FKIE_CVE-2026-43069

Vulnerability from fkie_nvd - Published: 2026-05-05 16:16 - Updated: 2026-05-06 13:08
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86
Impacted products
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{
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-43069",
  "lastModified": "2026-05-06T13:08:07.970",
  "metrics": {},
  "published": "2026-05-05T16:16:16.197",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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