Null Dereference in net: ieee802154

Kernel Updated 02 Oct 2025

Summary

30/06/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001046: net: ieee802154: fix null deref in parse dev addr. Affects Kernel versions < fdd51e34f45311ab6e48d2147cbc2904731b9993. No fix is published. How to fix ↓

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Background

The net: ieee802154 package is a component of the Linux Kernel, which is responsible for handling IEEE 802.15.4 wireless communication. This package provides support for low-power, low-data-rate wireless networks commonly used in IoT devices. The vulnerability in this package involves a null dereference issue in the parse dev addr function.

Vulnerability Detail

The vulnerability occurs when the parse dev addr function in the net: ieee802154 package encounters a null pointer. This can lead to a null dereference, causing the system to crash or potentially allowing an attacker to execute arbitrary code. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been fixed in Linux Kernel version v5.12.12 by commit fdd51e34f45311ab6e48d2147cbc2904731b9993.

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 v5.12.12 or later. This can be done by obtaining the updated kernel source code from the official Linux Kernel repository and compiling it for the target system. Alternatively, users can wait for their Linux distribution to provide an updated package that includes the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The net: ieee802154 package in the Linux Kernel is vulnerable to a null dereference issue. It is recommended to update the kernel to version v5.12.12 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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