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avcodec/aacdec_fixed: Fix integer overflow in apply_independent_coupling_fixed()

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I was not able to reproduce this, this fix is based on just the fuzzer log.
Fixes: 4959/clusterfuzz-testcase-minimized-6035350934781952

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 197a4e8fee)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-03-31 21:19:19 +02:00
parent 1d3c141af4
commit ae2c159b87
1 changed files with 1 additions and 1 deletions
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2
libavcodec/aacdec_fixed.c
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@ -417,7 +417,7 @@ static void apply_independent_coupling_fixed(AACContext *ac,
int i, c, shift, round, tmp;
const int gain = cce->coup.gain[index][0];
const int *src = cce->ch[0].ret;
int *dest = target->ret;
unsigned int *dest = target->ret;
const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
c = cce_scale_fixed[gain & 7];