From 1f686d023b95219db933394a7704ad9aa5f01cbb Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 15 Feb 2019 01:57:09 +0100 Subject: [PATCH] avcodec/mpeg4videodec: Clear interlaced_dct for studio profile Fixes: Out of array access Fixes: 13090/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5408668986638336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Kieran Kunhya Signed-off-by: Michael Niedermayer --- libavcodec/mpeg4videodec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index f44ee76bd4..ecd028a87c 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -3057,6 +3057,7 @@ static int decode_studio_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb) return 0; s->partitioned_frame = 0; + s->interlaced_dct = 0; s->decode_mb = mpeg4_decode_studio_mb; decode_smpte_tc(ctx, gb);