EXCEEDS logo
Exceeds
Yi Zhao

PROFILE

Yi Zhao

During a focused month of development, work centered on security remediation within the zephyrproject-rtos/poky repository. Addressing CVE-2025-47268, a critical patch was delivered to iputils ping by validating the tv_sec and tv_usec fields, effectively preventing signed 64-bit integer overflow in round-trip time calculations. This approach mitigated potential denial-of-service risks and ensured the integrity of RTT measurement data. The solution involved patch management, security vulnerability remediation, and system programming using C, with thorough code review and basic validation. No new features were introduced, but the targeted fix improved reliability and aligned with ongoing security patching practices in the project.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

1Total
Bugs
1
Commits
1
Features
0
Lines of code
147
Activity Months1

Your Network

139 people

Work History

May 2025

1 Commits

May 1, 2025

Month: 2025-05. Focused on security remediation in the Poky repository (zephyrproject-rtos/poky). Delivered a critical patch to iputils ping mitigating CVE-2025-47268 by validating tv_sec and tv_usec to prevent signed 64-bit overflow, preventing potential DoS and ensuring accurate RTT measurements. The change was implemented in commits 57560c118daba7ce29eb541cf2f20da0c97ea55b. No new features were introduced this month; however, the security hardening improves reliability and monitoring data. Impact includes reduced DoS risk, improved RTT data integrity, and alignment with security patching cadence. Technologies used: C, IP networking, security vulnerability remediation, patch management, code review and testing in Poky.

Activity

Loading activity data...

Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C

Technical Skills

Patch ManagementSecuritySystem Programming

Repositories Contributed To

1 repo

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

zephyrproject-rtos/poky

May 2025 May 2025
1 Month active

Languages Used

C

Technical Skills

Patch ManagementSecuritySystem Programming