{"id":"CVE-2026-98699","published":"2026-10-18T16:17:23.390","lastModified":"2026-10-19T10:19:34.227","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix mesh fast xmit path deletion UAF\n\nmesh_fast_tx_cache() stores raw mesh_path pointers. Path deletion\nflushes the cache and then frees the path with kfree_rcu(), but a\nlookup that already holds the path can insert a new cache entry\nafter the flush. The cache then points at freed memory.\n\nSet MESH_PATH_DELETED before flushing, and skip inserting a cache\nentry if the path or MPP path is already deleted. Check this under\nthe cache walk lock so it is ordered with the flush. Use WRITE_ONCE()\nfor the deletion flag updates because the cache check reads flags\nwithout taking state_lock.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0117f1aa189495e6f1ff608681678817995aee39","tags":[]},{"url":"https://git.kernel.org/stable/c/128e800a41270ab197b1cc8043637a2924865608","tags":[]},{"url":"https://git.kernel.org/stable/c/93da3ec938bfdcfb3899428f04c6d0c56fe32952","tags":[]},{"url":"https://git.kernel.org/stable/c/ee3aadc43ea69d98f666431e787137ac0badbb85","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}