{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "d9ce4de05df2385c19e2c7d12f529144e1a44af1"
            },
            {
              "fixed": "41c8c1c7923e86e0eb59cfb4279349112756a336"
            },
            {
              "fixed": "4ec17782fd186f901a7329605d11048b085b945a"
            },
            {
              "fixed": "be43e6b4043113c3b3cf887c3c8350f67140274c"
            },
            {
              "fixed": "85f8674cae82053f1e6bab295f6a8422cca14db5"
            },
            {
              "fixed": "8b4c412e001b0c670eb937beab491af974da55b3"
            },
            {
              "fixed": "a218bf69eb51fefe59a3976fa8925261141f681c"
            },
            {
              "fixed": "e83f5e24da741fa9405aeeff00b08c5ee7c37b88"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52918.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket.",
  "id": "CVE-2026-52918",
  "modified": "2026-07-10T03:54:42.999965070Z",
  "published": "2026-06-24T07:14:14.539Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52918.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52918"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "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: serialize accept_q access"
}