{"id":14932,"date":"2026-09-04T19:02:18","date_gmt":"2026-09-04T11:02:18","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63870"},"modified":"2026-09-04T19:02:18","modified_gmt":"2026-09-04T11:02:18","slug":"cve-2026-63870","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63870","title":{"rendered":"CVE-2026-63870 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: 6lowpan:"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()<\/p>\n<p>The aoe driver (or similar) generates a non-IPv6 packet<br \/>\n(e.g., ETH_P_AOE) and queues it for transmission via dev_queue_xmit()<br \/>\non a 6LoWPAN interface (configured by the user or test case).<\/p>\n<p>Since the packet is not IPv6, the 6LoWPAN header_ops-&gt;create function<br \/>\n(lowpan_header_create or header_create) returns early without initializing<br \/>\nthe lowpan_addr_info structure in the skb headroom.<\/p>\n<p>In the transmit function (lowpan_xmit), the driver calls lowpan_header<br \/>\n(or setup_header) which unconditionally copies and uses the lowpan_addr_info<br \/>\nfrom the headroom, which contains uninitialized data.<\/p>\n<p>Fix this by dropping non IPv6 packets.<\/p>\n<p>A similar fix is needed in net\/bluetooth\/6lowpan.c bt_xmit().<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()<\/p>\n<p>The aoe driver (or similar) generates a non-IPv6 packet<br \/>\n(e.g., ETH_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14932","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14932","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=14932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}