Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/4xm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 2758b69..308d889 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -187,6 +187,11 @@ static int parse_strk(AVFormatContext *s,
st->codecpar->bit_rate = (int64_t)st->codecpar->channels *
st->codecpar->sample_rate *
st->codecpar->bits_per_coded_sample;
+ if (st->codecpar->channels && st->codecpar->bits_per_coded_sample >
INT_MAX / st->codecpar->channels) {
+ av_log(s, AV_LOG_ERROR, "Overflow during block alignment calculation
%d * %d\n",
+ st->codecpar->channels, st->codecpar->bits_per_coded_sample);
+ return AVERROR_INVALIDDATA;
+ }
st->codecpar->block_align = st->codecpar->channels *
st->codecpar->bits_per_coded_sample;
--
2.10.2
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