dlplibs/pdbfuzzer: Container-overflow in ucnv_UTF8FromUTF8

Detailed report: https://oss-fuzz.com/testcase?key=5380728251482112 Project: dlplibs Fuzzer: libFuzzerdlplibspdbfuzzer Fuzz target binary: pdbfuzzer Job Type: libfuzzerasandlplibs Platform Id: linux Crash Type: Container-overflow READ 1 Crash Address: 0x604000000b32 Crash State: ucnvUTF8FromUTF8...