During January 2026, Slinger focused on stabilizing ELF file processing in the facebook/folly repository by addressing a critical SIGBUS crash that occurred when handling malformed ELF files. Slinger implemented robust bounds checking in the iterateSections and iterateProgramHeaders functions, ensuring all ELF headers remained within the mapped file before iteration. This approach leveraged C++ and folly’s checked arithmetic utilities to prevent integer overflows, aligning with established patterns in the codebase. By improving error handling and memory management, Slinger’s work reduced crash risk for downstream tools like Strobelight and enhanced the overall resilience of ELF parsing in production environments.