[FFmpeg-devel] [PATCH 2/9] 4xm: prevent overflow during block alignment calculation

[Andreas Cadhalpun]

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com>
---
 libavformat/4xm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 2758b69d29..45949c4e97 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -187,6 +187,7 @@ 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;
+    FF_RETURN_ON_OVERFLOW(s, st->codecpar->channels && st->codecpar->bits_per_coded_sample > INT_MAX / st->codecpar->channels)
     st->codecpar->block_align           = st->codecpar->channels *
                                           st->codecpar->bits_per_coded_sample;
 
-- 
2.11.0