Vulnerability in dell-smbios-wmi Package: Fix oops on rmmod dell_smbios

Kernel Updated 02 Oct 2025

Summary

31/05/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

UVI-2021-1000517: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios. Affects Kernel versions >= 1a258e670434f404a4500b65ba1afea2c2b29bba, < 75cfc833da4a2111106d4c134e93e0c7f41e35e7. No fix is published. How to fix ↓

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Background

The dell-smbios-wmi package is a component of the Linux Kernel ecosystem. It provides support for Dell System Management BIOS (SMBIOS) through the Windows Management Instrumentation (WMI) interface. This package allows users to access and manage various system information and settings on Dell computers. However, a vulnerability has been discovered in this package that can lead to an oops (kernel panic) when unloading the dell_smbios module using the rmmod command.

Vulnerability Detail

The vulnerability in the dell-smbios-wmi package arises from a flaw in the module unloading process. When attempting to remove the dell_smbios module using rmmod, an oops occurs, causing a kernel panic. This vulnerability can be exploited by an attacker with local access to the system to cause a denial-of-service (DoS) condition. The impact of this vulnerability is limited to Dell computers running Linux with the affected package version. The vulnerability was introduced in version v4.15 of the Linux Kernel and has been fixed in version v4.19.192.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no known workaround for this vulnerability. Users are advised to apply the recommended fix by updating their Linux Kernel to the latest version.

Conclusion

The vulnerability in the dell-smbios-wmi package can result in a denial-of-service (DoS) condition on Dell computers running Linux. To mitigate this vulnerability, users should update their Linux Kernel to version v4.19.192 or later. For further support on vulnerability remediation, please contact DevNack.com.

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