> CVE-2026-74406

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive(). udp_tunnel_sock_release() could set sk->sk_user_data to NULL while vxlan_gro_prepare_receive() is running. Let's check if rcu_dereference_sk_user_data() is NULL after skb_gro_remcsum_init().

> AFFECTED_PRODUCTS

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().

> HISTORIQUE DES MODIFICATIONS

> REFERENCES