Vulnerability in Kernel package: mtd: rawnand: fsmc: Fix timing computation

Kernel Updated 02 Oct 2025

Summary

19/12/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1002605: mtd: rawnand: fsmc: Fix timing computation. Affects Kernel versions >= d9fb0795718333e36f7e472d7d81b7b8efe347c8, < a4953e7b6f6ab5e1faf3267b5728e40eac1b6f8d. No fix is published. How to fix ↓

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Background

The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services and interfaces for hardware, software, and user applications. The mtd (Memory Technology Device) subsystem within the Kernel handles flash memory devices, including NAND flash. The rawnand driver in the mtd subsystem is responsible for managing raw NAND flash chips connected via the FSMC (Flexible Static Memory Controller) interface. This vulnerability affects the timing computation in the rawnand driver, potentially leading to security issues.

Vulnerability Detail

The vulnerability in the rawnand driver's timing computation can result in incorrect timing values being used during flash operations. This could lead to data corruption, read/write errors, or other unexpected behavior when interacting with NAND flash chips. An attacker with local access to the system or the ability to execute malicious code could potentially exploit this vulnerability to manipulate data stored on the affected flash memory devices. 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

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

Conclusion

The vulnerability in the Kernel package's rawnand driver's timing computation can potentially lead to data corruption and other issues when interacting with NAND flash chips. It is crucial to update the Kernel package to the latest version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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