CVE-2026-80722

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]

CVSS 3.1

8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-25)

Published

2026-08-28

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916
• https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09
• https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a
• https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a
• https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b

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