CVE-2026-97907 (GCVE-0-2026-97907)
Vulnerability from cvelistv5
Published
2026-09-25 10:22
Modified
2026-10-19 09:10
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
Version: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
Version: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
Version: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
Version: 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btrtl.c"
          ],
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
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              "versionType": "semver"
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
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              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
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                  "vulnerable": true
                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                {
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "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": "2026-10-19T09:10:33.668Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ba96047bba4a6101267cf4f6b3057cbc58e6c554"
        },
        {
          "url": "https://git.kernel.org/stable/c/90f3a142b5f8596a565b8e080d18a8050be6edef"
        },
        {
          "url": "https://git.kernel.org/stable/c/422f6547259654bae690713614c794dd1e2c0a0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4249cf6e80b1bd62a6a409aaabe760fe025dac3"
        },
        {
          "url": "https://git.kernel.org/stable/c/83e3e515fd261600ed8491fb0a8bcdfb115c904e"
        }
      ],
      "title": "Bluetooth: btrtl: Don\u0027t leak return code when parsing firmware format v2",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97907",
    "datePublished": "2026-09-25T10:22:32.244Z",
    "dateReserved": "2026-09-25T10:18:58.200Z",
    "dateUpdated": "2026-10-19T09:10:33.668Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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