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dcadec: fix global array overread.

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-16 16:27:08 +02:00
parent bdeb54e176
commit 8e77c3846e
1 changed files with 1 additions and 1 deletions
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2
libavcodec/dca.c
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@ -805,7 +805,7 @@ static int dca_subframe_header(DCAContext *s, int base_channel, int block_index)
"Invalid channel mode %d\n", am);
return AVERROR_INVALIDDATA;
}
for (j = base_channel; j < s->prim_channels; j++) {
for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) {
s->downmix_coef[j][0] = dca_default_coeffs[am][j][0];
s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];
}