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Do not try to decode more data than output buffer may hold

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Originally committed as revision 10560 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2007-09-24 03:32:24 +00:00
parent 8b505fc689
commit 4783cf0d09
1 changed files with 5 additions and 0 deletions
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5
libavcodec/adx.c
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@ -328,6 +328,11 @@ static int adx_decode_frame(AVCodecContext *avctx,
rest -= hdrsize;
}
/* 18 bytes of data are expanded into 32*2 bytes of audio,
so guard against buffer overflows */
if(rest/18 > *data_size/64)
rest = (*data_size/64) * 18;
if (c->in_temp) {
int copysize = 18*avctx->channels - c->in_temp;
memcpy(c->dec_temp+c->in_temp,buf,copysize);