ffmpeg: Index-out-of-bounds in vlc_decode_block

Project: https://git.ffmpeg.org/ffmpeg.git Detailed report: https://oss-fuzz.com/testcase?key=5235964056174592 Project: ffmpeg Fuzzer: libFuzzerffmpegAVCODECIDMIMICfuzzer Fuzz target binary: ffmpegAVCODECIDMIMICfuzzer Job Type: libfuzzerubsanffmpeg Platform Id: linux Crash Type: Index-out-of-boun...