CVE ID :CVE-2026-63870<\/p>\n
Published : July 19, 2026, 3:16 p.m. | 23\u00a0minutes ago<\/p>\n
Description :In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()<\/p>\n
The aoe driver (or similar) generates a non-IPv6 packet
\n(e.g., ETH_P_AOE) and queues it for transmission via dev_queue_xmit()
\non a 6LoWPAN interface (configured by the user or test case).<\/p>\n
Since the packet is not IPv6, the 6LoWPAN header_ops->create function
\n(lowpan_header_create or header_create) returns early without initializing
\nthe lowpan_addr_info structure in the skb headroom.<\/p>\n
In the transmit function (lowpan_xmit), the driver calls lowpan_header
\n(or setup_header) which unconditionally copies and uses the lowpan_addr_info
\nfrom the headroom, which contains uninitialized data.<\/p>\n
Fix this by dropping non IPv6 packets.<\/p>\n
A similar fix is needed in net\/bluetooth\/6lowpan.c bt_xmit().<\/p>\n
Severity: 0.0 | NA<\/p>\n
Visit the link for more details, such as CVSS details, affected products, timeline, and more…\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
CVE ID :CVE-2026-63870 Published : July 19, 2026, 3:16 p.m. | 23\u00a0minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit() The aoe driver (or similar) generates a non-IPv6 packet (e.g., ETH_P_AOE) and queues it for transmission via dev_queue_xmit() on a 6LoWPAN interface (configured …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-82253","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=82253"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82253\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}