llvm:clangd-fuzzer: Heap-buffer-overflow in llvm::raw_ostream::copy_to_buffer

Detailed Report: https://oss-fuzz.com/testcase?key=6365487988342784 Project: llvm Fuzzing Engine: libFuzzer Fuzz Target: clangd-fuzzer Job Type: libfuzzerasanllvm Platform Id: linux Crash Type: Heap-buffer-overflow WRITE 1 Crash Address: 0x625000004900 Crash State: llvm::rawostream::copytobuffer...