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avcodec/rv34: Fix runtime error: signed integer overflow: 36880 * 66288 cannot be represented in type 'int' 

Fixes: 768/clusterfuzz-testcase-4807444305805312

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a66c6e28b5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-03-12 03:04:05 +01:00
parent 551b01c5d0
commit 2e876cd86a
1 changed files with 1 additions and 1 deletions
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2
libavcodec/rv34.c
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@ -1627,7 +1627,7 @@ static AVRational update_sar(int old_w, int old_h, AVRational sar, int new_w, in
if (!sar.num)
sar = (AVRational){1, 1};
sar = av_mul_q(sar, (AVRational){new_h * old_w, new_w * old_h});
sar = av_mul_q(sar, av_mul_q((AVRational){new_h, new_w}, (AVRational){old_w, old_h}));
return sar;
}