G.Skill has recently launched two DDR5 memory kits running at 6000MT/s with a CAS latency of 26. These modules come in 2x16GB and 2x32GB configurations and feature timings of CL26-36-36-96 ...

This is not Linux kernel maintainer's tree, but an open-source work in progress. Officially maintained repositories are under kernel.org (Samsung SoC, memory controller drivers etc.).