graphicsmagick:coder_WPG_fuzzer: Use-of-uninitialized-value in GrayscalePseudoClassImage

Detailed Report: https://oss-fuzz.com/testcase?key=6391553758986240 Project: graphicsmagick Fuzzing Engine: libFuzzer Fuzz Target: coderWPGfuzzer Job Type: libfuzzermsangraphicsmagick Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State: GrayscalePseudoClassImage...