CVE-2026-74406

9.8 Critique

Publiée le 15/08/2026 à 08:22 · Modifiée le 16/10/2026 à 22:17 · Reçue · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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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Produits concernés

Linux

Scores CVSS

Version	Score	Source	Vecteur
3.1	9.8 Critique	416baaa9-dc9f-4396-8d5f-8c081fb06d67	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Références

https://git.kernel.org/stable/c/08f40c0d23c67c3aa4224c3311e134999c721fb4
https://git.kernel.org/stable/c/30a45c0bffdd62350261e2f2689fdba426a33578
https://git.kernel.org/stable/c/4a8cde6f7281ea2c4c290f9ad9923b3631defceb
https://git.kernel.org/stable/c/9c58c729d32e7cea5772cc44929c6cd61e5a31cd
https://git.kernel.org/stable/c/ef44dac2a37f86eeae6b88ed10a6d60b35387dfd
https://git.kernel.org/stable/c/f79c80f173fda9545b220c1f094b65fc06c252d0

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories