diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-07 20:42:54 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-04-23 21:29:01 +0200 |
| commit | aefc24beb24494b15d4b79f9f78f6013ac100db5 (patch) | |
| tree | d148733cdfdd2a5ccd63248e166f3354ed7be792 | |
| parent | 20acb6d1be69bc9ff29a49da984203a31a38d765 (diff) | |
| download | ffmpeg-aefc24beb24494b15d4b79f9f78f6013ac100db5.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>
| -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 f60fcfcd9a..a4e899b4de 100644 --- a/libavcodec/alac.c +++ b/libavcodec/alac.c @@ -224,7 +224,7 @@ 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); } } } |