Linux Kernel Live Patching in Production
transcript
show notes
We examine how Linux kernel live patching actually works in high-uptime environments, using Canonical’s Ksplice and Red Hat’s kpatch as primary case studies. Lucas breaks down the technical mechanism of hot-patching memory while processes run, and Luna questions the security trade-offs of injecting code into a running kernel. We look at real-world deployment stats from Fortune 500 infrastructure teams who rely on this to avoid maintenance windows. The episode covers the limitations of what can be patched, the overhead costs, and why this feature has become non-negotiable for cloud-native stability.
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