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Fix a memory leak on returning incompatible values #2424

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merged 1 commit into from
Nov 16, 2020

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This fixes an issue where if a store-incompatible value is returned from
a host-defined function then that value is leaked. Practically this
means that it's possible to accidentally leak Func values, but a
simple insertion of a drop does the trick!

This fixes an issue where if a store-incompatible value is returned from
a host-defined function then that value is leaked. Practically this
means that it's possible to accidentally leak `Func` values, but a
simple insertion of a `drop` does the trick!
@github-actions github-actions bot added the wasmtime:api Related to the API of the `wasmtime` crate itself label Nov 16, 2020
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@alexcrichton alexcrichton merged commit 8675fa5 into bytecodealliance:main Nov 16, 2020
@alexcrichton alexcrichton deleted the fix-leak2 branch November 16, 2020 20:26
cfallin pushed a commit that referenced this pull request Nov 30, 2020
This fixes an issue where if a store-incompatible value is returned from
a host-defined function then that value is leaked. Practically this
means that it's possible to accidentally leak `Func` values, but a
simple insertion of a `drop` does the trick!
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