CVE-2026-80722

wifi: mac80211: validate individual TWT params before driver setup

State: Published
Severity: 8.8 High
Published: Aug 28, 2026
Updated: Oct 16, 2026
Reserved: Aug 26, 2026

Description

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]

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 92fcd0f30dc8e51f252589b082d46851d295cc1aAffected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 09d60d1f72e6598241490eb6c4e97245af895c09Affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before ff558072d199c1d641d1561da622e67f780514deAffected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before ade9e2f0f7f4d3089600ac2af8ef0b91746f923bAffected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before b558e07708d886acfcf4b0391ed7a8546e81d326Affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 47fb04c3826e1f90271d405523043d6708b9072aAffected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 0502d5077e419427d80f4d46ba95d0067f5fb916Affected
LinuxLinux	5.15Affected before 5.15Not affected 5.15.216 through 5.15.Not affected 6.1.183 through 6.1.Not affected 6.6.151 through 6.6.Not affected 6.12.103 through 6.12.Not affected 6.18.44 through 6.18.Not affected 7.1.8 through 7.1.Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 92fcd0f30dc8e51f252589b082d46851d295cc1aAffected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 09d60d1f72e6598241490eb6c4e97245af895c09Affected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before ff558072d199c1d641d1561da622e67f780514deAffected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before ade9e2f0f7f4d3089600ac2af8ef0b91746f923bAffected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before b558e07708d886acfcf4b0391ed7a8546e81d326Affected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 47fb04c3826e1f90271d405523043d6708b9072aAffected
f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to before 0502d5077e419427d80f4d46ba95d0067f5fb916Affected

LinuxLinux

5.15Affected
before 5.15Not affected
5.15.216 through 5.15.*Not affected
6.1.183 through 6.1.*Not affected
6.6.151 through 6.6.*Not affected
6.12.103 through 6.12.*Not affected
6.18.44 through 6.18.*Not affected
7.1.8 through 7.1.*Not affected
7.2 and laterNot affected

References

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