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ext_proc fuzzer test exposed a race issue which leads to ENVOY_BUG #27639

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merged 7 commits into from
Jun 2, 2023
Merged

ext_proc fuzzer test exposed a race issue which leads to ENVOY_BUG #27639

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f1f246e
ext_proc fuzzer test exposed a race issue which leads to ENVOY_BUG in…
yanjunxiang-google May 25, 2023
8e9d5e5
Merge branch 'main' of https://github.com/envoyproxy/envoy into open_…
yanjunxiang-google May 30, 2023
0ebd8c7
Merge branch 'main' of https://github.com/envoyproxy/envoy into open_…
yanjunxiang-google May 30, 2023
3bfe644
adding stream_ check
yanjunxiang-google May 31, 2023
7e3f10b
addressing comments
yanjunxiang-google May 31, 2023
595f038
ENVOY_LOG
yanjunxiang-google Jun 2, 2023
4bea75d
addressing comments
yanjunxiang-google Jun 2, 2023
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8 changes: 7 additions & 1 deletion source/extensions/filters/http/ext_proc/ext_proc.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,13 @@ void Filter::setEncoderFilterCallbacks(Http::StreamEncoderFilterCallbacks& callb
}

Filter::StreamOpenState Filter::openStream() {
ENVOY_BUG(!processing_complete_, "openStream should not have been called");
// External processing is completed. This means there is no need to send any further
// message to the server for processing. Just return IgnoreError so the filter
// will return FilterHeadersStatus::Continue.
if (processing_complete_) {
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ENVOY_LOG(debug, "External processing is completed when trying to open the gRPC stream");
return StreamOpenState::IgnoreError;
}
if (!stream_) {
ENVOY_LOG(debug, "Opening gRPC stream to external processor");
stream_ = client_->start(*this, grpc_service_, decoder_callbacks_->streamInfo());
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70 changes: 70 additions & 0 deletions ...tp/ext_proc/unit_test_fuzz/ext_proc_corpus/crash-232906f11069ff930e29c13c1a3ae5a2c3202c57
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