Monthly work summary for 2026-05 focusing on tiann/KernelSU. Delivered key reliability improvements to module actions, extended bug reporting with kernel symbol capture, and strengthened debugging/triage capabilities. The work reduced resource leaks and parsing errors, and provided richer context for issue resolution.

April 2026 — KernelSU: Delivered storage-aware file handling and parameter-management improvements, and fixed critical stability issues impacting memory allocation and unmount operations. These changes enhance data integrity, security posture, and maintainability, driving measurable business value for system reliability and developer efficiency.

March 2026 KernelSU monthly summary: Delivered Android compatibility and packaging updates, KernelSU allowlist credential management, and multiple stability/security fixes that collectively improve device compatibility, reliability, and security. Key deliverables include raising min SDK to 31 with legacy dex packaging enabled to support newer Android versions while preserving older workflows, introducing KSU credential usage to save allowlist context across module interactions, and implementing critical fixes for process privacy and startup behavior. Notable fixes include correct UID handling in forked processes, removal of ro.boot.selinux post-execution with compact resetprop, CE storage access guarded by user unlock, and MagicaService startup guard to avoid unintended execution on soft reboot. These changes reduce risk, strengthen privilege isolation, and improve boot reliability across the kernel/user-space boundary.

February 2026 — tiann/KernelSU: Memory Management and Performance Optimization: Remove UID from Array Without Dynamic Allocation. Refactored remove_uid_from_arr to eliminate dynamic memory allocation, resulting in lower memory churn and faster UID removal in the critical path. Commit 2d54667db6d50b301b56b6202c3e8eafd39758f1.

January 2026 (2026-01) KernelSU monthly summary for tiann/KernelSU. Focused on hardening kernel process handling, expanding Android compatibility, and improving code readability. Delivered changes increase runtime reliability, cross-version compatibility, and maintainable codebase, driving user experience and platform stability. Key features delivered: - Kernel Process Handling Robustness: Execve Hook Validation - Android Utility Compatibility: resetprop for Android version variants - Code Clarity: Rename newfstatat syscall symbol Major bugs fixed: - Kernel Process Handling Robustness: Execve Hook Validation (addressed fragile assumptions around zygote startup and execve handler arguments; commit ce7dffb63aedbb1957cec3d8de12020fd347097a) Overall impact and accomplishments: - Improved runtime reliability for app processes during updates and user modifications, reducing failure scenarios related to zygote/startup sequencing. - Expanded compatibility across Android versions for property overrides, resulting in more stable user experiences on diverse devices. - Enhanced maintainability and readability of kernel code via symbol renaming, easing future development and reviews. Technologies/skills demonstrated: - Kernel development: process lifecycle hooks, execve path validation, zygote handling - Android user-space tooling: resetprop integration and version-variant compatibility - Code maintenance and refactoring: symbol renaming for clarity, commit-driven development - Risk analysis and release readiness: documenting upgrade scenarios and impact

December 2025 KernelSU monthly summary focusing on security, stability, and maintainability improvements across the tiann/KernelSU repository. Highlights include kernel-level policy hardening and memory-management fixes, cross-user manager identity and non-blocking FD installation, UI rendering enhancements for content/module state refresh, and elevated CI/CD hygiene. The work delivers tangible business value through stronger security, robust multi-user operations, improved developer productivity, and streamlined release tooling.

November 2025 (tiann/KernelSU) delivered notable stability, safety, and maintainability improvements across kernel module development and KSUD tooling. Key features include a dedicated workqueue for unmount operations to decouple from kprobe context and prevent context issues, a move to task_work for sleep-capable fd installation, and an architectural shift from mutex to spinlock for tracepoint registration to improve safety and performance. Memory handling improvements were implemented by replacing kmalloc with kzalloc to ensure zero-initialized allocations, reducing null-pointer risks in task work, alongside targeted code cleanup. KSUD enhancements hardened IOCTL handling, module ID validation via regex, and expanded bugreport data, improving reliability and diagnostics. The update cadence for dependencies was refined by changing Dependabot from daily to weekly, balancing security with update noise. Major bug fixes fixed build and runtime edge cases, including ksud build iterations, legacy prctl check condition, error-path unlock handling, process termination reliability via force_sig(SIGKILL), and a shift to heap for kretprobe allocation to avoid stack limits. Additional stability improvements include pruning allowlist only after boot, avoiding UAF with async work by not saving allowlists on module exit, removing unreachable vfs_statx handling, and code quality upgrades such as rustfmt warning fixes and broader kernel code cleanup. Overall, these changes reduce risk of deadlocks and crashes, improve performance in hot paths, strengthen security instrumentation, and enhance maintainability for faster future iteration.

Month: 2025-10 — KernelSU monthly summary. Key features delivered: Stability improvement for Cgroup PID writes by removing trailing newline when writing a PID to a cgroup node. Major bugs fixed: Resolved issue #2804 by ensuring no newline is written to the cgroup node (commit 1364710021ee7fa25785526d1ef335f3a4d6ddc0). Overall impact: Higher reliability of PID management in cgroups across devices, reducing hangs and kernel-hook triggers. Technologies/skills demonstrated: Rust-based low-level IO handling, Linux cgroup interfacing, precise, minimal patching and commit discipline in tiann/KernelSU.

September 2025 (tiann/KernelSU): Three focused updates delivering stability, guidance, and architecture readiness. Key changes: 1) Isolated process unmount handling for zygote forks: refactored user ID checks, renamed is_unsupported_uid to is_unsupported_app_uid and is_appuid to is_non_appuid, and improved unmount logic to reduce crashes and ensure consistent behavior. Commit 4d3560b12bec5f238fe11f908a246f0ac97e9c27. 2) Shizuku service template compatibility disclaimer: updated the template description to indicate that Shizuku modules may not work with this template, improving user guidance. Commit 78e3ec18748acdc5427c4b981342b8296860b895. 3) Resetprop binary update: updated resetprop binary for aarch64 and x86_64. Binary contents differ, indicating a binary replacement/update with no visible code changes in diff. Commit 66d1188790b0f3dbf6d35246fb49e2f54dbce08d. All changes committed to tiann/KernelSU.

2025-08 KernelSU monthly summary for tiann/KernelSU. Focused on stability, security, and performance improvements with targeted fixes and build optimizations. Delivered measurable reliability enhancements across system tooling and process lifecycle, plus a security-aware release workflow. Business value includes fewer runtime anomalies, safer operational boundaries, and leaner production binaries.

June 2025 performance summary for tiann/KernelSU focusing on stability hardening and credential management improvements that enhance security, reliability, and operational consistency in root-privileged workflows.

Monthly work summary for 2025-05 focusing on key accomplishments, including feature delivery and bug fixes in tiann/KernelSU. The work emphasizes business value by improving ZIP performance/compatibility and ensuring reliable root-shell usage. Highlights include upgraded ZIP library dependencies with advanced compression features and a robust createRootShell fallback logic.

Month: 2025-04. Delivered targeted reliability and admin-control improvements across two repositories. In tiann/KernelSU, fixed log event file naming and tar path typos ('opuls' -> 'oplus'), preserving log integrity for device-specific bug reporting. In bmax121/APatch, enabled --shell option for su, switching argument parsing to optopt and adding a placeholder for a custom shell path to empower administrators to run a shell with a specified path. These changes enhance operational reliability and administrative flexibility.

March 2025 monthly summary for tiann/KernelSU focused on delivering robust shell access governance and improving search stability. Key outcomes include a new Shell Access Policy with Custom Shell Support, and performance/stability improvements by skipping staging temporary directories in throne_tracker searches. The work emphasizes security, reliability, and developer productivity with clear, commit-backed changes.

February 2025 focused on stabilizing KernelSU UX and cross-version reliability. Delivered targeted UI cleanup, critical bug fixes, and navigation/memory safety improvements that reduce user confusion, reclaim storage, and improve stability across Android versions. These changes strengthen maintainability and product readiness for broader device support.

January 2025 focused on hardening security, stabilizing mount namespace behavior, and upgrading core tooling across KernelSU and APatch. Implemented precise capabilities initialization, refactored mount namespace cleanup to ensure consistent -M behavior, and upgraded BusyBox binaries. Also aligned APatch mount handling with global namespace semantics. These changes improve security posture, reliability of mount operations, and cross-arch tooling support (aarch64/x86_64).