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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-07 20:42:54 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-05-19 17:17:35 +0200 |
| commit | 7e0c15c3ec6fcaa5794d158fcc51b1478aefdeab (patch) | |
| tree | a7129c24a67812c82b046c542366faf71c383184 /libavcodec | |
| parent | b46b2e52b8f9f9bf09f940bfc8610e7b81c20f98 (diff) | |
| download | ffmpeg-7e0c15c3ec6fcaa5794d158fcc51b1478aefdeab.tar.gz | |
avcodec/alac: Fix integer overflow in LPC coefficient adaption
Fixes: signed integer overflow: 267693597 * 10 cannot be represented in type 'int'
Fixes: 19237/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5755407700328448
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 6a865cec5e7584ef476f394fc55c1fc91cec1a14)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/alac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/alac.c b/libavcodec/alac.c index d08c946249..ea5ab182f9 100644 --- a/libavcodec/alac.c +++ b/libavcodec/alac.c @@ -228,7 +228,7 @@ static void lpc_prediction(int32_t *error_buffer, uint32_t *buffer_out, sign = sign_only(val) * error_sign; lpc_coefs[j] -= sign; val *= (unsigned)sign; - error_val -= (val >> lpc_quant) * (j + 1); + error_val -= (val >> lpc_quant) * (j + 1U); } } } |