diff options
| -rw-r--r-- | libavcodec/h264_ps.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c index 7c92c68b38..e8738d8502 100644 --- a/libavcodec/h264_ps.c +++ b/libavcodec/h264_ps.c @@ -451,6 +451,15 @@ int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx, sps->delta_pic_order_always_zero_flag = get_bits1(gb); sps->offset_for_non_ref_pic = get_se_golomb_long(gb); sps->offset_for_top_to_bottom_field = get_se_golomb_long(gb); + + if ( sps->offset_for_non_ref_pic == INT32_MIN + || sps->offset_for_top_to_bottom_field == INT32_MIN + ) { + av_log(avctx, AV_LOG_ERROR, + "offset_for_non_ref_pic or offset_for_top_to_bottom_field is out of range\n"); + goto fail; + } + sps->poc_cycle_length = get_ue_golomb(gb); if ((unsigned)sps->poc_cycle_length >= @@ -460,8 +469,14 @@ int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx, goto fail; } - for (i = 0; i < sps->poc_cycle_length; i++) + for (i = 0; i < sps->poc_cycle_length; i++) { sps->offset_for_ref_frame[i] = get_se_golomb_long(gb); + if (sps->offset_for_ref_frame[i] == INT32_MIN) { + av_log(avctx, AV_LOG_ERROR, + "offset_for_ref_frame is out of range\n"); + goto fail; + } + } } else if (sps->poc_type != 2) { av_log(avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type); goto fail; |