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September 13-16, 2022
Dublin, Ireland + Virtual
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Friday, September 16 • 16:50 - 17:30
Livepatch in Userspace Based on Uprobe - Longjun Luo, Huawei

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As we all know, the livepatch mechanism plays a vital role in solving CVEs and BUGs. We try to apply some ideas from the kpatch and the kernel livepatch to software in the userspace. This topic will talk about the following questions: 1. How can we modify the compiler arguments and obtained the necessary middle and final output files without any change to the build system of projects? 2. How can we generate a patch file from the diff file? 3. How can we recognize the running processes which need specific patches? 4. How can we apply patches in the userspace with the help of code injection?
Speakers
avatar for Longjun Luo

Longjun Luo

Engineer, Huawei
Longjun is a software engineer from Huawei. His work is mainly about live-patch and seamless kernel updates. He is an active open-source developer who has made contributions to some projects including Linux kernel, Criu, Binutils, Kpatch, Toybox, etc. He has a strong interest in science... Read More →

OSS EU22 Livepatch in Userspace pdf
Friday September 16, 2022 16:50 - 17:30 IST
Auditorium (Level 3)
  LinuxCon, Live Patching