diff options
| -rw-r--r-- | libavformat/mxfdec.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index d305e73977..582c120c8d 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -484,6 +484,14 @@ static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size partition->previous_partition, footer_partition, partition->index_sid, partition->body_sid); + /* sanity check PreviousPartition if set */ + if (partition->previous_partition && + mxf->run_in + partition->previous_partition >= klv_offset) { + av_log(mxf->fc, AV_LOG_ERROR, + "PreviousPartition points to this partition or forward\n"); + return AVERROR_INVALIDDATA; + } + if (op[12] == 1 && op[13] == 1) mxf->op = OP1a; else if (op[12] == 1 && op[13] == 2) mxf->op = OP1b; else if (op[12] == 1 && op[13] == 3) mxf->op = OP1c; |