Security Advisory

CVE-2026-74406

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-15 05:59:15

Last updated 2026-08-15 05:59:15

Assigner Linux

CVSS score not scored

State PUBLISHED

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().

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