{"id":14997,"date":"2026-09-04T19:02:21","date_gmt":"2026-09-04T11:02:21","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63993"},"modified":"2026-09-04T19:02:21","modified_gmt":"2026-09-04T11:02:21","slug":"cve-2026-63993","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63993","title":{"rendered":"CVE-2026-63993 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: do not reuse c"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()<\/p>\n<p>skb_tunnel_check_pmtu() can change skb-&gt;head.<\/p>\n<p>Reusing old_iph afer skb_tunnel_check_pmtu() can cause an UAF.<\/p>\n<p>Use instead ip_hdr(skb) as done in drivers\/net\/bareudp.c<br \/>\nand drivers\/net\/geneve.c.<\/p>\n<p>Found by Sashiko.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()<\/p>\n<p>skb_tunnel_check_pmtu() can change skb-&gt;head.<\/p>\n<p>Reusing old<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14997","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14997","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=14997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}