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avcodec/scpr: Fix multiple runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'

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Fixes: 1422/clusterfuzz-testcase-minimized-5030993939398656

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-09 19:45:46 +02:00
parent 62c5949bec
commit f1a4dd5e48
1 changed files with 1 additions and 1 deletions
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2
libavcodec/scpr.c
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@ -161,7 +161,7 @@ static int get_freq(RangeCoder *rc, unsigned total_freq, unsigned *freq)
static int decode0(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigned freq, unsigned total_freq)
{
int t;
unsigned t;
if (total_freq == 0)
return AVERROR_INVALIDDATA;