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n-api: fix use-after-free with napi_remove_async_cleanup_hook #34662

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n-api: fix use-after-free with napi_remove_async_cleanup_hook #34662

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7ff8795
src: fix `size` underflow in CallbackQueue
addaleax Aug 7, 2020
60941d6
src: spin shutdown loop while immediates are pending
addaleax Aug 7, 2020
b94ceaf
n-api: fix use-after-free with napi_remove_async_cleanup_hook
addaleax Aug 7, 2020
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src: spin shutdown loop while immediates are pending 
This allows using `SetImmediate()` and friends at any point
during cleanup.
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@addaleax
addaleax committed Aug 7, 2020
commit 60941d60650e2707cff5c995a2e81bdc1b7ac59a
5 changes: 4 additions & 1 deletion src/env.cc
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Expand Up @@ -634,7 +634,10 @@ void Environment::RunCleanup() {
initial_base_object_count_ = 0;
CleanupHandles();

while (!cleanup_hooks_.empty()) {
while (!cleanup_hooks_.empty() ||
native_immediates_.size() > 0 ||
native_immediates_threadsafe_.size() > 0 ||
native_immediates_interrupts_.size() > 0) {
// Copy into a vector, since we can't sort an unordered_set in-place.
std::vector<CleanupHookCallback> callbacks(
cleanup_hooks_.begin(), cleanup_hooks_.end());
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