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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-05-10 21:12:22 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-05-12 01:00:28 +0200 |
| commit | 8627885172cc54db95f86529d134308d4d095054 (patch) | |
| tree | a8911c144790734317a9ab0f2c7a5bb5e2a4a4bf | |
| parent | 0c4330847c104fcf3ef929c1acee33b5b34c20db (diff) | |
| download | ffmpeg-8627885172cc54db95f86529d134308d4d095054.tar.gz | |
avcodec/ttadsp: Fix several integer overflows in tta_filter_process_c()
Fixes: signed integer overflow: 1931744255 + 252497024 cannot be represented in type 'int'
Fixes: 20492/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5763348114440192
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ttadsp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/ttadsp.c b/libavcodec/ttadsp.c index 056a2c7ef1..1d1443aee0 100644 --- a/libavcodec/ttadsp.c +++ b/libavcodec/ttadsp.c @@ -20,9 +20,11 @@ #include "ttadsp.h" #include "config.h" -static void tta_filter_process_c(int32_t *qm, int32_t *dx, int32_t *dl, +static void tta_filter_process_c(int32_t *qmi, int32_t *dx, int32_t *dl, int32_t *error, int32_t *in, int32_t shift, int32_t round) { + uint32_t *qm = qmi; + if (*error < 0) { qm[0] -= dx[0]; qm[1] -= dx[1]; qm[2] -= dx[2]; qm[3] -= dx[3]; qm[4] -= dx[4]; qm[5] -= dx[5]; qm[6] -= dx[6]; qm[7] -= dx[7]; |