Month: 2026-02 — WiFi HAL quality improvements through targeted Coverity remediation in rdk-wifi-hal. This month delivered stability and code quality hardening by fixing high and medium impact Coverity issues, reducing risk in production and setting a foundation for easier future maintenance.

Concise monthly summary for 2026-01 focused on stabilizing memory usage and hardening core wifi data paths, delivering two major system improvements across OneWifi and rdk-wifi-hal. Key outcomes: - Refactored memory allocation for large wifi data structures in OneWifi by moving webconfig_subdoc_data_t, wifi_monitor_data_t, and wifi_vap_info_t from stack to heap to prevent stack overflow and improve runtime stability. (Commits: 3e333a125b9838f9e2ec4f3d775415498c8ed840; 709ec40a28d2b12c319e0c83e92b5788ccc48510; dc0deec229b29a565d52ac44af30cc6bc5018d3d; 23ad0934efa0364ef5c19950d5c091455d12334b) - Implemented multiple stack-use hardening changes across related components to reduce risk of overflow under heavy config/monitoring workloads. - Fixed memory-safety vulnerabilities in rdk-wifi-hal by addressing double-free and use-after-free in hash_map_put, enhancing stability and security. (Commit: 6517f548d51e0db4ce640b6e256c558e924d6989) - Build and regression tests completed successfully for all changes, confirming stability and expected behavior under typical workloads. Overall impact: - Increased reliability and robustness of the Wi-Fi stack in dynamic/edge environments. - Reduced risk of crashes due to stack overflows and memory-safety issues, enabling higher uptime and smoother user experiences. - Demonstrated proficiency in C memory management, heap/stack discipline, and secure coding practices. Technology/skills demonstrated: - Low-level memory management and data-structure refactoring (heap vs stack) - Memory safety hardening (double-free, use-after-free mitigation) - Code review, sign-off patterns, and collaboration (Co-authored-by references) - End-to-end validation via builds and regression tests