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avcodec/aacps: Fix undefined behavior

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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 527f89e05922e840083ac6d49eeb838b1e350dd4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-05 13:16:07 +02:00
parent 53567e573b
commit aa941e9aa9
1 changed files with 1 additions and 1 deletions
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libavcodec/aacps.c
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@ -975,7 +975,7 @@ static void stereo_processing(PSContext *ps, INTFLOAT (*l)[32][2], INTFLOAT (*r)
h_step[1][3] = AAC_MSUB31_V3(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);
}
}