CVE-2026-98706wifi: mac80211: drain PS delivery work during station teardown
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drain PS delivery work during station teardown Removing an AP or mesh station can notify the driver and wake TXQs after the station has already been removed from the driver, and can update num_sta_ps and the power-save queues after station cleanup has purged them. sta_deliver_ps_frames() tests sta->dead only before it starts delivery. A worker that passes that test can be delayed while teardown sets sta->dead and removes the station from the driver; when it resumes it still runs the full delivery. The existing cancel_work_sync() sits near the end of __cleanup_single_sta(), after the final driver state transition and after PS accounting and queue purging, so it drains the worker only once the state it has to protect has already changed. Before commit d34ba2168a3c ("mac80211: don't delay station destruction") cleanup was deferred through the same ordered workqueue as the delivery work, which kept the two ordered. Cancel the work after setting sta->dead and before moving the driver state, and move the existing cancellation to the start of __cleanup_single_sta(). The first drain closes the driver-lifetime window; driver callbacks during the remaining state transitions can still queue drv_deliver_wk through ieee80211_sta_block_awake(), so retain the second drain at the start of __cleanup_single_sta(). That drain also covers insertion failures, which reach cleanup without setting sta->dead.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 12 days later
· 12 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 01292d4c491b9b78c23cde3c5eaa9fb8c8e241f8
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < dedae75046c47d191b9ffe3771c09281a9a94fba
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 086e7aebd3a9f91435cac348828a339e1070b188
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < cbff71fe689f359ebd6a3eaded035ef75226afce
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 843d3a1e6f25027ac85f88f67b95d82c67306dee
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 772bd89304ecf057cc51ce4ce24a1a96ac9c8de3
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 097460fcdd8ab9ef6f6018b2fdc29ba0ea499298
- affected d34ba2168a3c10e7301cca06069c39865b4c3ec6 – < 67a9e80c3ca20c9044cd6ee72cd6278dd19b5023
- affected 3.14
- unaffected < 3.14
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.56 – ≤ 6.18.*
- unaffected 7.2.10 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/01292d4c491b9b78c23cde3c5eaa9fb8c8e241f8 (opens in a new tab)
- https://git.kernel.org/stable/c/dedae75046c47d191b9ffe3771c09281a9a94fba (opens in a new tab)
- https://git.kernel.org/stable/c/086e7aebd3a9f91435cac348828a339e1070b188 (opens in a new tab)
- https://git.kernel.org/stable/c/cbff71fe689f359ebd6a3eaded035ef75226afce (opens in a new tab)
- https://git.kernel.org/stable/c/843d3a1e6f25027ac85f88f67b95d82c67306dee (opens in a new tab)
- https://git.kernel.org/stable/c/772bd89304ecf057cc51ce4ce24a1a96ac9c8de3 (opens in a new tab)
- https://git.kernel.org/stable/c/097460fcdd8ab9ef6f6018b2fdc29ba0ea499298 (opens in a new tab)
- https://git.kernel.org/stable/c/67a9e80c3ca20c9044cd6ee72cd6278dd19b5023 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103960 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-98706)Record last updated .