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

Vulnerability from cvelistv5 – Published: 2026-08-28 06:53 – Updated: 2026-08-29 06:22
VLAI
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
References
Impacted products
Vendor Product Version CPE status
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)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "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": [
            {
              "lessThan": "92fcd0f30dc8e51f252589b082d46851d295cc1a",
              "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"
            },
            {
              "lessThan": "b558e07708d886acfcf4b0391ed7a8546e81d326",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "47fb04c3826e1f90271d405523043d6708b9072a",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            },
            {
              "lessThan": "0502d5077e419427d80f4d46ba95d0067f5fb916",
              "status": "affected",
              "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/s1g.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "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",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.151",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.103",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "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
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"
        },
        {
          "url": "https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"
        },
        {
          "url": "https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"
        },
        {
          "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"
      }
    }
  },
  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80722",
      "date": "2026-09-23",
      "epss": "0.00242",
      "percentile": "0.15651"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-11T01:56:13.000Z",
      "cve": "CVE-2026-80722",
      "id": "msrc_CVE-2026-80722",
      "initial_release_date": "2026-08-29T01:05:42.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "wifi: mac80211: validate individual TWT params before driver setup",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-80722.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "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": [
                  {
                    "lessThan": "92fcd0f30dc8e51f252589b082d46851d295cc1a",
                    "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"
                  },
                  {
                    "lessThan": "b558e07708d886acfcf4b0391ed7a8546e81d326",
                    "status": "affected",
                    "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "47fb04c3826e1f90271d405523043d6708b9072a",
                    "status": "affected",
                    "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0502d5077e419427d80f4d46ba95d0067f5fb916",
                    "status": "affected",
                    "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "net/mac80211/s1g.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "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"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "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]"
          }
        ],
        "id": "CVE-2026-80722",
        "lastModified": "2026-08-29T07:16:54.203",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-08-28T08:16:58.000",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-31T16:12:00+00:00",
      "cve": "CVE-2026-80722",
      "id": "CVE-2026-80722",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mac80211: validate individual TWT params before driver setup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80722.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-15T01:09:25Z",
      "cve": "CVE-2026-80722",
      "id": "CVE-2026-80722",
      "initial_release_date": "2026-08-28T16:33:03Z",
      "product_status:first_fixed": "31",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "269",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80722",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80722.json",
      "version": "6"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.