From abb5762e985f4ce34e97c1b2fa6d1108ce8a881f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 2 Feb 2020 20:02:55 +0100 Subject: [PATCH] avcodec/audiodsp: Fix integer overflow in scalarproduct_int16_c() Fixes: signed integer overflow: 2145417478 + 76702564 cannot be represented in type 'int' Fixes: 20313/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RA_144_fuzzer-5734487724130304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/audiodsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/audiodsp.c b/libavcodec/audiodsp.c index 3c7a3a7583..efcb0a8e8a 100644 --- a/libavcodec/audiodsp.c +++ b/libavcodec/audiodsp.c @@ -79,7 +79,7 @@ static void vector_clipf_c(float *dst, const float *src, int len, static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2, int order) { - int res = 0; + unsigned res = 0; while (order--) res += *v1++ **v2++;