{"id":12326,"date":"2026-09-04T18:54:16","date_gmt":"2026-09-04T10:54:16","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80664"},"modified":"2026-09-04T18:54:16","modified_gmt":"2026-09-04T10:54:16","slug":"cve-2026-80664","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80664","title":{"rendered":"CVE-2026-80664 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_nat: re"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>netfilter: xt_nat: reject unsupported target families<\/p>\n<p>xt_nat SNAT and DNAT target handlers assume IP-family conntrack state<br \/>\nis present and can dereference a NULL pointer when instantiated from an<br \/>\nunsupported family through nft_compat. A bridge-family compat rule can<br \/>\ntherefore trigger a NULL-dereference in nf_nat_setup_info().<\/p>\n<p>Reject non-IP families in xt_nat_checkentry() so unsupported targets<br \/>\ncannot be installed. Keep NFPROTO_INET allowed for valid inet NAT<br \/>\ncompat users and leave the runtime fast path unchanged.<\/p>\n<p>[ The crash was fixed via<br \/>\n  9dbba7e694ec (&#8220;netfilter: nft_compat: ebtables emulation must reject non-bridge targets&#8221;),<br \/>\n  so this patch is no longer critical.<br \/>\n  Nevertheless, NAT is only relevant for ipv4\/ipv6, so this extra<br \/>\n  family check is a good idea in any case. ]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>netfilter: xt_nat: reject unsupported target families<\/p>\n<p>xt_nat SNAT and DNAT target handlers assume IP-family conntrack state<br \/>\nis pre<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-12326","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/12326","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=12326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}