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wifi: mac80211: validate individual TWT params before driver setup

Type: advisorySource: Official CVE List1 source record

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]

Announced Source revision 1
Original source ↗

CVE-2026-80722

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-2026-80722

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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "92fcd0f30dc8e51f252589b082d46851d295cc1a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "09d60d1f72e6598241490eb6c4e97245af895c09",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "ff558072d199c1d641d1561da622e67f780514de",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "ade9e2f0f7f4d3089600ac2af8ef0b91746f923b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "b558e07708d886acfcf4b0391ed7a8546e81d326",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "47fb04c3826e1f90271d405523043d6708b9072a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
        "lessThan": "0502d5077e419427d80f4d46ba95d0067f5fb916",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/mac80211/s1g.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.15",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.183",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.151",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.103",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.44",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/mac80211/s1g.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80722

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#34369 · Revision 1
Added to Heist Feed
Publisher date
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