{"id":28619,"date":"2026-09-25T04:31:28","date_gmt":"2026-09-24T20:31:28","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93804"},"modified":"2026-09-25T04:31:28","modified_gmt":"2026-09-24T20:31:28","slug":"cve-2026-93804","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93804","title":{"rendered":"CVE-2026-93804 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: ibss:"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: mac80211: ibss: wait for in-flight TX on disconnect<\/p>\n<p>While leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes<br \/>\nstations, turns the carrier off and immediately tells the driver to<br \/>\nleave as well. While there may be synchronize_net() in station flush<br \/>\nand in this code later, packets can still be transmitted due to<br \/>\ncross-CPU race conditions after carrier off is set.<br \/>\nTherefore, it&#8217;s possible for a race to happen where a TX to the<br \/>\ndriver occurs while or after telling it to leave the IBSS. This can<br \/>\nbe confusing to drivers, and in the case of iwlwifi leads to an<br \/>\nattempt to use invalid queues.<\/p>\n<p>Move netif_carrier_off() to occur before sta_info_flush() during<br \/>\nIBSS disconnect, and add synchronize_net() if flushing didn&#8217;t,<br \/>\nso that the synchronize_net() always happens between turning the<br \/>\ncarrier off and telling the driver, avoiding this race.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: mac80211: ibss: wait for in-flight TX on disconnect<\/p>\n<p>While leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes<br \/>\nst<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28619","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28619","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=28619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}