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fix: release RUN COMMAND expression temporaries

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Hermes Agent
2026-10-05 06:50:04 +00:00
parent d844d8cb85
commit 3ce494b56c
3 changed files with 45 additions and 2 deletions
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@@ -38,7 +38,7 @@ The `FIND ... IN ... AS ...` command now releases its evaluated search value and
`PUT ... KEY ... VALUE ...` now releases the evaluated map, key, and value copies after runtime storage has copied them. `python3 tools/validate_put_expression_cleanup.py` passes with 2,000 repeated string writes under ASan/UBSan/LSan. Verified 2026-09-26: `make -s all`, `./claro test` (0 failures), `./claro doctor`, `./claro validate`, the focused sanitizer validator, and `git diff --check` pass. Separate malformed-argument sanitizer smoke tests for the existing builtin-arity and inverted-range diagnostics do not report out-of-bounds access, but LeakSanitizer reports the already documented `rt_error` diagnostic-string leaks (552 bytes/14 allocations for arity cases; 79 bytes/2 allocations for the inverted-range case). This slice is runtime-verified; those error-path leaks remain a separate blocker to claiming sanitizer-clean diagnostics.
The `RUN COMMAND` path now decodes POSIX `pclose()` wait status before storing `LASTEXIT`, so a child that exits with code 3 exposes `3` rather than the encoded status 768. Focused coverage is `tests/42_last_exit_code.claro`. HTTP responses now have a 1,048,576-byte cap and marker-like response bodies are preserved while extracting the final HTTP status marker. Focused coverage is `tools/validate_http_hardening.py`. Remaining memory-growth areas include other expression temporaries. Claro remains a trusted-script interpreter, not a sandbox.
The `RUN COMMAND` path now decodes POSIX `pclose()` wait status before storing `LASTEXIT`, so a child that exits with code 3 exposes `3` rather than the encoded status 768. Focused coverage is `tests/42_last_exit_code.claro`. HTTP responses now have a 1,048,576-byte cap and marker-like response bodies are preserved while extracting the final HTTP status marker. Focused coverage is `tools/validate_http_hardening.py`. Remaining memory-growth areas include other expression temporaries. Claro remains a trusted-script interpreter, not a sandbox. `RUN COMMAND` now releases its evaluated command expression and temporary captured-output value after copying output into runtime storage. The new `tools/validate_run_command_expression_cleanup.py` first detected 12,000 bytes leaked across 2,000 command executions, then passed under ASan/UBSan/LSan after the ownership fix.
`RUN COMMAND` is documented and validated as a trusted-code capability: it executes shell commands with the user's permissions and is not a sandbox. Claro does not claim untrusted-script safety or use a fragile blacklist sanitizer. Focused documentation coverage is `tools/validate_trusted_command_docs.py`.