Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups

{
  "id": "9fbd11e599c14c1727b8a41944780fe8c764600281ab84cb6fb6c19c5cc20e2f",
  "url": "https://osv.dev/vulnerability/CVE-2026-68390",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups hci_conn_params_lookup requires hdev->lock be held, otherwise the list iteration or param access is not safe. Hold hdev->lock for params lookups in hci_sync.",
    "evidence": "osv:CVE-2026-68390",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.1.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-68390",
      "aliases": [
        "CVE-2026-68390"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c530569adc19b5f0c62955de41f067bad34e3fe0"
                },
                {
                  "fixed": "8d892bec1dd134761cabec6ba23fe315d0f20f98"
                },
                {
                  "fixed": "c363202ec841df36421ec280eea3d5f94f556143"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68390.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68390.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.197854836Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/8d892bec1dd134761cabec6ba23fe315d0f20f98",
        "https://git.kernel.org/stable/c/c363202ec841df36421ec280eea3d5f94f556143",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68390.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-68390",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68390.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-68390",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514375,
  "published_at": "2026-08-10T12:04:09.373+00:00"
}