{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1360e5b6ce63d63d23223a659ca2bbafa30a53aa"
            },
            {
              "fixed": "4bbec25f47b930101294fd310c627c3f53e9661f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "07a9342b94a91b306ed1cf6aa8254aea210764c9"
            },
            {
              "fixed": "33d677d2e3713d98012c3dbd4a9207f7d785b854"
            },
            {
              "fixed": "23e8eb16820b866528fb300dc67fe3f67f00ef62"
            },
            {
              "fixed": "5cbf290b79351971f20c7a533247e8d58a3f970c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "bfec1e55314896bf4a4cfdb3a9ad4872be9f06ed"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.12.2"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.11.11"
            },
            {
              "fixed": "6.12"
            }
          ],
          "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": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53251.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync\n\nhci_get_route() returns a reference-counted hci_dev pointer via\nhci_dev_hold(). The function exits normally or with an error without ever\nreleasing it.",
  "id": "CVE-2026-53251",
  "modified": "2026-07-10T03:54:07.795338848Z",
  "published": "2026-06-25T08:39:43.290Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53251.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53251"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync"
}