{"id":3385,"date":"2026-09-04T04:59:40","date_gmt":"2026-09-03T20:59:40","guid":{"rendered":"https:\/\/www.54iter.cn\/?p=3385"},"modified":"2026-09-04T04:59:40","modified_gmt":"2026-09-03T20:59:40","slug":"cve-2026-80733","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80733","title":{"rendered":"CVE-2026-80733 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnet: remove WARN_ON_O"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: remove WARN_ON_ONCE() from sk_mc_loop()<\/p>\n<p>sk_mc_loop() can be called for sockets that are neither AF_INET<br \/>\nnor AF_INET6 (e.g. AF_PACKET sockets when sending packets via raw\/packet<br \/>\nsocket over virtual devices such as VRF or ipvlan).<\/p>\n<p>In such cases, sk_family is not AF_INET\/AF_INET6 and sk_mc_loop() falls<br \/>\nthrough the switch statement and triggers WARN_ON_ONCE(1).<\/p>\n<p>Non-INET sockets do not support IP_MULTICAST_LOOP or IPV6_MULTICAST_LOOP<br \/>\noptions, so loopback should default to true without generating a warning.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: remove WARN_ON_ONCE() from sk_mc_loop()<\/p>\n<p>sk_mc_loop() can be called for sockets that are neither AF_INET<br \/>\nnor AF_INET6 (e.g. AF<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-3385","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/3385","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=3385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}