Vulnerability-Lookup

GHSA-H7FR-F2M3-RHPF

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-28 09:31

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: validate individual TWT params before driver setup

ieee80211_process_rx_twt_action() only partially validates a received S1G TWT setup frame before queueing it.

An individual agreement can therefore reach ieee80211_s1g_rx_twt_setup() with twt->length too short for the full struct ieee80211_twt_params.

The individual path passes twt to drv_add_twt_setup(). Both the tracepoint and the driver callback consume the complete parameters block, not merely req_type. Do not pass a short individual agreement to the driver. Broadcast agreements remain unchanged because they are rejected locally after accessing only req_type.

[edit commit message to not overclaim lack of validation nor understate driver impact]

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80722"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: validate individual TWT params before driver setup\n\nieee80211_process_rx_twt_action() only partially validates a received\nS1G TWT setup frame before queueing it.\n\nAn individual agreement can therefore reach ieee80211_s1g_rx_twt_setup()\nwith twt-\u003elength too short for the full struct ieee80211_twt_params.\n\nThe individual path passes twt to drv_add_twt_setup(). Both the tracepoint\nand the driver callback consume the complete parameters block, not merely\nreq_type. Do not pass a short individual agreement to the driver.\nBroadcast agreements remain unchanged because they are rejected locally\nafter accessing only req_type.\n\n[edit commit message to not overclaim lack of validation nor\n understate driver impact]",
  "id": "GHSA-h7fr-f2m3-rhpf",
  "modified": "2026-08-28T09:31:50Z",
  "published": "2026-08-28T09:31:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80722"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80722 (GCVE-0-2026-80722)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:53 – Updated: 2026-08-29 06:22

Title

wifi: mac80211: validate individual TWT params before driver setup

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate individual TWT params before driver setup ieee80211_process_rx_twt_action() only partially validates a received S1G TWT setup frame before queueing it. An individual agreement can therefore reach ieee80211_s1g_rx_twt_setup() with twt->length too short for the full struct ieee80211_twt_params. The individual path passes twt to drv_add_twt_setup(). Both the tracepoint and the driver callback consume the complete parameters block, not merely req_type. Do not pass a short individual agreement to the driver. Broadcast agreements remain unchanged because they are rejected locally after accessing only req_type. [edit commit message to not overclaim lack of validation nor understate driver impact]

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/92fcd0f30dc8e51f2…
https://git.kernel.org/stable/c/09d60d1f72e659824…
https://git.kernel.org/stable/c/ff558072d199c1d64…
https://git.kernel.org/stable/c/ade9e2f0f7f4d3089…
https://git.kernel.org/stable/c/b558e07708d886acf…
https://git.kernel.org/stable/c/47fb04c3826e1f902…
https://git.kernel.org/stable/c/0502d5077e419427d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < 92fcd0f30dc8e51f252589b082d46851d295cc1a (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < 09d60d1f72e6598241490eb6c4e97245af895c09 (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < ff558072d199c1d641d1561da622e67f780514de (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < ade9e2f0f7f4d3089600ac2af8ef0b91746f923b (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < b558e07708d886acfcf4b0391ed7a8546e81d326 (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < 47fb04c3826e1f90271d405523043d6708b9072a (git) Affected: f5a4c24e689f54e66201f04d343bdd2e8a1d7923 , < 0502d5077e419427d80f4d46ba95d0067f5fb916 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.151 , ≤ 6.6.* (semver) Unaffected: 6.12.103 , ≤ 6.12.* (semver) Unaffected: 6.18.44 , ≤ 6.18.* (semver) Unaffected: 7.1.8 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/s1g.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "09d60d1f72e6598241490eb6c4e97245af895c09",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "ff558072d199c1d641d1561da622e67f780514de",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "ade9e2f0f7f4d3089600ac2af8ef0b91746f923b",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
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            {
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              "versionType": "git"
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              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "0502d5077e419427d80f4d46ba95d0067f5fb916",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            }
          ]
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.216",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.183",
                  "versionStartIncluding": "5.15",
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                },
                {
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.44",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.8",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: validate individual TWT params before driver setup\n\nieee80211_process_rx_twt_action() only partially validates a received\nS1G TWT setup frame before queueing it.\n\nAn individual agreement can therefore reach ieee80211_s1g_rx_twt_setup()\nwith twt-\u003elength too short for the full struct ieee80211_twt_params.\n\nThe individual path passes twt to drv_add_twt_setup(). Both the tracepoint\nand the driver callback consume the complete parameters block, not merely\nreq_type. Do not pass a short individual agreement to the driver.\nBroadcast agreements remain unchanged because they are rejected locally\nafter accessing only req_type.\n\n[edit commit message to not overclaim lack of validation nor\n understate driver impact]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - Malformed S1G TWT setup action frames reach mac80211 via normal WiFi RX (driver -\u003e ieee80211_rx_h_action -\u003e ieee80211_process_rx_twt_action -\u003e ieee80211_s1g_rx_twt_setup); an adjacent attacker within radio range sends crafted 802.11 management frames to a vulnerable AP.\nAC:L - The attacker fully controls the TWT element length and payload; ieee80211_process_rx_twt_action() only validates two bytes of req_type before queueing, so a short individual agreement reliably reaches drv_add_twt_setup() without races or victim-specific timing.\nPR:N - No Linux privileges on the victim AP are required; exploitation needs only normal 802.11 association as a WiFi client to an S1G AP with twt_responder enabled and a driver implementing add_twt_setup (e.g. MediaTek mt7915/mt7996).\nUI:N - No deliberate victim action is needed beyond operating an S1G AP that accepts associated stations; the attacker directly injects the malformed TWT setup frame and mac80211 processes it automatically on receive.\nS:U - Impact is kernel/driver heap memory corruption on the AP host within the same security authority; it does not cross VM, IOMMU, or sandbox boundaries (standard kernel compromise scope).\nC:H - drv_add_twt_setup(), its tracepoint, and driver callbacks read the full ieee80211_twt_params (twt, min_twt_dur, mantissa, channel) beyond the validated skb bounds, causing out-of-bounds reads of adjacent skb/heap memory that can disclose kernel data.\nI:H - MediaTek add_twt_setup() handlers write twt_agrt fields (req_type, min_twt_dur, twt) past the undersized params block into skb tail/heap memory, providing out-of-bounds write primitives exploitable for further memory corruption or code execution.\nA:H - Out-of-bounds access in mac80211/driver TWT setup can kernel-oops the AP or hang/crash WiFi firmware when corrupted parameters are programmed into hardware TWT state from attacker-controlled short frames."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T06:22:38.281Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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          "url": "https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"
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        },
        {
          "url": "https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"
        },
        {
          "url": "https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"
        }
      ],
      "title": "wifi: mac80211: validate individual TWT params before driver setup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80722",
    "datePublished": "2026-08-28T06:53:17.886Z",
    "dateReserved": "2026-08-26T14:34:25.788Z",
    "dateUpdated": "2026-08-29T06:22:38.281Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-H7FR-F2M3-RHPF

CVE-2026-80722 (GCVE-0-2026-80722)

Tags

Sightings

Nomenclature