{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "65f53e9802dbfae0e5758a91793c3f5f8bece49b"
            },
            {
              "fixed": "390b5db3ff8745187f094c4e915663b7b1f98944"
            },
            {
              "fixed": "46a88784c4c9b96954dd86f747ce93f65efa1302"
            },
            {
              "fixed": "551ae773ec64045b4e72099132654887e0270bcc"
            },
            {
              "fixed": "ae215c5b6422d8eda443b861b124bd1be6969c31"
            },
            {
              "fixed": "df22adc7eafc22e651561813c11dc51a796b12ee"
            },
            {
              "fixed": "a6b22dbd80926556290ad2243be25218d6956a19"
            },
            {
              "fixed": "563a8573047182f550b1e1e030615755cd8c41da"
            },
            {
              "fixed": "bb067a99a0356196c0b89a95721985485ebce5a5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.13.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64408.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: pin L2CAP connection during netdev registration\n\nbnep_add_connection() reads the L2CAP connection without holding the\nchannel lock, then passes its HCI device to register_netdev(). Controller\nteardown can clear and release that connection concurrently, leaving the\nnetwork device registration path to dereference a freed parent device.\n\nTake a reference to the L2CAP connection while holding the channel lock.\nRetain it until register_netdev() has taken the parent device reference.",
  "id": "CVE-2026-64408",
  "modified": "2026-07-28T03:55:43.633638480Z",
  "published": "2026-07-25T08:50:49.807Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64408.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64408"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: bnep: pin L2CAP connection during netdev registration"
}