Syzkaller has been fuzzing Linux patchsets since August! It already caught more than 100 bugs before they were merged. At #LinuxPlumbers, Aleksandr Nogikh shared some stats and explained why your patchset may not be covered.

Website: https://ci.syzbot.org
Slides: https://lpc.events/event/19/contributions/2195/attachments/1876/4021/%5BLPC'25%5D%20syzbot%20ci.pdf
Recording: http://www.youtube.com/watch?v=69PjOqjltrs

After accelerating pod networking with netkit devices, @cilium will tackle the challenge of KubeVirt pods. At #LinuxPlumbers, Daniel Borkmann et al. explained what it will look like and the required changes.

Recording: http://www.youtube.com/watch?v=_Qy4TIaaIo4
Slides: https://lpc.events/event/19/contributions/2275/attachments/1946/4156/zero_copy.pdf

Peilin Ye gave an easy-to-follow introduction to the new BPF_ATOMIC instructions for Load-Acquire and Store-Release in eBPF. Only at #LinuxPlumbers! 😉

Recording: http://www.youtube.com/watch?v=iF7JXK9qxbc
Slides: https://lpc.events/event/19/contributions/2163/attachments/1806/3886/Introduction%20to%20eBPF%20Load-Acquire%20and%20Store-Release%20Instructions.pdf

Justin Ngai presented a BPF regex engine to be able to match file paths and command lines in the kernel. He explained how it works, its limitations, and some of the challenges involved. #LinuxPlumbers

Recording: https://youtu.be/n0xMU3XkXYM
Slides: https://lpc.events/event/19/contributions/2176/attachments/1815/3947/LPC%202025%20-%20Justin%20Ngai-NEW.pdf

Related to the previous #LinuxPlumbers talk, Raman Shukhau implemented and presented a small DNS server in eBPF!

Recording: http://www.youtube.com/watch?v=di2RcXVqPyM
Slides: https://lpc.events/event/19/contributions/2161/attachments/1832/3924/Simple%20DNS%20Server%20with%20BPF.pdf

@cilium can enforce network policies based on FQDNs using a userspace proxy. At #LinuxPlumbers, @hemanthmalla proposed to move this to the kernel by implementing DNS parsing in #eBPF!

Recording: http://www.youtube.com/watch?v=ecQoxg2yHSE
Demo: https://youtu.be/0qmQ1bTBLHo
Slides: https://lpc.events/event/19/contributions/2157/attachments/1831/3921/eBPF%20FQDN%20-%20LPC%20Japan%2025.pdf

Work on the BPF Verifier Visualizer (bpfvv) is continuing! Ihor Solodrai and Jordan Rome presented the many new features at #LinuxPlumbers.

Recording: http://www.youtube.com/watch?v=-_P1DcdUWyc
Slides: https://lpc.events/event/19/contributions/2180/attachments/1782/3857/LPC_2025_bpfvv.pdf

After a great recap of how uprobes work, Jiri Olsa presented recent optimizations and discussed how uprobes could overwrite userspace functions. As usual with Jiri, the slides are minimalist but effective :) #LinuxPlumbers

Recording: http://www.youtube.com/watch?v=sydTbENrORE
Slides: https://lpc.events/event/19/contributions/2166/attachments/1887/4037/uprobes.pdf

At #LinuxPlumbers, @breakawaybilly presented what the eBPF Foundation is doing, where its funds are going, and asked the attendees what should be next.

Recording: https://www.youtube.com/live/ZLRngpdV6Qg?t=29359s
Slides: https://lpc.events/event/19/contributions/2181/attachments/1893/4115/LPC%20-%20From%20Projects%20to%20Ecosystems_%20Lessons%20from%20the%20eBPF%20Foundation.pdf

What a week! 😅 @linuxplumbersconf 2025 is officially over, and what an edition it was.

We went all out this year, covering everything from Linux System Observability and Kernel Testing to Gaming and sched_ext!

Thanks to the organizers and everyone who joined our eight talks. See you at the next #LinuxPlumbers! 👋🐧