{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b7ce436a5d798bc59e71797952566608a4b4626b"
            },
            {
              "fixed": "eb4adaa46e4c9e6efa7be3ce06398f4d7c39b57c"
            },
            {
              "fixed": "4aafb47301a799d3e01230d6568c4e93524e1523"
            },
            {
              "fixed": "c741977e413f5b49d306700820fb55ccb8269f5a"
            },
            {
              "fixed": "c6792c441767256030606eb82dca5d5fc360dd9a"
            },
            {
              "fixed": "bfce253f039eb5f58b810af267942a9f59207254"
            },
            {
              "fixed": "18174b166547ef41973cc19feb5ef9cab39a8def"
            },
            {
              "fixed": "801fb950cae7048eb7d83b18857d1ca37b8cd5a4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.15.0"
            },
            {
              "fixed": "5.15.222"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.189"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98290.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: avoid socket lock inversion in listener cleanup\n\nrfcomm_sock_cleanup_listen() closes unaccepted child sockets through\nrfcomm_sock_close(), which takes the child socket lock before\nrfcomm_dlc_close() acquires rfcomm_mutex. The RFCOMM worker takes these\nlocks in reverse order while handling connections and DLC state changes,\nso lockdep reports a possible deadlock.\n\nClose dequeued children without taking their socket lock. The accept queue\nowns a reference to each child, and bt_accept_dequeue() locks the child\nwhile unlinking it and clearing its parent pointer.\n\nDropping the child lock makes it important to prevent a concurrent\nrfcomm_connect_ind() from enqueueing a new child after cleanup observes an\nempty queue. Set a listening socket to BT_CLOSED while its lock is still\nheld, before dropping the lock and draining the queue. The state check in\nrfcomm_connect_ind() then rejects new children once cleanup starts.",
  "id": "CVE-2026-98290",
  "modified": "2026-10-09T02:30:27.595778999Z",
  "published": "2026-10-06T08:45:50.299Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18174b166547ef41973cc19feb5ef9cab39a8def"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4aafb47301a799d3e01230d6568c4e93524e1523"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/801fb950cae7048eb7d83b18857d1ca37b8cd5a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfce253f039eb5f58b810af267942a9f59207254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6792c441767256030606eb82dca5d5fc360dd9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c741977e413f5b49d306700820fb55ccb8269f5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb4adaa46e4c9e6efa7be3ce06398f4d7c39b57c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98290.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98290"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: RFCOMM: avoid socket lock inversion in listener cleanup"
}