Storing translation layer metadata in host memory buffer

A method comprising:

• receiving, by a processing device of a memory system, from the host system, translation layer metadata and associated protection metadata, wherein the translation layer metadata comprises one or more logical-to-physical (L2P) records, wherein an L2P record of the one or more of L2P records maps a logical block address to a physical address identifying a memory block in the memory system;
• validating, using the associated protection metadata, the translation layer metadata;
• and
• utilizing the translation layer metadata for performing a memory access operation.

A method comprising:

• retrieving, by a processing device of a memory system, from a non-volatile memory device of the memory system, translation layer metadata comprising one or more logical-to-physical (L2P) records, wherein an L2P record of the one or more of L2P records maps a logical block address to a physical address identifying a memory block in the memory system;
• storing the translation layer metadata on a volatile memory device of the memory sub-system;
• retrieving, from the volatile memory device, at least a portion of the translation layer metadata;
• generating protection metadata for the portion of the translation layer metadata;
• and
• causing a host system connected to the memory system to store the portion of the translation layer metadata and the protection metadata in a host memory buffer residing on a non-volatile memory device of the host system.