CVE-2026-63969

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ipv6: fix possible infinite loop in rt6_fill_node()<br /> <br /> Sashiko reported this issue [1]. Apply the same fix as<br /> commit f8d8ce1b515a ("ipv6: fix possible infinite loop in fib6_info_uses_dev()").<br /> <br /> Writers holding tb6_lock can list_del_rcu(&amp;rt-&gt;fib6_siblings)<br /> without waiting for RCU readers; rt-&gt;fib6_siblings.next then still<br /> points into the old ring and this softirq-side walker never reaches<br /> &amp;rt-&gt;fib6_siblings, causing a CPU stall. fib6_del_route() always<br /> WRITE_ONCE()s rt-&gt;fib6_nsiblings to 0 before list_del_rcu(), so an<br /> inside-loop check is a reliable detach signal.<br /> <br /> [1] https://sashiko.dev/#/patchset/20260526020227.4857-1-jiayuan.chen%40linux.dev