{"id":21323,"date":"2026-09-12T04:31:02","date_gmt":"2026-09-11T20:31:02","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80990"},"modified":"2026-09-12T04:31:02","modified_gmt":"2026-09-11T20:31:02","slug":"cve-2026-80990","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80990","title":{"rendered":"CVE-2026-80990 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnet: thunderbolt: Rel"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: thunderbolt: Release the Rx HopID that was handed out on mismatch<\/p>\n<p>tb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range()<br \/>\nas the lower bound, so a taken id is not an error there: the allocator<br \/>\nreturns the next free one above it. tbnet_connected_work() asks for the<br \/>\npeer&#8217;s transmit path, treats any other id as a failure and returns<br \/>\nwithout releasing what it got, so that allocation stays live for the rest<br \/>\nof the XDomain connection with nothing left holding a reference to it.<\/p>\n<p>Release the id when it is not the one we asked for, the same way the<br \/>\nerror unwind at the end of the function releases the expected one.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: thunderbolt: Release the Rx HopID that was handed out on mismatch<\/p>\n<p>tb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21323","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21323","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=21323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}