CVE-2026-74406

Updated on 15 Aug 2026

Severity

Awaiting Analysis

Details

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Overview

About vulnerability

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().

Details

Affected packages:
linux @ 4.19.0 (+3 more)

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Amazon Linux 2023 Planned