CVE-2026-74708

7.8 Élevée

Publiée le 22/08/2026 à 18:16 · 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: xsk: validate launch-time metadata size Launch-time metadata extends beyond the first 16 bytes of struct xsk_tx_metadata. Reject the request when the registered metadata area does not contain the complete field. Snapshot the validated flags for the generic transmit path and use that snapshot for request and completion processing, avoiding inconsistent decisions if user space changes the flags concurrently. Note that only xsk_skb_metadata is properly using the flags, __xsk_buff_get_metadata ignores them. Next commits address that.

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Produits concernés

Linux

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.8 Élevée	416baaa9-dc9f-4396-8d5f-8c081fb06d67	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

Références

https://git.kernel.org/stable/c/439ce2dddf3d22129b9113a7881637256a35e936
https://git.kernel.org/stable/c/af511afa1d2977f384044df78d6fbf9fba653f7a
https://git.kernel.org/stable/c/bc63d47611c07b0d5d655fe1a590861931527920

Ailleurs

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