diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/vc1.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index e102b931d8..42bfca55b1 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -933,7 +933,9 @@ int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb) else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) { v->refdist = get_bits(gb, 2); if (v->refdist == 3) - v->refdist += get_unary(gb, 0, 16); + v->refdist += get_unary(gb, 0, 14); + if (v->refdist > 16) + return AVERROR_INVALIDDATA; } if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) { if (read_bfraction(v, gb) < 0) |