{"id":15475,"date":"2026-09-04T19:04:17","date_gmt":"2026-09-04T11:04:17","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46266"},"modified":"2026-09-04T19:04:17","modified_gmt":"2026-09-04T11:04:17","slug":"cve-2026-46266","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-46266","title":{"rendered":"CVE-2026-46266 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ninet: RAW sockets usi"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP<\/p>\n<p>Yizhou Zhao reported that simply having one RAW socket on protocol<br \/>\nIPPROTO_RAW (255) was dangerous.<\/p>\n<p>  socket(AF_INET, SOCK_RAW, 255);<\/p>\n<p>A malicious incoming ICMP packet can set the protocol field to 255<br \/>\nand match this socket, leading to FNHE cache changes.<\/p>\n<p>inner = IP(src=&#8221;192.168.2.1&#8243;, dst=&#8221;8.8.8.8&#8243;, proto=255)\/Raw(&#8220;TEST&#8221;)<br \/>\npkt = IP(src=&#8221;192.168.1.1&#8243;, dst=&#8221;192.168.2.1&#8243;)\/ICMP(type=3, code=4, nexthopmtu=576)\/inner<\/p>\n<p>&#8220;man 7 raw&#8221; states:<\/p>\n<p>  A protocol of IPPROTO_RAW implies enabled IP_HDRINCL and is able<br \/>\n  to send any IP protocol that is specified in the passed header.<br \/>\n  Receiving of all IP protocols via IPPROTO_RAW is not possible<br \/>\n  using raw sockets.<\/p>\n<p>Make sure we drop these malicious packets.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP<\/p>\n<p>Yizhou Zhao reported that simply having one RAW socket on protocol<br \/>\nIPP<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-15475","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/15475","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=15475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}