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wavpack: check packet size early

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato
2013-05-22 12:51:42 +02:00
parent 3f0b6d7a62
commit fd06291239
1 changed files with 3 additions and 0 deletions
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3
libavcodec/wavpack.c
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@@ -1203,6 +1203,9 @@ static int wavpack_decode_frame(AVCodecContext *avctx, void *data,
int frame_size, ret, frame_flags; int frame_size, ret, frame_flags;
int samplecount = 0; int samplecount = 0;
if (avpkt->size < 12 + s->multichannel * 4)
return AVERROR_INVALIDDATA;
s->block = 0; s->block = 0;
s->ch_offset = 0; s->ch_offset = 0;