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wasm2c support #2

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zyedidia opened this issue Jul 23, 2023 · 2 comments
Open

wasm2c support #2

zyedidia opened this issue Jul 23, 2023 · 2 comments

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@zyedidia
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Is wasm2c still supported? It looks like this project switched from wasm2c to w2c2 as the default, but there is still some leftover code from wasm2c. I briefly tried to get it working, but it looks like maybe the old code is no longer compatible with the latest version of wasm2c, is that correct?
@vshymanskyy
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What is the motivation behind moving back to wasm2c?

@zyedidia
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The motivation was that wasm2c at least attempts to sandbox WebAssembly code, while w2c2 is not meant for sandboxing. For example, w2c2 does not perform type-safety checks on indirect calls, making it easy to perform a sandbox breakout attack. Since opening this issue though I have made my own adaptation of wasm2native that supports wasm2c, so I no longer consider this an important issue -- feel free to close it.

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@vshymanskyy @zyedidia