ffmpeg: Heap-buffer-overflow in vp8_lossy_decode_alpha

Project: https://git.ffmpeg.org/ffmpeg.git Detailed report: https://oss-fuzz.com/testcase?key=6044604124102656 Project: ffmpeg Fuzzer: aflffmpegAVCODECIDWEBPfuzzer Fuzz target binary: ffmpegAVCODECIDWEBPfuzzer Job Type: aflasanffmpeg Platform Id: linux Crash Type: Heap-buffer-overflow WRITE 1 Cra...