CVE-2026-98159 (GCVE-0-2026-98159)
Vulnerability from cvelistv5
Published
2026-09-25 10:36
Modified
2026-10-19 09:14
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region count and each record length. A malformed image can make the region table pointer precede the firmware buffer, make the record loop fail to advance, or index phy->clc past its end. Validate the table and record bounds before dereferencing or copying.
References
Impacted products
Vendor Product Version
Linux Linux Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
Version: 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "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": "6.1.189",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: validate CLC firmware records\n\nThe CLC region is supplied by firmware, but the loader trusts the\nregion count and each record length. A malformed image can make the\nregion table pointer precede the firmware buffer, make the record loop\nfail to advance, or index phy-\u003eclc past its end. Validate the table and\nrecord bounds before dereferencing or copying."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:14:53.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05"
        },
        {
          "url": "https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02"
        },
        {
          "url": "https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322"
        },
        {
          "url": "https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033"
        }
      ],
      "title": "wifi: mt76: mt7921: validate CLC firmware records",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98159",
    "datePublished": "2026-09-25T10:36:28.206Z",
    "dateReserved": "2026-09-25T10:25:14.321Z",
    "dateUpdated": "2026-10-19T09:14:53.011Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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