diff options
| -rw-r--r-- | libavcodec/4xm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index bb380f6779..dc0ad506d5 100644 --- a/libavcodec/4xm.c +++ b/libavcodec/4xm.c @@ -375,6 +375,7 @@ static int decode_p_block(FourXContext *f, uint16_t *dst, uint16_t *src, log2w, log2h, stride)) < 0) return ret; } else if (code == 3 && f->version < 2) { + av_assert0(start <= src && src <= end); mcdc(dst, src, log2w, h, stride, 1, 0); } else if (code == 4) { if (bytestream2_get_bytes_left(&f->g) < 1) { @@ -396,6 +397,7 @@ static int decode_p_block(FourXContext *f, uint16_t *dst, uint16_t *src, av_log(f->avctx, AV_LOG_ERROR, "wordstream overread\n"); return AVERROR_INVALIDDATA; } + av_assert0(start <= src && src <= end); mcdc(dst, src, log2w, h, stride, 0, bytestream2_get_le16u(&f->g2)); } else if (code == 6) { if (bytestream2_get_bytes_left(&f->g2) < 4) { |