From 2e876cd86a92ce83cf5762e451cf94e0272da149 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 12 Mar 2017 03:04:05 +0100 Subject: [PATCH] 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 (cherry picked from commit a66c6e28b543804f50df1c6083a204219b6b1daa) Signed-off-by: Michael Niedermayer --- libavcodec/rv34.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c index 6e86ebd35e..2997285a67 100644 --- a/libavcodec/rv34.c +++ b/libavcodec/rv34.c @@ -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; }