Vulnerability in xen/netfront package: Failure to React Properly to Failing gnttab_end_foreign_access_ref()

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-2022-1000869: xen/netfront: react properly to failing gnttab_end_foreign_access_ref(). Affects Kernel versions < 0e35f3ab69bcb01fdbf5aadc78f1731778963b1c. No fix is published. How to fix ↓

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Background

The xen/netfront package is a component of the Linux Kernel, which is responsible for handling network frontends in Xen virtualization environments. It provides the necessary functionality for communication between virtual machines and the underlying network infrastructure. This vulnerability specifically affects the xen/netfront module and its interaction with the gnttab_end_foreign_access_ref() function.

Vulnerability Detail

The vulnerability arises from a failure to properly handle errors returned by the gnttab_end_foreign_access_ref() function in the xen/netfront module. When this function fails, it can lead to resource leaks and potential security issues. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to ensure the stability and security of the system.

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 v5.4.184 or later. This update includes a commit (0e35f3ab69bcb01fdbf5aadc78f1731778963b1c) that addresses the issue. Updating the kernel will ensure that the proper handling of errors in gnttab_end_foreign_access_ref() is implemented.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

In conclusion, the xen/netfront package in the Linux Kernel is vulnerable to a failure in reacting properly to the gnttab_end_foreign_access_ref() function. This vulnerability can lead to resource leaks and potential security issues. It is recommended to update the kernel to version v5.4.184 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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