diff options
| author | Martin Storsjö <martin@martin.st> | 2013-09-19 16:02:29 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2013-09-19 22:45:40 +0300 |
| commit | 82e266c6d3fbf3cc74e515b883e66543381a0f2c (patch) | |
| tree | 259f729db2415658a8c419987bbb5b24da1bc7cb /libavformat/segafilm.c | |
| parent | 601c2015bc16f0b281160292a6a760cbbbb0eacb (diff) | |
| download | ffmpeg-82e266c6d3fbf3cc74e515b883e66543381a0f2c.tar.gz | |
segafilm: Validate the number of audio channels
This avoids divisions by zero later.
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavformat/segafilm.c')
| -rw-r--r-- | libavformat/segafilm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c index adf24759c6..5643f33cc8 100644 --- a/libavformat/segafilm.c +++ b/libavformat/segafilm.c @@ -111,6 +111,11 @@ static int film_read_header(AVFormatContext *s) return AVERROR(EIO); film->audio_samplerate = AV_RB16(&scratch[24]); film->audio_channels = scratch[21]; + if (!film->audio_channels || film->audio_channels > 2) { + av_log(s, AV_LOG_ERROR, + "Invalid number of channels: %d\n", film->audio_channels); + return AVERROR_INVALIDDATA; + } film->audio_bits = scratch[22]; if (scratch[23] == 2) film->audio_type = AV_CODEC_ID_ADPCM_ADX; |