DLR-FT/wasm-interpreter

Handling of invalid instructions during execution

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#86 opened on Sep 10, 2024

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Description

Currently we skip invalid instructions in the main interpreter loop. Should we instead panic here to avoid possible misinterpretation of the following instructions? This could also be an issue for security.

https://github.com/DLR-FT/wasm-interpreter/blob/219d9336e117eb62fc954a21aeaad1e9c2c14193/src/execution/interpreter_loop.rs#L1406-L1408

Contributor guide

Research direction
Examine the interpreter loop at the linked lines (1406-1408) and analyze the security and correctness implications of skipping invalid instructions vs panicking. Consider whether a panic would prevent misinterpretation and improve security.
Tech stack
rust
Domain
compilersbackend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60