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CVE-2026-99020

Full vulnerability record from the local CVENow database.

Description

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.

Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-10-23 13:17:24.897000
Last modified
2026-10-23 13:17:24.897000
View original CVE JSON
{
  "id": "CVE-2026-99020",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-23T13:17:24.897",
  "lastModified": "2026-10-23T13:17:24.897",
  "vulnStatus": "Received",
  "cveTags": [],
  "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/regulator/tps6594-regulator.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "54308f24ce510a3ba1bf2e0ebc8b9c8a577b3c3b",
              "lessThan": "1ea151615a82fd94f25e38b2cc7eeac49112508b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "00c826525fbae0230f6c3e9879e56d50267deb42",
              "lessThan": "66b7da589b2ce44a02b8387c6160e9254685f34f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "00c826525fbae0230f6c3e9879e56d50267deb42",
              "lessThan": "f6fbe9c6b39968a7696b9badef4bc29331a6376a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "00c826525fbae0230f6c3e9879e56d50267deb42",
              "lessThan": "f3423b56be12208a393274afb9a5e3d67fc58ce3",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "00c826525fbae0230f6c3e9879e56d50267deb42",
              "lessThan": "2f15518682c779b1014552cb2ccb4a2052f85f27",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "6.6.157",
              "lessThan": "6.6.160",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/regulator/tps6594-regulator.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.10",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.10",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.113",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.57",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.11",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1ea151615a82fd94f25e38b2cc7eeac49112508b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2f15518682c779b1014552cb2ccb4a2052f85f27",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/66b7da589b2ce44a02b8387c6160e9254685f34f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f3423b56be12208a393274afb9a5e3d67fc58ce3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f6fbe9c6b39968a7696b9badef4bc29331a6376a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}