{"id":41224,"date":"2026-10-19T00:32:41","date_gmt":"2026-10-18T16:32:41","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98752"},"modified":"2026-10-19T00:32:41","modified_gmt":"2026-10-18T16:32:41","slug":"cve-2026-98752","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98752","title":{"rendered":"CVE-2026-98752 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ntty: port: fix tty_po"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>tty: port: fix tty_port_tty_vhangup() race<\/p>\n<p>Drivers rely on tty_port_tty_vhangup() to synchronously hang up their<br \/>\nports before tearing down resources as part of deregistration (e.g. on<br \/>\nphysical disconnect).<\/p>\n<p>If tty_port_tty_vhangup() races with another hangup it may however<br \/>\nreturn before the port has been shut down. This is in turn can lead to<br \/>\nuse-after-free and NULL-pointer dereferences in racing ioctls (including<br \/>\na synchronous hangup) and in processing of racing asynchronous hangups<br \/>\n(carrier loss).<\/p>\n<p>Add the missing serialisation to tty_port_tty_vhangup() and<br \/>\ntty_port_hangup() so that the former does not return until the port has<br \/>\nbeen shut down also when there is a racing hangup.<\/p>\n<p>Note that serial core does not use tty_port_hangup(), but it already<br \/>\nholds the port mutex when clearing port-&gt;tty and shutting down the port<br \/>\nin uart_hangup().<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>tty: port: fix tty_port_tty_vhangup() race<\/p>\n<p>Drivers rely on tty_port_tty_vhangup() to synchronously hang up their<br \/>\nports before tear<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41224","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41224","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=41224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}