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Merge commit '59480abce7e4238e22b3a4a904a9fe6abf4e4188' 

* commit '59480abce7e4238e22b3a4a904a9fe6abf4e4188':
  alac: Do bounds checking of lpc_order read from the bitstream

See: fd4f4923cc
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-29 23:03:58 +02:00
parent 17049bff64 59480abce7
commit 9e58d46edf
1 changed files with 3 additions and 0 deletions
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libavcodec/alac.c
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@ -320,6 +320,9 @@ static int decode_element(AVCodecContext *avctx, AVFrame *frame, int ch_index,
rice_history_mult[ch] = get_bits(&alac->gb, 3);
lpc_order[ch] = get_bits(&alac->gb, 5);
if (lpc_order[ch] >= alac->max_samples_per_frame)
return AVERROR_INVALIDDATA;
/* read the predictor table */
for (i = lpc_order[ch] - 1; i >= 0; i--)
lpc_coefs[ch][i] = get_sbits(&alac->gb, 16);