grpc: Heap-buffer-overflow in server_filter_incoming_metadata

Detailed report: https://oss-fuzz.com/testcase?key=5417405008314368 Project: grpc Fuzzer: libFuzzergrpcserverfuzzer Fuzz target binary: serverfuzzer Job Type: libfuzzerasangrpc Platform Id: linux Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x607000001799 Crash State:...