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-2022-1000894: xen/netfront: react properly to failing gnttab_end_foreign_access_ref(). Affects Kernel versions < c307029d811e03546d18d0e512fe295b3103b8e5. 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 to communicate between the virtual network interface and the physical network interface. This vulnerability specifically affects the xen/netfront package and its interaction with the gnttab_end_foreign_access_ref() function.

Vulnerability Detail

The vulnerability arises from a failure to properly handle errors when calling the gnttab_end_foreign_access_ref() function in the xen/netfront package. This can lead to various security issues, although the exact impact and attack vectors have not been proven. The vulnerability has been addressed in the Linux Kernel version v4.19.234 by commit c307029d811e03546d18d0e512fe295b3103b8e5.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No specific workaround has been 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 has been addressed in the Linux Kernel version v4.19.234. It is recommended to update the Linux Kernel to the latest version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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