{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "69997d50ec574be816b4ee8f9cee52ebbd53f8bd"
            },
            {
              "fixed": "e0e8b70207eaf27aee0a05ec5bf2d1b6bcb004d1"
            },
            {
              "fixed": "ed4c026cc4094dfb7a329b9d8df0ddd0be1b2458"
            },
            {
              "fixed": "e5fcca51177f224604e3a8c926ffd5edbeb58b09"
            },
            {
              "fixed": "0fcd4dad555c96e0bd3a1b8c569f989be85c7341"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "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-2026-98458.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: release unused CIS holds after channel attach\n\nhci_bind_cis() and hci_connect_cis() return one hci_conn hold for the\nISO layer.  A new channel association consumes that hold, which is\neventually released by iso_conn_free().\n\nThere are two cases where iso_chan_add() does not create an association:\nit returns success when the socket is already attached to the same\niso_conn, and it returns -EBUSY when another socket is attached.  The\nhold returned for the current call is unused in both cases.  This occurs\nwhen deferred setup calls iso_connect_cis() again for its existing\nsocket, or when another socket attempts to reuse the CIS.\n\nDetect the idempotent case while the connection is locked and release\nthe unused hold after iso_chan_add().  Also release it on -EBUSY.  Do not\ndrop it for other errors: a newly allocated iso_conn releases the\ntransferred hold when its last temporary reference is put.",
  "id": "CVE-2026-98458",
  "modified": "2026-10-20T02:30:42.821632452Z",
  "published": "2026-10-18T15:15:07.572Z",
  "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/0fcd4dad555c96e0bd3a1b8c569f989be85c7341"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0e8b70207eaf27aee0a05ec5bf2d1b6bcb004d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5fcca51177f224604e3a8c926ffd5edbeb58b09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed4c026cc4094dfb7a329b9d8df0ddd0be1b2458"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98458.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98458"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Bluetooth: ISO: release unused CIS holds after channel attach"
}