CVE-2026-99020 (GCVE-0-2026-99020)
Vulnerability from cvelistv5
Published
2026-10-23 12:20
Modified
2026-10-23 12:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: regulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4 The TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as n_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two entries, covering selectors 0x00-0x45. The linear range helpers loop over n_linear_ranges entries, so any lookup of a selector above 0x45 reads past the end of the array and treats whatever follows it as two more ranges. This happens on the normal registration path when the core checks the voltage constraints against every selector. TPS652G1 uses the same descriptors and is affected too. Use ARRAY_SIZE() so the count always matches the table.
References
Impacted products
Vendor Product Version
Linux Linux Version: 54308f24ce510a3ba1bf2e0ebc8b9c8a577b3c3b
Version: 00c826525fbae0230f6c3e9879e56d50267deb42
Version: 00c826525fbae0230f6c3e9879e56d50267deb42
Version: 00c826525fbae0230f6c3e9879e56d50267deb42
Version: 00c826525fbae0230f6c3e9879e56d50267deb42
Version: 6.6.157   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/regulator/tps6594-regulator.c"
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          "vendor": "Linux",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.2.11",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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\nregulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4\n\nThe TPS65224 BUCK2, BUCK3 and BUCK4 descriptors pass 4 as\nn_linear_ranges, but tps65224_bucks_2_3_4_ranges[] only has two\nentries, covering selectors 0x00-0x45.\n\nThe linear range helpers loop over n_linear_ranges entries, so any\nlookup of a selector above 0x45 reads past the end of the array and\ntreats whatever follows it as two more ranges. This happens on the\nnormal registration path when the core checks the voltage constraints\nagainst every selector. TPS652G1 uses the same descriptors and is\naffected too.\n\nUse ARRAY_SIZE() so the count always matches the table."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T12:20:57.162Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1ea151615a82fd94f25e38b2cc7eeac49112508b"
        },
        {
          "url": "https://git.kernel.org/stable/c/66b7da589b2ce44a02b8387c6160e9254685f34f"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6fbe9c6b39968a7696b9badef4bc29331a6376a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3423b56be12208a393274afb9a5e3d67fc58ce3"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f15518682c779b1014552cb2ccb4a2052f85f27"
        }
      ],
      "title": "regulator: tps6594-regulator: Fix n_linear_ranges for TPS65224 BUCK2-4",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-99020",
    "datePublished": "2026-10-23T12:20:57.162Z",
    "dateReserved": "2026-09-25T10:25:14.386Z",
    "dateUpdated": "2026-10-23T12:20:57.162Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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