google/syzkaller
Feb 2025 – May 2025
2 Months active
Languages Used
CC++GoTexttext
Technical Skills
Build SystemsError HandlingFuzzingKernel DevelopmentMemory ManagementOperating System Internals
Mark Johnston
PROFILE
Mark Johnston
Mark Johnston contributed to the google/syzkaller repository by enhancing FreeBSD platform support, focusing on kernel fuzzing stability and system call accuracy. He improved fuzzing reliability by refining kernel address range handling and strengthening memory protection, using C and Go to address coverage data issues and sandbox error handling. Mark also aligned FreeBSD syscall definitions with current documentation, removing obsolete socket options and adding inotify support to expand test coverage. His work demonstrated depth in kernel development, memory management, and system programming, resulting in more robust fuzzing environments and improved CI stability for BSD systems through targeted code cleanup and error handling.
Overall Statistics
Feature vs Bugs
20%Features
Repository Contributions
5Total
Bugs
4
Commits
5
Features
1
Lines of code
67
Activity Months2
Your Network
91 people
Work History
May 2025
2 Commits • 1 Features
May 1, 2025May 2025: Focused FreeBSD platform improvements for syzkaller, with targeted syscall option alignment and enhanced inotify support to strengthen fuzzing coverage and reliability across FreeBSD deployments.
2 Commits • 1 Features
May 1, 2025May 2025: Focused FreeBSD platform improvements for syzkaller, with targeted syscall option alignment and enhanced inotify support to strengthen fuzzing coverage and reliability across FreeBSD deployments.
May 2025
February 2025
3 Commits
Feb 1, 2025February 2025: Hardening BSD integration for google/syzkaller and stabilizing fuzzing through targeted kernel-range adjustments. Delivered critical bug fixes and a stability enhancement to reduce flaky behavior, improve safety, and increase business value from more reliable fuzzing and safer sandbox environments.
February 2025
3 Commits
Feb 1, 2025February 2025: Hardening BSD integration for google/syzkaller and stabilizing fuzzing through targeted kernel-range adjustments. Delivered critical bug fixes and a stability enhancement to reduce flaky behavior, improve safety, and increase business value from more reliable fuzzing and safer sandbox environments.
Activity
Loading activity data...
Quality Metrics
Correctness96.0%
Maintainability96.0%
Architecture96.0%
Performance92.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++GoTexttext
Technical Skills
Build SystemsCode CleanupError HandlingFuzzingKernel DevelopmentMemory ManagementOperating System InternalsSystem Programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline