graphicsmagick:coder_DCM_fuzzer: Use-of-uninitialized-value in jas_stream_fillbuf

Project: http://hg.code.sf.net/p/graphicsmagick/code Detailed Report: https://oss-fuzz.com/testcase?key=6486374839812096 Project: graphicsmagick Fuzzing Engine: libFuzzer Fuzz Target: coderDCMfuzzer Job Type: libfuzzermsangraphicsmagick Platform Id: linux Crash Type: Use-of-uninitialized-value...