graphicsmagick/coder_TIM_fuzzer: Use-of-uninitialized-value in SyncImageCallBack

Project: http://hg.code.sf.net/p/graphicsmagick/code Detailed report: https://oss-fuzz.com/testcase?key=5173489750245376 Project: graphicsmagick Fuzzer: libFuzzergraphicsmagickcoderTIMfuzzer Fuzz target binary: coderTIMfuzzer Job Type: libfuzzermsangraphicsmagick Platform Id: linux Crash Type:...