Shared KV-cache blocks in LLM serving systems are vulnerable to bit flips that cause silent, selective, and persistent output changes, distinct from weight attacks, and detectable by checksums.
Prevent side-channel attacks via cache salting
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Bit-Flip Vulnerability of Shared KV-Cache Blocks in LLM Serving Systems
Shared KV-cache blocks in LLM serving systems are vulnerable to bit flips that cause silent, selective, and persistent output changes, distinct from weight attacks, and detectable by checksums.