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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-14 18:44:10 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-10 18:09:14 +0300 |
| commit | 8bcb5fbab5e30c3001c27a8309c94eb1f66b969f (patch) | |
| tree | a9b5f638bb915f5e6cbb738e618c22ab0061128c /libavcodec/truespeech.c | |
| parent | a0ae4b7df9156edfa66804e1cd012c4ecc91db4f (diff) | |
avcodec/truespeech: Fix an integer overflow in truespeech_synth()
Fixes: signed integer overflow: 2147483188 + 2048 cannot be represented in type 'int'
Fixes: 18741/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUESPEECH_fuzzer-5748950460268544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/truespeech.c')
| -rw-r--r-- | libavcodec/truespeech.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/truespeech.c b/libavcodec/truespeech.c index d7c2d535e2..3cdae8c556 100644 --- a/libavcodec/truespeech.c +++ b/libavcodec/truespeech.c @@ -255,7 +255,7 @@ static void truespeech_synth(TSContext *dec, int16_t *out, int quart) int sum = 0; for(k = 0; k < 8; k++) sum += ptr0[k] * (unsigned)ptr1[k]; - sum = out[i] + ((sum + 0x800) >> 12); + sum = out[i] + ((int)(sum + 0x800U) >> 12); out[i] = av_clip(sum, -0x7FFE, 0x7FFE); for(k = 7; k > 0; k--) ptr0[k] = ptr0[k - 1]; |