Vulnerability in drm/nouveau package: Off-by-One Error in BIOS Boundary Checking

Kernel Updated 02 Oct 2025

Summary

18/02/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000091: drm/nouveau: fix off by one in BIOS boundary checking. Affects Kernel versions >= 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077, < d4b746e60fd8eaa8016e144223abe91158edcdad. No fix is published. How to fix ↓

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Background

The drm/nouveau package is a component of the Linux Kernel, which is responsible for providing support for NVIDIA GPUs using the Nouveau open-source driver. This package allows users to utilize their NVIDIA graphics cards on Linux systems without relying on proprietary drivers. The package interacts with the system's BIOS to configure and control the GPU's behavior. However, a vulnerability has been discovered in the package's BIOS boundary checking mechanism, which could potentially lead to security issues.

Vulnerability Detail

The vulnerability in the drm/nouveau package arises from an off-by-one error in the BIOS boundary checking code. This error allows an attacker to overwrite one byte beyond the intended boundary, potentially leading to memory corruption or other security vulnerabilities. While the impact and attack plausibility of this vulnerability have not been proven, it is crucial to address it to ensure the security and stability of systems utilizing the Nouveau driver.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No specific workaround has been provided for this vulnerability. It is advised to apply the recommended fix by updating the Linux Kernel to the latest version.

Conclusion

The vulnerability in the drm/nouveau package's BIOS boundary checking code poses a potential security risk. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v4.9.300 or later. By doing so, the off-by-one error will be resolved, ensuring the security and stability of systems utilizing the Nouveau driver. For further support and assistance in vulnerability remediation, please contact DevNack.com.

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