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-rw-r--r--libavformat/asfdec.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 6a71be9ab2..6dc34d9735 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -776,6 +776,8 @@ static int asf_read_stream_properties(AVFormatContext *s, const GUIDParseTable *
asf_st->span = span;
asf_st->virtual_pkt_len = avio_rl16(pb);
asf_st->virtual_chunk_len = avio_rl16(pb);
+ if (!asf_st->virtual_chunk_len || !asf_st->virtual_pkt_len)
+ return AVERROR_INVALIDDATA;
avio_skip(pb, err_data_len - 5);
} else
avio_skip(pb, err_data_len - 1);