https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 06:37:21 +0000 https://vulnerability.circl.lu/vuln/cve-2026-53221 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()</p> <p>In vti6_tnl_lookup(), when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels:</p> <p>- Tunnels matching the packet&#39;s local address, with any remote address wildcard remote).</p> <p>- Tunnels matching the packet&#39;s remote address, with any local address (wildcard local).</p> <p>However, vti6 stores all these different types of tunnels in the same hash table (ip6n-&gt;tnls_r_l) prone to hash collisions.</p> <p>The bug is that the fallback search loops in vti6_tnl_lookup() were missing checks to ensure that the candidate tunnel actually has a wildcard address.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()</p> <p>In vti6_tnl_lookup(), when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels:</p> <p>- Tunnels matching the packet&#39;s local address, with any remote address wildcard remote).</p> <p>- Tunnels matching the packet&#39;s remote address, with any local address (wildcard local).</p> <p>However, vti6 stores all these different types of tunnels in the same hash table (ip6n-&gt;tnls_r_l) prone to hash collisions.</p> <p>The bug is that the fallback search loops in vti6_tnl_lookup() were missing checks to ensure that the candidate tunnel actually has a wildcard address.</p> https://vulnerability.circl.lu/vuln/cve-2026-53221