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| author | Laurent Aimar <fenrir@videolan.org> | 2011-09-21 20:46:29 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-22 00:42:28 +0200 |
| commit | 741ec30bd2385f794efa9fafa84d39a917f2574e (patch) | |
| tree | eee585f48aa141c70a50249708bf25abd2938025 | |
| parent | 00320ac0ddc5493302d274b2563ac7ee030c71e2 (diff) | |
| download | ffmpeg-741ec30bd2385f794efa9fafa84d39a917f2574e.tar.gz | |
Check output buffer size in nellymoser decoder.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/nellymoserdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/nellymoserdec.c b/libavcodec/nellymoserdec.c index a153dc0603..23fecbfa26 100644 --- a/libavcodec/nellymoserdec.c +++ b/libavcodec/nellymoserdec.c @@ -156,6 +156,7 @@ static int decode_tag(AVCodecContext * avctx, const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; NellyMoserDecodeContext *s = avctx->priv_data; + int data_max = *data_size; int blocks, i; int16_t* samples; *data_size = 0; @@ -178,6 +179,8 @@ static int decode_tag(AVCodecContext * avctx, */ for (i=0 ; i<blocks ; i++) { + if ((i + 1) * NELLY_SAMPLES * sizeof(int16_t) > data_max) + return i > 0 ? i * NELLY_BLOCK_LEN : -1; nelly_decode_block(s, &buf[i*NELLY_BLOCK_LEN], s->float_buf); s->fmt_conv.float_to_int16(&samples[i*NELLY_SAMPLES], s->float_buf, NELLY_SAMPLES); *data_size += NELLY_SAMPLES*sizeof(int16_t); |