CVE-2026-31736

5.5 Moyenne

Publiée le 01/05/2026 à 17:16 · Modifiée le 17/06/2026 à 12:34 · Analysée par le NVD · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled If the gmac0 is disabled, the precheck for a valid ingress device will cause a NULL pointer deref and crash the system. This happens because eth->netdev[0] will be NULL but the code will directly try to access netdev_ops. Instead of just checking for the first net_device, it must be checked if any of the mtk_eth net_devices is matching the netdev_ops of the ingress device.

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Produits concernés

Linux
Linux linux kernel

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.5 Moyenne	nvd@nist.gov (NVD)	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-476

Références

https://git.kernel.org/stable/c/0b832aad33e6f160fda310f0306a6483d85e9d6e Patch
https://git.kernel.org/stable/c/5dff799c677152dde963c3917bacd9127b03e145 Patch
https://git.kernel.org/stable/c/7b2380f0a0e374010c1a4a13203511b9dee5b166 Patch
https://git.kernel.org/stable/c/976ff48c2ac6e6b25b01428c9d7997bcd0fb2949 Patch

Ailleurs

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