CVE-2026-80722

wifi: mac80211: validate individual TWT params before driver setup

HIGH
8.8
CVSS Score
Published: August 28, 2026 at 06:53 AM UTC
Updated: October 16, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.15f5a4c24e689f54e66201f04d343bdd2e8a1d7923
Vendor states this is fixed in 0502d5077e419427d80f4d46ba95d0067f5fb916 (fixed)
Vendor states this is fixed in 09d60d1f72e6598241490eb6c4e97245af895c09 (fixed)
Vendor states this is fixed in 47fb04c3826e1f90271d405523043d6708b9072a (fixed)
Vendor states this is fixed in 92fcd0f30dc8e51f252589b082d46851d295cc1a (fixed)
Vendor states this is fixed in ade9e2f0f7f4d3089600ac2af8ef0b91746f923b (fixed)
Vendor states this is fixed in b558e07708d886acfcf4b0391ed7a8546e81d326 (fixed)
Vendor states this is fixed in ff558072d199c1d641d1561da622e67f780514de (fixed)
Vendor states this is fixed in 5.15 (unaffected)
Vendor states this is fixed in 5.15.216 (unaffected)
Vendor states this is fixed in 6.1.183 (unaffected)
Vendor states this is fixed in 6.12.103 (unaffected)
Vendor states this is fixed in 6.18.44 (unaffected)
Vendor states this is fixed in 6.6.151 (unaffected)
Vendor states this is fixed in 7.1.8 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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