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avcodec/ffv1dec_template: Fix runtime error: signed integer overflow: 202 + 2147483615 cannot be represented in type 'int'

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Fixes: 1748/clusterfuzz-testcase-minimized-6690208340770816

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-23 03:24:49 +02:00
parent 2002436b0c
commit 9726e9f809
1 changed files with 1 additions and 1 deletions
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2
libavcodec/ffv1dec_template.c
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@ -98,7 +98,7 @@ static av_always_inline void RENAME(decode_line)(FFV1Context *s, int w,
if (sign)
diff = -diff;
sample[1][x] = av_mod_uintp2(RENAME(predict)(sample[1] + x, sample[0] + x) + diff, bits);
sample[1][x] = av_mod_uintp2(RENAME(predict)(sample[1] + x, sample[0] + x) + (SUINT)diff, bits);
}
s->run_index = run_index;
}