CVE-2025-68738
Unknown Unknown - Not Provided
Null Pointer Dereference in Linux mt7996 WiFi Driver

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix null pointer deref in mt7996_conf_tx() If a link does not have an assigned channel yet, mt7996_vif_link returns NULL. We still need to store the updated queue settings in that case, and apply them later. Move the location of the queue params to within struct mt7996_vif_link.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68738
EUVD
EUVD-2025-205224
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux kernel *
linux linux_kernel *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a null pointer dereference in the Linux kernel's mt7996 WiFi driver. Specifically, when a link does not have an assigned channel, the function mt7996_vif_link returns NULL, but the code still attempts to store updated queue settings, leading to a null pointer dereference. The fix involves moving the location of the queue parameters within the mt7996_vif_link structure to handle this case properly.

Impact Analysis

The null pointer dereference can cause the affected system to crash or become unstable, potentially leading to denial of service conditions in the WiFi functionality of the Linux kernel.

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