[vlc-commits] codec: flac: fix potential oob dereference

[Francois Cartegnie]

vlc | branch: master | Francois Cartegnie <fcvlcdev at free.fr> | Wed Mar  1 13:27:35 2017 +0100| [7081237e69dd22d644ecf6515344ee96a3019269] | committer: Francois Cartegnie

codec: flac: fix potential oob dereference

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=7081237e69dd22d644ecf6515344ee96a3019269
---

 modules/codec/flac.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/codec/flac.c b/modules/codec/flac.c
index cc96a53..5394d53 100644
--- a/modules/codec/flac.c
+++ b/modules/codec/flac.c
@@ -243,9 +243,12 @@ static void DecoderMetadataCallback( const FLAC__StreamDecoder *decoder,
     /* Setup the format */
     p_dec->fmt_out.audio.i_rate     = metadata->data.stream_info.sample_rate;
     p_dec->fmt_out.audio.i_channels = metadata->data.stream_info.channels;
-    p_dec->fmt_out.audio.i_physical_channels =
+    if( metadata->data.stream_info.channels < 9 )
+    {
+        p_dec->fmt_out.audio.i_physical_channels =
         p_dec->fmt_out.audio.i_original_channels =
             pi_channels_maps[metadata->data.stream_info.channels];
+    }
     if (!p_dec->fmt_out.audio.i_bitspersample)
         p_dec->fmt_out.audio.i_bitspersample =
             metadata->data.stream_info.bits_per_sample;