Answer in brief
CVE-2026-98699 records a Unknown severity vulnerability in wifi: mac80211: fix mesh fast xmit path deletion UAF. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <0117f1aa189495e6f1ff608681678817995aee39 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <128e800a41270ab197b1cc8043637a2924865608 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <93da3ec938bfdcfb3899428f04c6d0c56fe32952 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <ee3aadc43ea69d98f666431e787137ac0badbb85 | 0117f1aa189495e6f1ff608681678817995aee39, 128e800a41270ab197b1cc8043637a2924865608, 93da3ec938bfdcfb3899428f04c6d0c56fe32952, ee3aadc43ea69d98f666431e787137ac0badbb85 |
| Linux/Linuxgeneric | 6.4 | Not reported |
| Linux/Linuxgeneric | >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <ebb7cba623d38733d33d79a8c7442f5ea04c0fb0 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <0117f1aa189495e6f1ff608681678817995aee39 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <128e800a41270ab197b1cc8043637a2924865608 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <93da3ec938bfdcfb3899428f04c6d0c56fe32952 || >=d5edb9ae8d568745f893c5c5fa3837d85311b131 <ee3aadc43ea69d98f666431e787137ac0badbb85 | ebb7cba623d38733d33d79a8c7442f5ea04c0fb0, 0117f1aa189495e6f1ff608681678817995aee39, 128e800a41270ab197b1cc8043637a2924865608, 93da3ec938bfdcfb3899428f04c6d0c56fe32952, ee3aadc43ea69d98f666431e787137ac0badbb85 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
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.
Quoted source text, attributed separately from HOL analysis.