{"id":11971,"date":"2026-09-04T18:53:59","date_gmt":"2026-09-04T10:53:59","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80572"},"modified":"2026-09-04T18:53:59","modified_gmt":"2026-09-04T10:53:59","slug":"cve-2026-80572","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80572","title":{"rendered":"CVE-2026-80572 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nInput: byd &#8211; synchron"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Input: byd &#8211; synchronize timer deletion before freeing private data<\/p>\n<p>byd_disconnect() uses timer_delete() before freeing the driver&#8217;s private<br \/>\ndata.  This does not wait for a running byd_clear_touch() callback, which<br \/>\ndereferences the private data and its psmouse pointer.  A callback racing<br \/>\nwith disconnect can therefore access the private data after it has been<br \/>\nfreed.  The timer can also still be re-armed by byd_process_byte() while<br \/>\nthe disconnect is in progress.<\/p>\n<p>Use timer_shutdown_sync() before freeing the private data: it waits for<br \/>\na running callback and turns any later re-arm attempt into a no-op.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Input: byd &#8211; synchronize timer deletion before freeing private data<\/p>\n<p>byd_disconnect() uses timer_delete() before freeing the driver<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11971","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11971","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=11971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}