CVE-2026-80722

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 92fcd0f30dc8e51f252589b082d46851d295cc1aaffected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 09d60d1f72e6598241490eb6c4e97245af895c09affected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ff558072d199c1d641d1561da622e67f780514deaffected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ade9e2f0f7f4d3089600ac2af8ef0b91746f923baffected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < b558e07708d886acfcf4b0391ed7a8546e81d326affected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 47fb04c3826e1f90271d405523043d6708b9072aaffected
LinuxLinuxf5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 0502d5077e419427d80f4d46ba95d0067f5fb916affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.216 <= 5.15.*unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.151 <= 6.6.*unaffected
LinuxLinux6.12.103 <= 6.12.*unaffected
LinuxLinux6.18.44 <= 6.18.*unaffected
LinuxLinux7.1.8 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References