Wasmtime GitHub notifications bot (Aug 08 2020 at 01:46): Wasmtime GitHub notifications bot (Aug 08 2020 at 01:46):cfallin opened PR #2120 from wasm-unreachable-if-else-params to main:
The Wasm translation handles unreachable code sections
specially, skipping ops until the end of a block and a control-flow
merger at which code becomes reachable again. Unfortunately, while the
ordinary else-op handler properly sets up the value stack for the
else-branch with the parameters to the if/else, the unreachable-case
else-op handler did not. This resulted in a bad translation and CLIF
type error despite valid Wasm.Found via fuzzing by :decoder in
https://bugzilla.mozilla.org/show_bug.cgi?id=1657895.<!--
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Wasmtime GitHub notifications bot (Aug 08 2020 at 01:46):cfallin requested fitzgen for a review on PR #2120.
Wasmtime GitHub notifications bot (Aug 10 2020 at 15:28):fitzgen submitted PR Review.
Wasmtime GitHub notifications bot (Aug 10 2020 at 15:36):fitzgen merged PR #2120.
Last updated: Nov 22 2024 at 16:03 UTC