CVE-2026-80722 PUBLISHED

wifi: mac80211: validate individual TWT params before driver setup

Assigner: Linux
Reserved: 26.08.2026 Published: 28.08.2026 Updated: 28.08.2026

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]

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to 92fcd0f30dc8e51f252589b082d46851d295cc1a (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to 09d60d1f72e6598241490eb6c4e97245af895c09 (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to ff558072d199c1d641d1561da622e67f780514de (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to ade9e2f0f7f4d3089600ac2af8ef0b91746f923b (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to b558e07708d886acfcf4b0391ed7a8546e81d326 (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to 47fb04c3826e1f90271d405523043d6708b9072a (excl.)
  • affected from f5a4c24e689f54e66201f04d343bdd2e8a1d7923 to 0502d5077e419427d80f4d46ba95d0067f5fb916 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.15 is affected
  • unaffected from 0 to 5.15 (excl.)
  • unaffected from 5.15.216 to 5.15.* (incl.)
  • unaffected from 6.1.183 to 6.1.* (incl.)
  • unaffected from 6.6.151 to 6.6.* (incl.)
  • unaffected from 6.12.103 to 6.12.* (incl.)
  • unaffected from 6.18.44 to 6.18.* (incl.)
  • unaffected from 7.1.8 to 7.1.* (incl.)
  • unaffected from 7.2 to * (incl.)

References