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CVE-2026-80722: Linux

Severity

8.8 (HIGH)

Vendor

LINUX

Affected versions

f5a4c24e689f54e66201f04d343bdd2e8a1d7923 through before 92fcd0f30dc8e51f252589b082d46851d295cc1a; f5a4c24e689f54e66201f0

Patch status

Patched

Published

2026-08-28T08:16:58.000

Modified

2026-08-29T07:16:54.203

Why it matters

High-severity vulnerability requiring prioritized review.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Compare installed versions against the affected version range in the advisory.

Technical 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]

View the official NVD record for CVE-2026-80722

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.