https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 23:20:40 +0000 https://vulnerability.circl.lu/vuln/cve-2026-68121 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>pppoe: reload header pointer after dev_hard_header()</p> <p>pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it.</p> <p>This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team&#39;s delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head.</p> <p>Reload the PPPoE header through the skb&#39;s network-header offset after device header creation. pskb_expand_head() updates that offset when it relocates the head.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>pppoe: reload header pointer after dev_hard_header()</p> <p>pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it.</p> <p>This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team&#39;s delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head.</p> <p>Reload the PPPoE header through the skb&#39;s network-header offset after device header creation. pskb_expand_head() updates that offset when it relocates the head.</p> https://vulnerability.circl.lu/vuln/cve-2026-68121