Google has open-sourced Vanir, a patch validation tool for Android developers, to accelerate vulnerability mitigation and ensure faster delivery of security updates. Vanir automates patch validation using static inspection to identify missing patches with high accuracy, supporting C/C++ and Java, which cover most Android vulnerabilities. The tool is designed for scalability, aiding OEMs in managing diverse devices and update complexities, and is now available under the BSD-3 license for broader adoption and customization.

‍