commit 673ad5e5003adfcef01b815b60ac349fc20846c5
Author: Michael Niedermayer <michael@niedermayer.cc>
Date:   Mon Aug 1 12:32:37 2016 +0200

    avcodec/vp9_parser: Check the input frame sizes for being consistent

    Suggested-by: BBB
    Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavcodec/vp9_parser.c b/libavcodec/vp9_parser.c
index 2e9235e..2411b86 100644
--- a/libavcodec/vp9_parser.c
+++ b/libavcodec/vp9_parser.c
@@ -89,6 +89,19 @@ static int parse(AVCodecParserContext *ctx,
     }

     if (s->n_frames > 0) {
+        int i;
+        int size_sum = 0;
+
+        for (i=0; i<s->n_frames ; i++)
+            size_sum += s->size[i];
+        if (size_sum != size) {
+            av_log(avctx, AV_LOG_ERROR, "Inconsistent input frame sizes %d %d\n",
+                   size_sum, size);
+            s->n_frames = 0;
+        }
+    }
+
+    if (s->n_frames > 0) {
         *out_data = data;
         *out_size = s->size[--s->n_frames];
         parse_frame(ctx, *out_data, *out_size);