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Merge pull request from GHSA-v4cp-h94r-m7xf

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Fix a use-after-free bug when passing `ExternRef`s to Wasm
This commit is contained in:
Nick Fitzgerald
2021-09-17 10:27:29 -07:00
committed by GitHub
parent e56312e61a d2ce1ac753
commit 101998733b
14 changed files with 665 additions and 106 deletions
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4
cranelift/wasm/src/environ/dummy.rs
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@@ -688,8 +688,8 @@ impl<'data> ModuleEnvironment<'data> for DummyEnvironment {
WasmType::FuncRef | WasmType::ExternRef | WasmType::ExnRef => reference_type,
})
};
sig.params.extend(wasm.params.iter().map(&mut cvt));
sig.returns.extend(wasm.returns.iter().map(&mut cvt));
sig.params.extend(wasm.params().iter().map(&mut cvt));
sig.returns.extend(wasm.returns().iter().map(&mut cvt));
self.info.signatures.push(sig);
Ok(())
}