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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-29 22:00:58 +02:00

avcodec/wavpack: Fix integer overflow

Fixes: runtime error: signed integer overflow: 227511904 + 1964113935 cannot be represented in type 'int'
Fixes: 2331/clusterfuzz-testcase-minimized-6182185830711296

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 24e95f9d4de012f51fdd5767dff0b3142e13ec3a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-23 01:58:48 +02:00
parent 7fadd9625f
commit fe74c2364e

View File

@ -219,7 +219,7 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb,
INC_MED(1);
DEC_MED(2);
} else {
base = GET_MED(0) + GET_MED(1) + GET_MED(2) * (t - 2);
base = GET_MED(0) + GET_MED(1) + GET_MED(2) * (t - 2U);
add = GET_MED(2) - 1;
INC_MED(0);
INC_MED(1);