zephyrproject-rtos/zephyr
Feb 2026 – Feb 2026
1 Month active
Languages Used
C
Technical Skills
driver developmentembedded systemsnetwork programmingsecurity best practices
Pavel Kohout
PROFILE
Pavel Kohout
Worked on the Zephyr networking stack, focusing on security and reliability improvements through targeted bug fixes in C. Addressed a TLS options handling issue in the eswifi driver, ensuring unsupported TLS features now return explicit errors, which prevents false success responses and reduces man-in-the-middle attack risks. Improved the e1000 Ethernet driver by aligning buffer sizes to NET_ETH_MAX_FRAME_SIZE and adding defensive bounds checks, eliminating out-of-bounds writes for large frames. These changes in the zephyrproject-rtos/zephyr repository enhanced error signaling and memory safety across embedded systems, demonstrating strong skills in driver development, network programming, and security best practices.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
14
Activity Months1
Your Network
728 peopleWork History
February 2026
2 Commits
Feb 1, 2026February 2026: Two critical driver fixes in the Zephyr networking stack strengthened security and reliability. TLS options handling bug fix in the eswifi driver now returns explicit -ENOTSUP for unsupported TLS options, preventing false success responses in hostname and peer verification and reducing MITM risk. Buffer sizing bug fix for the e1000 Ethernet driver aligns TX/RX buffers to NET_ETH_MAX_FRAME_SIZE with a defensive TX bounds check, eliminating out-of-bounds writes for large L2 frames and improving stability. Impact: enhanced security posture and network reliability, with clearer error signaling and safer memory handling across the stack.
2 Commits
Feb 1, 2026February 2026: Two critical driver fixes in the Zephyr networking stack strengthened security and reliability. TLS options handling bug fix in the eswifi driver now returns explicit -ENOTSUP for unsupported TLS options, preventing false success responses in hostname and peer verification and reducing MITM risk. Buffer sizing bug fix for the e1000 Ethernet driver aligns TX/RX buffers to NET_ETH_MAX_FRAME_SIZE with a defensive TX bounds check, eliminating out-of-bounds writes for large L2 frames and improving stability. Impact: enhanced security posture and network reliability, with clearer error signaling and safer memory handling across the stack.
February 2026
Activity
Loading activity data...
Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
driver developmentembedded systemsnetwork programmingsecurity best practices
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline