Bound exec-server JSON-RPC decoding complexity - #33013
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## Why Compact JSON arrays can expand into millions of heap values during decoding, and duplicate object keys make a message ambiguous. ## What changed - Limit exec-server JSON-RPC messages to 256K JSON values and reject duplicate object keys. - Cap `fs/read_directory` results and retained `process/read` output at 50,000 entries or chunks so locally produced responses remain within the decoder budget. ## Testing Add coverage for all JSON-RPC variants, large scalar payloads, duplicate keys, compact array amplification, and retained process output at the chunk limit. GitOrigin-RevId: e31d1f25ab0a7e2272015c98174fd2b7cdd669d7
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Bound exec-server JSON-RPC decoding complexity
Why
Compact JSON arrays can expand into millions of heap values during decoding, and duplicate object keys make a message ambiguous.
What changed
fs/read_directoryresults and retainedprocess/readoutput at 50,000 entries or chunks so locally produced responses remain within the decoder budget.Testing
Add coverage for all JSON-RPC variants, large scalar payloads, duplicate keys, compact array amplification, and retained process output at the chunk limit.