CVE-2026-97907 (GCVE-0-2026-97907)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:22 – Updated: 2026-09-25 10:22
VLAI
Title
Bluetooth: btrtl: Don't leak return code when parsing firmware format v2
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: Don't leak return code when parsing firmware format v2 When key_id from chip is zero, rtlbt_parse_firmware_v2() intentionally ignores all security headers. However, the implementation simply breaks from a switch statement and leaks uninitialized return code `rc' (if the first section is a security one) or the previous section's `rc'. Fix it by really skipping a loop with `continue'. For consistency and readability, also do the same for the default case.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa , < 90f3a142b5f8596a565b8e080d18a8050be6edef (git)
Affected: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa , < 422f6547259654bae690713614c794dd1e2c0a0b (git)
Affected: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa , < c4249cf6e80b1bd62a6a409aaabe760fe025dac3 (git)
Affected: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa , < 83e3e515fd261600ed8491fb0a8bcdfb115c904e (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btrtl.c"
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              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btrtl: Don\u0027t leak return code when parsing firmware format v2\n\nWhen key_id from chip is zero, rtlbt_parse_firmware_v2() intentionally\nignores all security headers. However, the implementation simply breaks\nfrom a switch statement and leaks uninitialized return code `rc\u0027 (if the\nfirst section is a security one) or the previous section\u0027s `rc\u0027.\n\nFix it by really skipping a loop with `continue\u0027. For consistency and\nreadability, also do the same for the default case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T10:22:32.244Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "dateReserved": "2026-09-25T10:18:58.200Z",
    "dateUpdated": "2026-09-25T10:22:32.244Z",
    "state": "PUBLISHED"
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      "date": "2026-09-28",
      "epss": "0.002",
      "percentile": "0.08793"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-27T23:09:47.000Z",
      "cve": "CVE-2026-97907",
      "id": "msrc_CVE-2026-97907",
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      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
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      "title": "Bluetooth: btrtl: Don\u0027t leak return code when parsing firmware format v2",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-97907.json",
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          }
        ],
        "id": "CVE-2026-97907",
        "lastModified": "2026-09-25T11:17:17.627",
        "metrics": {},
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.