wabt:read_binary_ir_fuzzer: Use-of-uninitialized-value in wabt::BinaryReaderIR::OnOpcode

Project: https://github.com/WebAssembly/wabt.git Detailed Report: https://oss-fuzz.com/testcase?key=5270844836020224 Project: wabt Fuzzing Engine: libFuzzer Fuzz Target: readbinaryirfuzzer Job Type: libfuzzermsanwabt Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash...