CVE-2026-98699wifi: mac80211: fix mesh fast xmit path deletion UAF
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% 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: fix mesh fast xmit path deletion UAF mesh_fast_tx_cache() stores raw mesh_path pointers. Path deletion flushes the cache and then frees the path with kfree_rcu(), but a lookup that already holds the path can insert a new cache entry after the flush. The cache then points at freed memory. Set MESH_PATH_DELETED before flushing, and skip inserting a cache entry if the path or MPP path is already deleted. Check this under the cache walk lock so it is ordered with the flush. Use WRITE_ONCE() for the deletion flag updates because the cache check reads flags without taking state_lock.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 3 days later
· 3 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)
- 0.17% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d5edb9ae8d568745f893c5c5fa3837d85311b131 – < ebb7cba623d38733d33d79a8c7442f5ea04c0fb0
- affected d5edb9ae8d568745f893c5c5fa3837d85311b131 – < 0117f1aa189495e6f1ff608681678817995aee39
- affected d5edb9ae8d568745f893c5c5fa3837d85311b131 – < 128e800a41270ab197b1cc8043637a2924865608
- affected d5edb9ae8d568745f893c5c5fa3837d85311b131 – < 93da3ec938bfdcfb3899428f04c6d0c56fe32952
- affected d5edb9ae8d568745f893c5c5fa3837d85311b131 – < ee3aadc43ea69d98f666431e787137ac0badbb85
- affected 6.4
- unaffected < 6.4
- 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
References5
- https://git.kernel.org/stable/c/ebb7cba623d38733d33d79a8c7442f5ea04c0fb0 (opens in a new tab)
- https://git.kernel.org/stable/c/0117f1aa189495e6f1ff608681678817995aee39 (opens in a new tab)
- https://git.kernel.org/stable/c/128e800a41270ab197b1cc8043637a2924865608 (opens in a new tab)
- https://git.kernel.org/stable/c/93da3ec938bfdcfb3899428f04c6d0c56fe32952 (opens in a new tab)
- https://git.kernel.org/stable/c/ee3aadc43ea69d98f666431e787137ac0badbb85 (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-2026-103953 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98699)Record last updated .