{"id":41181,"date":"2026-10-19T00:32:30","date_gmt":"2026-10-18T16:32:30","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98709"},"modified":"2026-10-19T00:32:30","modified_gmt":"2026-10-18T16:32:30","slug":"cve-2026-98709","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98709","title":{"rendered":"CVE-2026-98709 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: count"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: mac80211: count only matching reservations in reserved switch<\/p>\n<p>ieee80211_vif_use_reserved_switch() validates a replacement by counting<br \/>\nassigned links on ctx-&gt;replace_ctx and treating reservations too<br \/>\nbroadly. A link can still be assigned to the old channel context while<br \/>\nholding a reservation that belongs to a different replacement<br \/>\noperation.<\/p>\n<p>That can make the current replacement appear complete too early. If<br \/>\nanother link finalizes first, the function can free the<br \/>\nWILL_BE_REPLACED chanctx while the unmatched link and driver still use<br \/>\nit, leading to a use-after-free in later beacon generation.<\/p>\n<p>Require an in-place reservation to point at the current replacement<br \/>\ncontext, and require the reserved and assigned contexts to be the<br \/>\nmatching replacement pair, before counting or moving the link.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: mac80211: count only matching reservations in reserved switch<\/p>\n<p>ieee80211_vif_use_reserved_switch() validates a replacement by<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41181","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=41181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}