graphicsmagick/coder_PCT_fuzzer: Heap-use-after-free in GetLocaleExceptionMessage

Detailed report: https://oss-fuzz.com/testcase?key=5966407209582592 Project: graphicsmagick Fuzzer: aflgraphicsmagickcoderPCTfuzzer Fuzz target binary: coderPCTfuzzer Job Type: aflasangraphicsmagick Platform Id: linux Crash Type: Heap-use-after-free READ 1 Crash Address: 0x6250001a71ed Crash Stat...