FKIE_CVE-2026-98185

Vulnerability from fkie_nvd - Published: 2026-10-06 09:18 - Updated: 2026-10-06 09:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: validate scan response extents mwifiex_ret_802_11_scan() subtracts the fixed response fields and the firmware-provided BSS length from resp->size without first proving that either extent fits. A short response or oversized BSS length can therefore underflow tlv_buf_size and make the TLV parser walk beyond the command response. Compute the fixed extent from the selected normal or background scan response. Validate that the fixed fields and BSS data fit before deriving the TLV extent and entering the parser.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25217c5f6ce0bf3004f80c129464cd35fe9a420f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3687d7d48070838cc2953431b3a27717cab0aaf6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/48312f0085aa1577d6d41af2a079b34de17c1a57
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7106ad8b74f50cca1ef36131f327d2c78f556daa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9cff2f39ed38a32070b08364c4c9346e85b8f9ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4943323fda22ef27bb6479b9d328ae48c63f64c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dccf5ecaad4d8d43c545921f20328e8f91af8698
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "25217c5f6ce0bf3004f80c129464cd35fe9a420f",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "48312f0085aa1577d6d41af2a079b34de17c1a57",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "dccf5ecaad4d8d43c545921f20328e8f91af8698",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "c4943323fda22ef27bb6479b9d328ae48c63f64c",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "9cff2f39ed38a32070b08364c4c9346e85b8f9ec",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "7106ad8b74f50cca1ef36131f327d2c78f556daa",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            },
            {
              "lessThan": "3687d7d48070838cc2953431b3a27717cab0aaf6",
              "status": "affected",
              "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.0"
            },
            {
              "lessThan": "3.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "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": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "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: mwifiex: validate scan response extents\n\nmwifiex_ret_802_11_scan() subtracts the fixed response fields and the\nfirmware-provided BSS length from resp-\u003esize without first proving that\neither extent fits. A short response or oversized BSS length can\ntherefore underflow tlv_buf_size and make the TLV parser walk beyond the\ncommand response.\n\nCompute the fixed extent from the selected normal or background scan\nresponse. Validate that the fixed fields and BSS data fit before deriving\nthe TLV extent and entering the parser."
    }
  ],
  "id": "CVE-2026-98185",
  "lastModified": "2026-10-06T09:18:03.380",
  "metrics": {},
  "published": "2026-10-06T09:18:03.380",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/25217c5f6ce0bf3004f80c129464cd35fe9a420f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3687d7d48070838cc2953431b3a27717cab0aaf6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/48312f0085aa1577d6d41af2a079b34de17c1a57"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7106ad8b74f50cca1ef36131f327d2c78f556daa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9cff2f39ed38a32070b08364c4c9346e85b8f9ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c4943323fda22ef27bb6479b9d328ae48c63f64c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dccf5ecaad4d8d43c545921f20328e8f91af8698"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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