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avcodec/aacps: Fix undefined behavior 

Fixes: 1337/clusterfuzz-testcase-minimized-5212314171080704

Fixes the existence of a potentially invalid pointer intermediate

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 527f89e059)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-05 13:16:07 +02:00
parent 0c95ae971e
commit 4954a78d33
1 changed files with 1 additions and 1 deletions
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libavcodec/aacps.c
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@ -900,7 +900,7 @@ static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2
h_step[1][3] = (H22[1][e+1][b] - h[1][3]) * width;
}
ps->dsp.stereo_interpolate[!PS_BASELINE && ps->enable_ipdopd](
l[k] + start + 1, r[k] + start + 1,
l[k] + 1 + start, r[k] + 1 + start,
h, h_step, stop - start);
}
}