Null Pointer Dereference in com20020pci_probe() in net: arcnet: com20020

Kernel Updated 02 Oct 2025

Summary

18/03/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000873: net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe(). Affects Kernel versions >= 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f, < e50c589678e50f8d574612e473ca60ef45190896. No fix is published. How to fix ↓

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Background

The net: arcnet: com20020 is a component of the Linux Kernel that provides support for the COM20020 ARCnet network driver. ARCnet is a local area network (LAN) protocol that was popular in the 1980s and early 1990s. The com20020pci_probe() function is responsible for probing and initializing the COM20020 ARCnet PCI network driver. This vulnerability specifically affects the com20020pci_probe() function.

Vulnerability Detail

The vulnerability in com20020pci_probe() is a null pointer dereference issue. A null pointer dereference occurs when a program attempts to access or manipulate data using a null pointer, resulting in a crash or potentially exploitable behavior. In this case, the vulnerability allows an attacker to trigger a null pointer dereference by sending specially crafted network packets to a system with a vulnerable version of the Linux Kernel. The impact of this vulnerability could range from a denial-of-service (DoS) condition to potential remote code execution.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no known workaround for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the latest stable version.

Conclusion

In conclusion, the com20020pci_probe() function in the net: arcnet: com20020 component of the Linux Kernel is vulnerable to a null pointer dereference issue. This vulnerability can be fixed by updating the Linux Kernel to version v5.4.183 or later. There is no known workaround for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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