Fixes: member access within null pointer of type 'TileGroupInfo' (aka 'struct TileGroupInfo') Fixes: 25725/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AV1_fuzzer-5166692706287616
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 0bb04a3e44..cf3a78aad8 100644 --- a/libavcodec/av1dec.c +++ b/libavcodec/av1dec.c @@ -209,6 +209,9 @@ static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_gro uint16_t tile_num, tile_row, tile_col; uint32_t size = 0, size_bytes = 0; + if (s->tile_num != s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows) + return AVERROR_INVALIDDATA; + bytestream2_init(&gb, tile_group->tile_data.data, tile_group->tile_data.data_size); s->tg_start = tile_group->tg_start; -- 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".
