{"id":"CVE-2026-80722","title":"wifi: mac80211: validate individual TWT params before driver setup","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: validate individual TWT params before driver setup\n\nieee80211_process_rx_twt_action() only partially validates a received\nS1G TWT setup frame before que…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 92fcd0f30dc8e51f252589b082d46851d295cc1a","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 09d60d1f72e6598241490eb6c4e97245af895c09","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ff558072d199c1d641d1561da622e67f780514de","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ade9e2f0f7f4d3089600ac2af8ef0b91746f923b","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < b558e07708d886acfcf4b0391ed7a8546e81d326","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 47fb04c3826e1f90271d405523043d6708b9072a","Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 0502d5077e419427d80f4d46ba95d0067f5fb916","Linux 5.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:20:57.406511Z"},"published":"2026-08-28","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:26:35.418Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80722","references":[{"url":"https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"},{"url":"https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"},{"url":"https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"},{"url":"https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"},{"url":"https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"},{"url":"https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"},{"url":"https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"}],"tags":["cve.org"],"epss":0.00239,"epssPercentile":0.13891,"ingestedAt":"2026-10-16T19:46:24.302Z","slug":"CVE-2026-80722","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: validate individual TWT params before driver setup\n\nieee80211_process_rx_twt_action() only partially validates a received\nS1G TWT setup frame before queueing it.\n\nAn individual agreement can therefore reach ieee80211_s1g_rx_twt_setup()\nwith twt->length too short for the full struct ieee80211_twt_params.\n\nThe individual path passes twt to drv_add_twt_setup(). Both the tracepoint\nand the driver callback consume the complete parameters block, not merely\nreq_type. Do not pass a short individual agreement to the driver.\nBroadcast agreements remain unchanged because they are rejected locally\nafter accessing only req_type.\n\n[edit commit message to not overclaim lack of validation nor\n understate driver impact]\n\n## Affected\n\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 92fcd0f30dc8e51f252589b082d46851d295cc1a`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 09d60d1f72e6598241490eb6c4e97245af895c09`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ff558072d199c1d641d1561da622e67f780514de`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < ade9e2f0f7f4d3089600ac2af8ef0b91746f923b`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < b558e07708d886acfcf4b0391ed7a8546e81d326`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 47fb04c3826e1f90271d405523043d6708b9072a`\n- `Linux >= f5a4c24e689f54e66201f04d343bdd2e8a1d7923 < 0502d5077e419427d80f4d46ba95d0067f5fb916`\n- `Linux 5.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}