Vulnerability in Kernel: Avoid NULL ptr deref in vchiq_dump_platform_instances

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1001707: staging: vchiq_arm: Avoid NULL ptr deref in vchiq_dump_platform_instances. Affects Kernel versions < 176df12b38c70b0a45e6392a0ee5bc83489dfc29. No fix is published. How to fix ↓

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Background

The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. The vchiq_arm module in the staging area of the Kernel is responsible for managing communication with VideoCore hardware on Raspberry Pi devices. This module is susceptible to a NULL pointer dereference vulnerability in the vchiq_dump_platform_instances function.

Vulnerability Detail

The vulnerability arises from a lack of proper validation of a pointer before dereferencing it in the vchiq_dump_platform_instances function of the vchiq_arm module. An attacker could exploit this vulnerability by providing a crafted input that triggers the NULL pointer dereference, leading to a system crash or potential code execution with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven yet.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in the vchiq_arm module of the Kernel could allow an attacker to trigger a NULL pointer dereference, potentially leading to a system crash or code execution with elevated privileges. It is crucial to update the Kernel to the latest version that includes the fix for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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