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avcodec/aacdec_templat: Fix integer overflow in apply_ltp()

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Fixes: signed integer overflow: -1625276744 + -1041893960 cannot be represented in type 'int'
Fixes: 5948/clusterfuzz-testcase-minimized-5791479856365568

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 33fe17bdc88d51a8e0c87aa1e8011aaaf38a7a90)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-02-18 16:55:52 +01:00
parent 1a387f1ce6
commit b172815c3c
1 changed files with 1 additions and 1 deletions
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libavcodec/aacdec_template.c
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@ -2522,7 +2522,7 @@ static void apply_ltp(AACContext *ac, SingleChannelElement *sce)
for (sfb = 0; sfb < FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB); sfb++)
if (ltp->used[sfb])
for (i = offsets[sfb]; i < offsets[sfb + 1]; i++)
sce->coeffs[i] += predFreq[i];
sce->coeffs[i] += (UINTFLOAT)predFreq[i];
}
}