CVE-2026-43069 (GCVE-0-2026-43069)
Vulnerability from cvelistv5
Published
2026-05-05 15:23
Modified
2026-05-11 22:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ll: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hci_ll.c:587 download_firmware() warn: 'fw' from request_firmware() not released on lines: 544. In download_firmware(), if request_firmware() succeeds but the returned firmware content is invalid (no data or zero size), the function returns without releasing the firmware, resulting in a resource leak. Fix this by calling release_firmware() before returning when request_firmware() succeeded but the firmware content is invalid.
References
Impacted products
Vendor Product Version
Linux Linux Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
Version: 371805522f870986144fcd88727a47858e364a2c
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_ll.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "4.12"
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              "version": "0",
              "versionType": "semver"
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              "version": "6.6.131",
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              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_ll: Fix firmware leak on error path\n\nSmatch reports:\n\ndrivers/bluetooth/hci_ll.c:587 download_firmware() warn:\n\u0027fw\u0027 from request_firmware() not released on lines: 544.\n\nIn download_firmware(), if request_firmware() succeeds but the returned\nfirmware content is invalid (no data or zero size), the function returns\nwithout releasing the firmware, resulting in a resource leak.\n\nFix this by calling release_firmware() before returning when\nrequest_firmware() succeeded but the firmware content is invalid."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:17:07.130Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86"
        },
        {
          "url": "https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213"
        },
        {
          "url": "https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b"
        },
        {
          "url": "https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973"
        }
      ],
      "title": "Bluetooth: hci_ll: Fix firmware leak on error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43069",
    "datePublished": "2026-05-05T15:23:28.120Z",
    "dateReserved": "2026-05-01T14:12:55.982Z",
    "dateUpdated": "2026-05-11T22:17:07.130Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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