Robustness Assessment of the Open vSwitch Kernel Module

Open vSwitch is a software implementation of a multilayer switch designed for virtualized environments. Its architecture includes components in both user and kernel space. Although Open vSwitch is considered to be a mature project and has been widely adopted, its robustness has never been publicly a...

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Vydáno v:Proceedings - International Symposium on Software Reliability Engineering s. 215 - 226
Hlavní autoři: Flauzino, Jose, Vieira, Marco, Duarte, Elias P.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 21.10.2025
Témata:
dependability
Kernel
Linux
networking
Prevention and mitigation
Robustness
robustness testing
Sockets
Software reliability
Software systems
Switches
Telecommunication traffic
Testing
ISSN:2332-6549
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Popis
Shrnutí:Open vSwitch is a software implementation of a multilayer switch designed for virtualized environments. Its architecture includes components in both user and kernel space. Although Open vSwitch is considered to be a mature project and has been widely adopted, its robustness has never been publicly assessed. While previous works focused on performance, in this work, we investigate the robustness of a fundamental component of Open vSwitch, the kernel module. The approach is based on injecting faults into the control plane interface of the Open vSwitch kernel module - which is based on Netlink sockets. We systematically tested all Generic Netlink families implemented by Open vSwitch and their respective commands and attributes across four different Linux kernel versions. Results reveal a plethora of failures and clear indications of inconsistencies in the handling of faulty inputs.
ISSN:2332-6549
DOI:10.1109/ISSRE66568.2025.00032