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June 23 - 25, 2025
Denver, Colorado
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Note: The schedule is subject to change.

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A Deep Dive Into eBPF Program Loader - Cong Wang, Independent
Monday June 23, 2025 4:30pm - 5:10pm MDT
Bluebird Ballroom 2E
As eBPF continues to revolutionize Linux observability and networking, the complexity of its program loading mechanism has evolved significantly.

This technical deep dive unravels the sophisticated machinery behind eBPF program loading, exploring the intricate interplay between userspace loader and Linux kernel verifier. We'll dissect the eBPF program relocation mechanisms, examine the role of BTF (BPF Type Format) in enabling strong typing and verification capabilities, and analyze the complex choreography of bpf() syscalls that bridge userspace and kernel operations. Finally, we will also discuss the security implications and program signing challenges in the loading pipeline.
Speakers
avatar for Cong Wang

Cong Wang

Linux Kernel Engineer, Self Employed
Cong Wang is a professional Linux kernel developer mainly focuses on networking and eBPF, he is also a Linux kernel maintainer for the networking traffic control subsystem. He has contributed over 1000 patches to Linux kernel.
Monday June 23, 2025 4:30pm - 5:10pm MDT
Bluebird Ballroom 2E
  Linux

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