{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9"
            },
            {
              "fixed": "ff28e6c67143c76ef50c3eac01f2fad411705f71"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "fa224d0c094a458e9ebf5ea9b1c696136b7af427"
            },
            {
              "fixed": "03a91cdf6862fb351a74f035ad21e70112438552"
            },
            {
              "fixed": "4e49206d9574a4c109480198e73aea34ad0ed7f6"
            },
            {
              "fixed": "bbcd723ee7a84bc868142fd57717af88e54e555a"
            },
            {
              "fixed": "4c94557dd02569efa6c1072a0439addaef9a5224"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.67"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98459.json"
  },
  "details": "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().",
  "id": "CVE-2026-98459",
  "modified": "2026-10-20T02:30:38.917391889Z",
  "published": "2026-10-18T15:15:08.537Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03a91cdf6862fb351a74f035ad21e70112438552"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c94557dd02569efa6c1072a0439addaef9a5224"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e49206d9574a4c109480198e73aea34ad0ed7f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbcd723ee7a84bc868142fd57717af88e54e555a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff28e6c67143c76ef50c3eac01f2fad411705f71"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98459.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98459"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Bluetooth: ISO: balance the parent hold in hci_bind_bis()"
}