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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-05-07 22:26:22 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-01-16 00:35:12 +0100 |
| commit | 3d380ffde9af31152b1ddac47fa09521e0ae3d57 (patch) | |
| tree | 4738b9b8eea99c05f0dd8b5e9add184eef51c2d0 | |
| parent | 84b100396efb1d8ac65b2097ff1d9e532313d2d6 (diff) | |
| download | ffmpeg-3d380ffde9af31152b1ddac47fa09521e0ae3d57.tar.gz | |
avformat/vqf: check number of channels before use.
Fixes division by zero
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a527e692592b7eef69430cc866bb96231526316c)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/vqf.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/vqf.c b/libavformat/vqf.c index f1e6aafd98..8ba199c678 100644 --- a/libavformat/vqf.c +++ b/libavformat/vqf.c @@ -132,6 +132,11 @@ static int vqf_read_header(AVFormatContext *s) rate_flag = AV_RB32(comm_chunk + 8); avio_skip(s->pb, len-12); + if (st->codec->channels <= 0) { + av_log(s, AV_LOG_ERROR, "Invalid number of channels\n"); + return AVERROR_INVALIDDATA; + } + st->codec->bit_rate = read_bitrate*1000; break; case MKTAG('D','S','I','Z'): // size of compressed data |