llvm:clang-objc-fuzzer: Global-buffer-overflow in ProcessUCNEscape

Detailed Report: https://oss-fuzz.com/testcase?key=5085532385968128 Project: llvm Fuzzing Engine: libFuzzer Fuzz Target: clang-objc-fuzzer Job Type: libfuzzerasanllvm Platform Id: linux Crash Type: Global-buffer-overflow READ 4 Crash Address: 0x00000ccfc3dc Crash State: ProcessUCNEscape...