BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-10-30

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Check phy before init msta_link in mt7996_mac_sta_add_links() In order to avoid a possible NULL pointer dereference in mt7996_mac_sta_init_link routine, move the phy pointer check before running mt7996_mac_sta_init_link() in mt7996_mac_sta_add_links routine.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-28

Last Modified

2025-10-30

Generated

2026-07-06

AI Q&A

2025-10-28

EPSS Evaluated

2026-07-05

NVD

CVE-2025-40066

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a potential NULL pointer dereference in the Linux kernel's wifi driver for the mt7996 chipset. Specifically, the issue occurs in the mt7996_mac_sta_add_links() routine where the phy pointer was not checked before being used in mt7996_mac_sta_init_link(), which could lead to a NULL pointer dereference and cause a system crash or instability.

Impact Analysis

If exploited, this vulnerability could cause a NULL pointer dereference leading to a kernel crash or system instability, potentially resulting in denial of service on affected systems using the mt7996 wifi driver.

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