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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-17 20:56:23 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-31 19:51:56 +0100 |
| commit | 72c9dab15d8e528721595975c5d872d6aba29ec0 (patch) | |
| tree | 806fcf38788d62c9ee920857893a933e6d00a158 | |
| parent | f9738b2af3d4127d495b6841f04b75f03badf4d8 (diff) | |
| download | ffmpeg-72c9dab15d8e528721595975c5d872d6aba29ec0.tar.gz | |
avcodec/apedec: Fix undefined integer overflow in long_filter_ehigh_3830()
Fixes: signed integer overflow: -1094995529 * 2 cannot be represented in type 'int'
Fixes: 18281/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5692589180715008
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 1d1719a44dd43b2d9d8ccd26e3b2854e675a7bd7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/apedec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 9409a4727d..315bd162d5 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -916,7 +916,8 @@ static void long_filter_ehigh_3830(int32_t *buffer, int length) { int i, j; int32_t dotprod, sign; - int32_t coeffs[8] = { 0 }, delay[8] = { 0 }; + int32_t delay[8] = { 0 }; + uint32_t coeffs[8] = { 0 }; for (i = 0; i < length; i++) { dotprod = 0; |