https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 08:08:22 +0000 https://vulnerability.circl.lu/vuln/cve-2026-63870 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()</p> <p>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 by the user or test case).</p> <p>Since the packet is not IPv6, the 6LoWPAN header_ops-&gt;create function (lowpan_header_create or header_create) returns early without initializing the lowpan_addr_info structure in the skb headroom.</p> <p>In the transmit function (lowpan_xmit), the driver calls lowpan_header (or setup_header) which unconditionally copies and uses the lowpan_addr_info from the headroom, which contains uninitialized data.</p> <p>Fix this by dropping non IPv6 packets.</p> <p>A similar fix is needed in net/bluetooth/6lowpan.c bt_xmit().</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()</p> <p>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 by the user or test case).</p> <p>Since the packet is not IPv6, the 6LoWPAN header_ops-&gt;create function (lowpan_header_create or header_create) returns early without initializing the lowpan_addr_info structure in the skb headroom.</p> <p>In the transmit function (lowpan_xmit), the driver calls lowpan_header (or setup_header) which unconditionally copies and uses the lowpan_addr_info from the headroom, which contains uninitialized data.</p> <p>Fix this by dropping non IPv6 packets.</p> <p>A similar fix is needed in net/bluetooth/6lowpan.c bt_xmit().</p> https://vulnerability.circl.lu/vuln/cve-2026-63870