diff options
| -rw-r--r-- | libavformat/vividas.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libavformat/vividas.c b/libavformat/vividas.c index 0c33ca2da8..645e322b6e 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -392,8 +392,14 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t * p = st->codecpar->extradata; p[0] = 2; - for (j = 0; j < num_data - 1; j++) - offset += av_xiphlacing(&p[offset], data_len[j]); + for (j = 0; j < num_data - 1; j++) { + unsigned delta = av_xiphlacing(&p[offset], data_len[j]); + if (delta > data_len[j]) { + av_free(pb); + return AVERROR_INVALIDDATA; + } + offset += delta; + } for (j = 0; j < num_data; j++) { int ret = avio_read(pb, &p[offset], data_len[j]); |