CVE-2026-23083

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> fou: Don&amp;#39;t allow 0 for FOU_ATTR_IPPROTO.<br /> <br /> fou_udp_recv() has the same problem mentioned in the previous<br /> patch.<br /> <br /> If FOU_ATTR_IPPROTO is set to 0, skb is not freed by<br /> fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().<br /> <br /> Let&amp;#39;s forbid 0 for FOU_ATTR_IPPROTO.