libjpeg-turbo: Heap-buffer-overflow in gray_extrgb_convert_internal

Project: https://github.com/libjpeg-turbo/libjpeg-turbo.git Detailed report: https://clusterfuzz-external.appspot.com/testcase?key=6448589773471744 Project: libjpeg-turbo Fuzzer: libFuzzerlibjpeg-turbolibjpegturbofuzzer Fuzz target binary: libjpegturbofuzzer Job Type: libfuzzerasanlibjpeg-turbo...