{"id":14998,"date":"2026-09-04T19:02:21","date_gmt":"2026-09-04T11:02:21","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63994"},"modified":"2026-09-04T19:02:21","modified_gmt":"2026-09-04T11:02:21","slug":"cve-2026-63994","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63994","title":{"rendered":"CVE-2026-63994 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ntunnels: load network"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]()<\/p>\n<p>Sashiko found that iptunnel_pmtud_build_icmp() and<br \/>\niptunnel_pmtud_build_icmpv6() were caching ip_hdr() and ipv6_hdr()<br \/>\nbefore an skb_cow() call which can reallocate skb-&gt;head.<\/p>\n<p>Fix this possible UAF by initializing the local variables<br \/>\nafter the skb_cow() call.<\/p>\n<p>Remove skb_reset_network_header() calls which were not needed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]()<\/p>\n<p>Sashiko found that iptunnel_pmtud_build_icmp() an<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14998","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14998","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=14998"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14998"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}