{"id":34946,"date":"2026-10-09T16:32:31","date_gmt":"2026-10-09T08:32:31","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98383"},"modified":"2026-10-09T16:32:31","modified_gmt":"2026-10-09T08:32:31","slug":"cve-2026-98383","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98383","title":{"rendered":"CVE-2026-98383 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow bpf_skb"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL<\/p>\n<p>An LWT_SEG6LOCAL program can invalidate its cached SRH with<br \/>\nbpf_lwt_seg6_adjust_srh() and then call bpf_skb_pull_data(). The latter<br \/>\nmay reallocate skb-&gt;head, leaving the per-CPU SRH pointer dangling.<br \/>\nPost-program SRH validation then writes through that pointer.<\/p>\n<p>Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL programs so the verifier<br \/>\nrejects this unsafe helper combination. Other LWT program types continue<br \/>\nto expose the helper through lwt_out_func_proto().<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL<\/p>\n<p>An LWT_SEG6LOCAL program can invalidate its cached SRH with<br \/>\nbpf_lwt_seg6_adjus<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-34946","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/34946","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=34946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=34946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=34946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}