CVE-2026-98185 (GCVE-0-2026-98185)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
wifi: mwifiex: validate scan response extents
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < 25217c5f6ce0bf3004f80c129464cd35fe9a420f (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < 48312f0085aa1577d6d41af2a079b34de17c1a57 (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < dccf5ecaad4d8d43c545921f20328e8f91af8698 (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < c4943323fda22ef27bb6479b9d328ae48c63f64c (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417 (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < 9cff2f39ed38a32070b08364c4c9346e85b8f9ec (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < 7106ad8b74f50cca1ef36131f327d2c78f556daa (git)
Affected: 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e , < 3687d7d48070838cc2953431b3a27717cab0aaf6 (git)
Create a notification for this product.
Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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    "dateReserved": "2026-09-25T10:25:14.323Z",
    "dateUpdated": "2026-10-06T08:44:27.654Z",
    "state": "PUBLISHED"
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            "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."
          }
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        "metrics": {},
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-08T23:34:30+00:00",
      "cve": "CVE-2026-98185",
      "id": "CVE-2026-98185",
      "initial_release_date": "2026-10-06T00:00:00+00:00",
      "product_status:known_affected": "263",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mwifiex: validate scan response extents",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98185.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-07T23:45:54Z",
      "cve": "CVE-2026-98185",
      "id": "CVE-2026-98185",
      "initial_release_date": "2026-10-07T23:45:54Z",
      "product_status:known_affected": "269",
      "product_status:known_not_affected": "78",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98185",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98185.json",
      "version": "2"
    }
  }
}



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