diff options
| -rw-r--r-- | libavcodec/vb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/vb.c b/libavcodec/vb.c index 560165adc7..021657f7d8 100644 --- a/libavcodec/vb.c +++ b/libavcodec/vb.c @@ -205,6 +205,10 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, if (flags & VB_HAS_GMC) { i = (int16_t)bytestream2_get_le16(&c->stream); j = (int16_t)bytestream2_get_le16(&c->stream); + if (FFABS(j) > avctx->height) { + av_log(avctx, AV_LOG_ERROR, "GMV out of range\n"); + return AVERROR_INVALIDDATA; + } offset = i + j * avctx->width; } if (flags & VB_HAS_VIDEO) { |