Worked on the google/gvisor repository to address a critical bug in the tmpfs tar restore process, focusing on filesystem reliability during container operations. Using Go and leveraging expertise in filesystem development and testing, implemented a fix that prevents underflow errors when handling long symlink targets during tar extraction and subsequent filesystem teardown. This targeted change ensures that tmpfs operations remain stable in edge cases involving tar-based workflows, reducing the risk of teardown failures. The work was delivered as a single, well-documented commit, enhancing traceability and directly improving the robustness of container filesystem handling in real-world deployment scenarios.