CVE-2026-80722

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]

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EPSS — Exploit Prediction

0.0016

Probability of exploitation

0.06%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other 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 https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326 https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de

Frequently Asked Questions

What is 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]

How do I check if I'm vulnerable to CVE-2026-80722? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.