freeradius:fuzzer_json: Heap-buffer-overflow in fr_utf8_char

Detailed Report: https://oss-fuzz.com/testcase?key=6558953457909760 Project: freeradius Fuzzing Engine: libFuzzer Fuzz Target: fuzzerjson Job Type: libfuzzerasanfreeradius Platform Id: linux Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x750350ce0153 Crash State: frutf8char frjpathparse...