{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98459",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.350Z",
        "datePublished": "2026-10-18T15:15:08.537Z",
        "dateUpdated": "2026-10-19T09:19:55.996Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:19:55.996Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: balance the parent hold in hci_bind_bis()\n\nhci_conn_link() takes a lifetime reference to its parent with\nhci_conn_get(), but only takes an operational hold on the child.\nhci_conn_unlink() later balances both a hold and a reference on the\nparent.\n\nThe SCO and CIS paths pass a parent acquired from a connect helper, so\nit already has a hold. For an additional BIS, hci_bind_bis() obtains the\nparent from hci_conn_hash_lookup_big(), which returns a bare pointer.\nUnlinking the child then drops the parent's existing hold and can\nschedule it for disconnection while its socket is still using it.\n\nTake a hold on the parent before linking it and drop that hold if linking\nfails. A successful link transfers the hold to hci_conn_unlink()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/hci_conn.c"
                    ],
                    "versions": [
                        {
                            "version": "11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9",
                            "lessThan": "ff28e6c67143c76ef50c3eac01f2fad411705f71",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fa224d0c094a458e9ebf5ea9b1c696136b7af427",
                            "lessThan": "03a91cdf6862fb351a74f035ad21e70112438552",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fa224d0c094a458e9ebf5ea9b1c696136b7af427",
                            "lessThan": "4e49206d9574a4c109480198e73aea34ad0ed7f6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fa224d0c094a458e9ebf5ea9b1c696136b7af427",
                            "lessThan": "bbcd723ee7a84bc868142fd57717af88e54e555a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fa224d0c094a458e9ebf5ea9b1c696136b7af427",
                            "lessThan": "4c94557dd02569efa6c1072a0439addaef9a5224",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.67",
                            "lessThan": "6.6.158",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/hci_conn.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "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": "6.18.55",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "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": "6.6.67",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.55"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ff28e6c67143c76ef50c3eac01f2fad411705f71"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03a91cdf6862fb351a74f035ad21e70112438552"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4e49206d9574a4c109480198e73aea34ad0ed7f6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bbcd723ee7a84bc868142fd57717af88e54e555a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4c94557dd02569efa6c1072a0439addaef9a5224"
                }
            ],
            "title": "Bluetooth: ISO: balance the parent hold in hci_bind_bis()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}