Vulnerability details
CVE-2026-80722
wifi: mac80211: validate individual TWT params before driver setup
Official 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]
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < 09d60d1f72e6598241490eb6c4e97245af895c09 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < ff558072d199c1d641d1561da622e67f780514de | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < ade9e2f0f7f4d3089600ac2af8ef0b91746f923b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < 92fcd0f30dc8e51f252589b082d46851d295cc1a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < 47fb04c3826e1f90271d405523043d6708b9072a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < 0502d5077e419427d80f4d46ba95d0067f5fb916 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ≤ v < b558e07708d886acfcf4b0391ed7a8546e81d326 | CVEProject cvelistV5 (CNA) |
References and advisories
7- https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a
- https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09
- https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de
- https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b
- https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326
- https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a
- https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916
Details
- Published
- 2026-08-28
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —