Kernel Live Patching for Clang LTO Kernel

Kernel Live Patching for Clang LTO Kernel

Explore the intricacies of live patching with Clang-built LTO kernels in this Linux Plumbers Conference talk. Delve into the challenges of comparing with vmlinux binary, learn about utilizing Clang LTO internal flags for pre-linker object file comparison, and understand the complications introduced by new special symbols in LTO. Discover how the build system needs to adapt to these changes and discuss potential improvements to kpatch for supporting comparisons with vmlinux itself. Gain valuable insights into the latest developments in kernel live patching techniques and their implications for system maintenance and security.