Fixes: division by zero Fixes: 43769/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AV1_fuzzer-5392562205097984
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/av1dec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/av1dec.c b/libavcodec/av1dec.c index 62d459cded..581f22a849 100644 --- a/libavcodec/av1dec.c +++ b/libavcodec/av1dec.c @@ -394,6 +394,9 @@ static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_gro s->tg_start = tile_group->tg_start; s->tg_end = tile_group->tg_end; + if (s->raw_frame_header->tile_cols == 0) + return AVERROR_INVALIDDATA; + for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) { tile_row = tile_num / s->raw_frame_header->tile_cols; tile_col = tile_num % s->raw_frame_header->tile_cols; -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
