this.\n\nMirror the ISO_CONT check at the top of ISO_END so a stray end fragment\nis logged and dropped instead of crashing the host."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/iso.c"
                    ],
                    "versions": [
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "1c3d1e1696b72579b970e17999c503a14535205b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "3af41ee7ebecb0d5c8a504861f6cfad31345310f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "39f4a82e80c8f5ed2d6952d73fbafc895721a728",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "61f2410a96dee808029e2ae4d6ef2dd635f3477f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "e3a799881c12d27596232636a607e2e3fa448d63",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ccf74f2390d60a2f9a75ef496d2564abb478f46a",
                            "lessThan": "84c24fb151fc1179355296d7ff29129ac7c42129",
                            "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/iso.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.142",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.92",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.34",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.11",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.0",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.6.142"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.92"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.18.34"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.0.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1c3d1e1696b72579b970e17999c503a14535205b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3af41ee7ebecb0d5c8a504861f6cfad31345310f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/39f4a82e80c8f5ed2d6952d73fbafc895721a728"
                },
                {
                    "url": "https://git.kernel.org/stable/c/61f2410a96dee808029e2ae4d6ef2dd635f3477f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e3a799881c12d27596232636a607e2e3fa448d63"
                },
                {
                    "url": "https://git.kernel.org/stable/c/84c24fb151fc1179355296d7ff29129ac7c42129"
                }
            ],
            "title": "Bluetooth: ISO: drop ISO_END frames received without prior ISO_START",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}