{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98699","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.365Z","datePublished":"2026-10-18T15:46:29.245Z","dateUpdated":"2026-10-21T12:55:49.005Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-21T12:55:49.005Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mesh_pathtbl.c"],"versions":[{"version":"d5edb9ae8d568745f893c5c5fa3837d85311b131","lessThan":"ebb7cba623d38733d33d79a8c7442f5ea04c0fb0","status":"affected","versionType":"git"},{"version":"d5edb9ae8d568745f893c5c5fa3837d85311b131","lessThan":"0117f1aa189495e6f1ff608681678817995aee39","status":"affected","versionType":"git"},{"version":"d5edb9ae8d568745f893c5c5fa3837d85311b131","lessThan":"128e800a41270ab197b1cc8043637a2924865608","status":"affected","versionType":"git"},{"version":"d5edb9ae8d568745f893c5c5fa3837d85311b131","lessThan":"93da3ec938bfdcfb3899428f04c6d0c56fe32952","status":"affected","versionType":"git"},{"version":"d5edb9ae8d568745f893c5c5fa3837d85311b131","lessThan":"ee3aadc43ea69d98f666431e787137ac0badbb85","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mesh_pathtbl.c"],"versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ebb7cba623d38733d33d79a8c7442f5ea04c0fb0"},{"url":"https://git.kernel.org/stable/c/0117f1aa189495e6f1ff608681678817995aee39"},{"url":"https://git.kernel.org/stable/c/128e800a41270ab197b1cc8043637a2924865608"},{"url":"https://git.kernel.org/stable/c/93da3ec938bfdcfb3899428f04c6d0c56fe32952"},{"url":"https://git.kernel.org/stable/c/ee3aadc43ea69d98f666431e787137ac0badbb85"}],"title":"wifi: mac80211: fix mesh fast xmit path deletion UAF","x_generator":{"engine":"bippy-1.2.0"}}}}