Fixes use of uninitialized data
Fixes: signal_sigsegv_1571228_5930_ipmovie_interplayvideo_interplay_dpcm__bislogo.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
case OPCODE_INIT_VIDEO_BUFFERS:
av_dlog(NULL, "initialize video buffers\n");
- if ((opcode_version > 2) || (opcode_size > 8)) {
+ if ((opcode_version > 2) || (opcode_size > 8) || opcode_size < 4) {
av_dlog(NULL, "bad init_video_buffers opcode\n");
chunk_type = CHUNK_BAD;
break;