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Exceeds
Hirokazu MORIKAWA

PROFILE

Hirokazu Morikawa

Worked extensively on the openwrt/packages repository, delivering upgrades and security patches for core components such as Node.js, ICU, and c-ares. Focused on build system management, dependency handling, and package maintenance, the work included Makefile tuning, patch integration, and cross-compilation support using C, C++, and Shell. Addressed critical CVEs through timely security updates and improved internationalization by upgrading ICU for Unicode and locale data enhancements. Implemented build simplification strategies, stabilized network and kernel features, and ensured compatibility across architectures. Each change was validated through end-to-end testing, emphasizing reliability, maintainability, and security for downstream OpenWrt deployments and users.

Overall Statistics

Feature vs Bugs

38%Features

Repository Contributions

15Total
Bugs
8
Commits
15
Features
5
Lines of code
1,746
Activity Months10

Work History

April 2026

1 Commits

Apr 1, 2026

OpenWrt package maintenance focused on security: Delivered a Node.js 22.22.2 patch to openwrt/packages in April 2026, applying critical updates to address multiple vulnerabilities. The work centered on upgrading Node.js, validating compatibility across the package ecosystem, and ensuring downstream devices are protected. The patch includes hardening changes such as wrapping SNICallback in try/catch, using null prototypes for headersDistinct/trailersDistinct, timing-safe HMAC comparisons, handling NGHTTP2_ERR_FLOW_CONTROL, and adding permission checks to realpath.native and lib/fs/promises. The change set was captured in a single commit (3d5f717b7a47fc49b6ae67af7e087da0cfc33a64) with comprehensive notes. Overall, this patch reduces security risk, preserves performance, and maintains compatibility through careful validation in the build/test pipelines. This contributes to a more secure OpenWrt packaging ecosystem and demonstrates a proactive security posture.

March 2026

1 Commits

Mar 1, 2026

March 2026 monthly summary for openwrt/packages: ICU library upgrade to 78.3 with bug fixes and timezone data refresh, aligning with CLDR 48.2 updates and stabilizing time handling across the package.

January 2026

1 Commits

Jan 1, 2026

January 2026 focus on stabilizing IPv6 tunneling for MAP-E and DS-Lite in DragonBluep/openwrt by reverting a disruptive change and restoring the original __ip6_tnl_rcv logic. The fix improves reliability for IPv6-tunneled deployments and prevents customer outages related to MAP-E/DS-Lite tunnels.

December 2025

1 Commits

Dec 1, 2025

December 2025: Delivered a critical security upgrade in openwrt/packages by updating the c-ares library to 1.34.6 to mitigate use-after-free vulnerabilities in read_answers(), addressing CVE-2025-31498 and CVE-2025-62408. The change was implemented with a security-focused commit (ebdb9536a9a0063f92efd63b529d7c9bd0d838c4), tested for compatibility, and released with no API changes. This reduces exploitable surface area in DNS resolution paths, strengthens the package ecosystem's security posture, and improves overall resilience for OpenWrt deployments.

November 2025

1 Commits • 1 Features

Nov 1, 2025

Monthly summary for 2025-11: Focused on delivering a major internationalization upgrade in openwrt/packages by updating ICU to 78.1 (Unicode 17 features, new locale data via CLDR 48) and introducing modern C++ string APIs. No major bugs reported this month; changes were additive and had no regressions in packaging. Overall impact: expanded multilingual support and improved string handling efficiency for end-users and downstream packages, enabling better localization for OpenWrt deployments. Technologies showcased: ICU 78.1, CLDR 48 data, Unicode 17, improved C++ iterator-based string APIs, and packaging/system integration.

March 2025

3 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for openwrt/packages focusing on delivering faster, more maintainable packaging through build-system simplification and library upgrades. Key features delivered include Node.js Build System Simplification and ICU Library Upgrade to 77.1. Major bugs fixed center on stability improvements from the ICU upgrade. Overall impact includes faster builds, broader host-platform support, and improved packaging reliability. Technologies/skills demonstrated include build-system refactoring, cross-architecture packaging, Makefile tuning, and ICU/CLDR handling.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 (openwrt/packages) delivered a focused runtime upgrade: Node.js to 22.14.0. The work included updating the Makefile to reflect the new version/hash and incorporating patches from the Node.js 22.14.0 release. No major bugs were reported or fixed in this scope. The upgrade improves security, performance, and alignment with upstream tooling, supporting downstream packages and users with a stable, supported runtime. Key practices demonstrated included versioned release management, Makefile maintenance, patch adoption, and end-to-end verification within the OpenWrt package workflow.

January 2025

1 Commits

Jan 1, 2025

Month 2025-01 Monthly Summary for openwrt/packages: Delivered a critical security patch by upgrading Node.js to 22.13.1 and applying build-system fixes to address CVEs CVE-2025-23083, CVE-2025-23085, CVE-2025-23084, and CVE-2025-22150 in undici. Changes implemented in the openwrt/packages repository with the primary commit 643afd8977be40464ec2aed66972a754aa2585ac (node: January 21, 2025 Security Releases). This reduces exposure for downstream users and strengthens platform security posture.

December 2024

1 Commits

Dec 1, 2024

December 2024 monthly summary for openwrt/packages: Focused on stabilizing the Node.js build by removing reliance on the shared abseil-cpp library and switching to a local Abseil-Cpp reference. This involved updating Makefile include paths, applying targeted patches, and validating builds to restore reliability after a recent update.

November 2024

4 Commits • 2 Features

Nov 1, 2024

OpenWrt packages – November 2024 monthly summary focused on delivering core upgrades to build tooling and packaging, with an emphasis on stability, compatibility, and maintainability. Key features delivered include ICU compatibility upgrade for the Node.js build (ICU 76.1 for Unicode 16 and CLDR 46, with linking patch), and Node.js 22.11.0 LTS upgrade (Makefile and patches adjusted for new version, including PATHs, MUSL, macOS fixes, and V8/ICU adjustments). A notable bug fix involved aligning NTPD packaging semantics with APK versioning to ensure correct real-version packaging semantics and reproducible builds.

Activity

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Quality Metrics

Correctness95.4%
Maintainability93.4%
Architecture94.0%
Performance89.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

CC++JavaScriptMakefilePythonShell

Technical Skills

Build SystemBuild System ConfigurationBuild System ManagementBuild SystemsC programmingC++ developmentC/C++ Build ConfigurationCode RemovalCross-CompilationDependency ManagementNode.jsPackage ManagementPatch ManagementSecurity PatchingSoftware Development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

openwrt/packages

Nov 2024 Apr 2026
9 Months active

Languages Used

C++MakefilePythonJavaScriptShell

Technical Skills

Build System ConfigurationBuild SystemsDependency ManagementPatch ManagementSoftware DevelopmentSystem Administration

DragonBluep/openwrt

Jan 2026 Jan 2026
1 Month active

Languages Used

C

Technical Skills

C programmingkernel developmentnetwork programming