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wifi: mwifiex: validate scan response extents

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-98185

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98185

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "25217c5f6ce0bf3004f80c129464cd35fe9a420f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "48312f0085aa1577d6d41af2a079b34de17c1a57",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "dccf5ecaad4d8d43c545921f20328e8f91af8698",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "c4943323fda22ef27bb6479b9d328ae48c63f64c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "9cff2f39ed38a32070b08364c4c9346e85b8f9ec",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "7106ad8b74f50cca1ef36131f327d2c78f556daa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e",
        "lessThan": "3687d7d48070838cc2953431b3a27717cab0aaf6",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/scan.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/scan.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98185

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38268 · Revision 1
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Publisher date
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