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avcodec/audiodsp: Fix integer overflow in scalarproduct_int16_c()

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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 <michael@niedermayer.cc>
(cherry picked from commit abb5762e985f4ce34e97c1b2fa6d1108ce8a881f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-02-02 20:02:55 +01:00
parent 94af3d9ca6
commit 2d3dd65a4b
1 changed files with 1 additions and 1 deletions
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libavcodec/audiodsp.c
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@ -79,7 +79,7 @@ static void vector_clipf_c(float *dst, const float *src,
static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2, static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2,
int order) int order)
{ {
int res = 0; unsigned res = 0;
while (order--) while (order--)
res += *v1++ **v2++; res += *v1++ **v2++;