FKIE_CVE-2026-98159

Vulnerability from fkie_nvd - Published: 2026-09-25 11:17 - Updated: 2026-09-25 11:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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": [
            {
              "lessThan": "602a950134ee2940136f60797e4457c3983b06ce",
              "status": "affected",
              "version": "23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125",
              "versionType": "git"
            },
            {
              "lessThan": "3896be051e928c891922d91de94c99519d215dff",
              "status": "affected",
              "version": "23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125",
              "versionType": "git"
            },
            {
              "lessThan": "3c505e2af16a9320f4355218394a955fbbc65322",
              "status": "affected",
              "version": "23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125",
              "versionType": "git"
            },
            {
              "lessThan": "9417c5818a0146980c2608fda94c908e604eb033",
              "status": "affected",
              "version": "23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125",
              "versionType": "git"
            }
          ]
        },
        {
          "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": "6.12.*",
              "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-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-98159",
  "lastModified": "2026-09-25T11:17:47.640",
  "metrics": {},
  "published": "2026-09-25T11:17:47.640",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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