Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/dcstr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/dcstr.c b/libavformat/dcstr.c
index 69fae41..d5d2281 100644
--- a/libavformat/dcstr.c
+++ b/libavformat/dcstr.c
@@ -47,7 +47,7 @@ static int dcstr_read_header(AVFormatContext *s)
avio_skip(s->pb, 4);
st->duration = avio_rl32(s->pb);
st->codecpar->channels *= avio_rl32(s->pb);
- if (!align || align > INT_MAX / st->codecpar->channels)
+ if (!align || !st->codecpar->channels || align > INT_MAX /
st->codecpar->channels)
return AVERROR_INVALIDDATA;
st->codecpar->block_align = align * st->codecpar->channels;
--
2.9.3
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