Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/astdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/astdec.c b/libavformat/astdec.c
index f3ca721..7a53d0b 100644
--- a/libavformat/astdec.c
+++ b/libavformat/astdec.c
@@ -90,7 +90,7 @@ static int ast_read_packet(AVFormatContext *s, AVPacket *pkt)
pos = avio_tell(s->pb);
type = avio_rl32(s->pb);
size = avio_rb32(s->pb);
- if (size > INT_MAX / s->streams[0]->codecpar->channels)
+ if (!s->streams[0]->codecpar->channels || size > INT_MAX /
s->streams[0]->codecpar->channels)
return AVERROR_INVALIDDATA;
size *= s->streams[0]->codecpar->channels;
--
2.9.3
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