CTSRD-CHERI/cheribsd
Feb 2025 – Feb 2025
1 Month active
Languages Used
CMakefile
Technical Skills
Build System ConfigurationCapability Hardware Enhancement Architecture (CH serii)Capability SecurityEmbedded SystemsOperating SystemsRuntime Linker
Dapeng Gao
PROFILE
Dapeng Gao
During February 2025, Dapeng Gao enhanced the security and reliability of the CTSRD-CHERI/cheribsd repository by implementing targeted build system and runtime linker improvements. He strengthened CHERI capability security by removing CHERI_PERM_SYSCALL from non-libsys libraries and clearing SW_VMEM permissions in the runtime linker, reducing the system’s attack surface and improving compartmentalization. Dapeng also enabled CHERI_CODEPTR_RELOCS by default in world and kernel builds, ensuring consistent application of code pointer relocations and improving build determinism. His work leveraged C and Makefile expertise, demonstrating depth in system programming, capability security, and embedded operating systems within a complex codebase.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
158
Activity Months1
Your Network
32 peopleShared Repositories
32
Adrian ChaddMember
Alex RichardsonMember
Alfredo MazzinghiMember
Andrew TurnerMember
Baptiste DaroussinMember
Brian CampbellMember
Brooks DavisMember
Brooks DavisMember
Bjoern A. ZeebMember
Work History
February 2025
3 Commits • 2 Features
Feb 1, 2025February 2025: Delivered security hardening and build reliability enhancements for CTSRD-CHERI/cheribsd. Implemented CHERI capability security hardening by removing CHERI_PERM_SYSCALL for non-libsys libraries and clearing SW_VMEM permission in the runtime linker, reducing attack surface. Enabled CHERI_CODEPTR_RELOCS by default in world and kernel builds, ensuring code pointer relocations are consistently applied and improving build determinism. These changes strengthen security posture, improve compartmentalization, and contribute to safer, more predictable deployments. Key commits include b5e7a0847ffe479de8bcdc112a5ffe926805f1c5, 0f070b80c36c3134c7bfba80a6d6357ad3378b13, and d95da1280450bd14da43d5374a614a2b013cea78.
3 Commits • 2 Features
Feb 1, 2025February 2025: Delivered security hardening and build reliability enhancements for CTSRD-CHERI/cheribsd. Implemented CHERI capability security hardening by removing CHERI_PERM_SYSCALL for non-libsys libraries and clearing SW_VMEM permission in the runtime linker, reducing attack surface. Enabled CHERI_CODEPTR_RELOCS by default in world and kernel builds, ensuring code pointer relocations are consistently applied and improving build determinism. These changes strengthen security posture, improve compartmentalization, and contribute to safer, more predictable deployments. Key commits include b5e7a0847ffe479de8bcdc112a5ffe926805f1c5, 0f070b80c36c3134c7bfba80a6d6357ad3378b13, and d95da1280450bd14da43d5374a614a2b013cea78.
February 2025
Activity
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Quality Metrics
Correctness96.6%
Maintainability86.6%
Architecture90.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CMakefile
Technical Skills
Build System ConfigurationCapability Hardware Enhancement Architecture (CH serii)Capability SecurityEmbedded SystemsOperating SystemsRuntime LinkerSecuritySystem ConfigurationSystem Programming
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