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avcodec/scpr: check for possible out of array access 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2018-04-02 08:59:20 +02:00
parent 02ae52db87
commit 22a878ecd1
1 changed files with 4 additions and 0 deletions
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4
libavcodec/scpr.c
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@ -211,6 +211,10 @@ static int decode_value(SCPRContext *s, unsigned *cnt, unsigned maxc, unsigned s
break;
c++;
}
if (c >= maxc)
return AVERROR_INVALIDDATA;
if ((ret = s->decode(gb, rc, cumfr, cnt_c, totfr)) < 0)
return ret;