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| author | Laurent Aimar <fenrir@videolan.org> | 2011-09-25 13:43:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-25 23:01:44 +0200 |
| commit | 508e47a5751b063e5b3d1d6aceda8a19ad8b1d37 (patch) | |
| tree | 3828133c1db61357f9be347f2bdc7a36b6bbf388 | |
| parent | 7ec5ea437fc88ca58d7ac3cd12dfa2f0fbd4011f (diff) | |
| download | ffmpeg-508e47a5751b063e5b3d1d6aceda8a19ad8b1d37.tar.gz | |
Check for out of bound bands limit in mpc v8 decoder.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/mpc8.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/mpc8.c b/libavcodec/mpc8.c index cae7244ed5..436d7baa84 100644 --- a/libavcodec/mpc8.c +++ b/libavcodec/mpc8.c @@ -127,6 +127,8 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx) skip_bits(&gb, 3);//sample rate c->maxbands = get_bits(&gb, 5) + 1; + if (c->maxbands >= BANDS) + return AVERROR_INVALIDDATA; channels = get_bits(&gb, 4) + 1; if (channels > 2) { av_log_missing_feature(avctx, "Multichannel MPC SV8", 1); @@ -260,6 +262,8 @@ static int mpc8_decode_frame(AVCodecContext * avctx, maxband = c->last_max_band + get_vlc2(gb, band_vlc.table, MPC8_BANDS_BITS, 2); if(maxband > 32) maxband -= 33; } + if(maxband > c->maxbands) + return AVERROR_INVALIDDATA; c->last_max_band = maxband; /* read subband indexes */ |