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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-08-05 17:04:59 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-08-05 17:59:12 +0200 |
| commit | c30f53e4d8156f1a1e2b15b3d5504c4a67a88d5f (patch) | |
| tree | 65bf3ff41fe4249c13d16b1390bfbb881ce81b74 | |
| parent | bc3b4220296e24e2cdd1213208a470853fcb76c3 (diff) | |
| download | ffmpeg-c30f53e4d8156f1a1e2b15b3d5504c4a67a88d5f.tar.gz | |
matroskadec: prevent potential integer overflow
Iam not sure this can happen, but its safer we check.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/matroskadec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 0f1808773b..500048f761 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1580,7 +1580,7 @@ static int matroska_read_header(AVFormatContext *s) && (track->codec_priv.data != NULL)) { fourcc = AV_RL32(track->codec_priv.data); codec_id = ff_codec_get_id(ff_codec_movvideo_tags, fourcc); - } else if (codec_id == CODEC_ID_ALAC && track->codec_priv.size) { + } else if (codec_id == CODEC_ID_ALAC && track->codec_priv.size && track->codec_priv.size < INT_MAX-12) { /* Only ALAC's magic cookie is stored in Matroska's track headers. Create the "atom size", "tag", and "tag version" fields the decoder expects manually. */ |