From 9244b839b788e4677019041907ff5a4378a23490 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 7 Apr 2017 22:27:50 +0200 Subject: [PATCH] avcodec/dcadsp: Fix runtime error: signed integer overflow Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/dcadsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/dcadsp.c b/libavcodec/dcadsp.c index 4f1e933cfb..fade1a6c02 100644 --- a/libavcodec/dcadsp.c +++ b/libavcodec/dcadsp.c @@ -320,7 +320,7 @@ static void dmix_sub_c(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t le int i; for (i = 0; i < len; i++) - dst[i] -= mul15(src[i], coeff); + dst[i] -= (unsigned)mul15(src[i], coeff); } static void dmix_add_c(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len)