{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a106e50be74b0896583f4d010a69f9806e4194f4"
            },
            {
              "fixed": "7fd74178d4b16dcf47179da634ea9d7c02e3608b"
            },
            {
              "fixed": "aca377208e7f7322bf4e107cdec6e7d7e8aa7a88"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43021.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails\n\nWhen hci_cmd_sync_queue_once() returns with error, the destroy callback\nwill not be called.\n\nFix leaking references / memory on these failures.",
  "id": "CVE-2026-43021",
  "modified": "2026-08-12T03:51:10.147482509Z",
  "published": "2026-05-01T14:15:24.374Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43021.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43021"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails"
}