NFC Vulnerability in Linux Kernel

Kernel Updated 02 Oct 2025

Summary

29/11/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1002236: NFC: reorder the logic in nfc_{un,}register_device. Affects Kernel versions >= be055b2f89b5842f41363b5655a33dffb51a8294, < 47244ac0b65bd74cc70007d8e1bac68bd2baad19. No fix is published. How to fix ↓

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Background

The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality. It is widely used in various devices, including servers, desktops, and embedded systems. The NFC (Near Field Communication) subsystem in the Linux Kernel enables communication between devices in close proximity, facilitating contactless data exchange. This vulnerability, identified as GSD-2021-1002236, affects the NFC subsystem in the Linux Kernel.

Vulnerability Detail

The vulnerability in the NFC subsystem arises from a logic reordering issue in the nfc_{un,}register_device functions. The specific logic reordering is not detailed in the provided information. However, this vulnerability could potentially lead to security vulnerabilities, although the exact impact and attack plausibility have not been proven. The vulnerability was introduced in version v3.10 of the Linux Kernel by commit be055b2f89b5842f41363b5655a33dffb51a8294 and is fixed in version v4.14.256 by commit 47244ac0b65bd74cc70007d8e1bac68bd2baad19.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.256 or later. This can be done by obtaining the latest version from the official Linux Kernel repository and following the installation instructions provided by the Linux distribution or system administrator.

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Workaround

No workaround is mentioned in the provided information.

Conclusion

The NFC vulnerability in the Linux Kernel, identified as GSD-2021-1002236, can potentially lead to security vulnerabilities. It is recommended to update the Linux Kernel to version v4.14.256 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.

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