WebAssembly / WebAssembly/wabt
incorrect table.copy in mixed table index types
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- Dominant language
- C++
- Stars
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- Merged PRs (30d)
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Description
Build
Build wasm-interp in debug mode
Command
./wasm-interp --enable-memory64 poc.wasm --run-export test
Observed result
Debug assertion failure in include/wabt/interp/interp.h:587
Expected behavior
The module should execute successfully
Environment
- wabt 1.0.39
- OS: Linux x86_64 Ubuntu
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with include/wabt/interp/interp.h:587 and reproduce the failure by building wasm-interp in debug mode, then running the supplied poc.wasm with --enable-memory64 and --run-export test. Trace the table.copy operation for mixed table index types; done means the module executes successfully without the debug assertion.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, wasm
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 50/100