diff options
| -rw-r--r-- | libavformat/iff.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/iff.c b/libavformat/iff.c index e66292c785..6c52c6057b 100644 --- a/libavformat/iff.c +++ b/libavformat/iff.c @@ -501,6 +501,9 @@ static int iff_read_header(AVFormatContext *s) case ID_DST: case ID_MDAT: iff->body_pos = avio_tell(pb); + if (iff->body_pos < 0 || iff->body_pos + data_size > INT64_MAX) + return AVERROR_INVALIDDATA; + iff->body_end = iff->body_pos + data_size; iff->body_size = data_size; if (chunk_id == ID_DST) { |