[FFmpeg-cvslog] avcodec/vp3: Check init_get_bits8() for failure

[Michael Niedermayer]

ffmpeg | branch: release/2.7 | Michael Niedermayer <michael at niedermayer.cc> | Fri Sep  4 01:13:05 2015 +0200| [dceec28eac8a8a8190c98d8ba73ed3e6989cf762] | committer: Michael Niedermayer

avcodec/vp3: Check init_get_bits8() for failure

Fixes CID1322316

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit cbd3cd8eb2de2280d83da5ee875c35581b46a3a3)

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dceec28eac8a8a8190c98d8ba73ed3e6989cf762
---

 libavcodec/vp3.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 005f043..2c8a8fe 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2473,6 +2473,7 @@ static av_cold int theora_decode_init(AVCodecContext *avctx)
     const uint8_t *header_start[3];
     int header_len[3];
     int i;
+    int ret;
 
     avctx->pix_fmt = AV_PIX_FMT_YUV420P;
 
@@ -2492,7 +2493,9 @@ static av_cold int theora_decode_init(AVCodecContext *avctx)
     for (i = 0; i < 3; i++) {
         if (header_len[i] <= 0)
             continue;
-        init_get_bits8(&gb, header_start[i], header_len[i]);
+        ret = init_get_bits8(&gb, header_start[i], header_len[i]);
+        if (ret < 0)
+            return ret;
 
         ptype = get_bits(&gb, 8);