@@ -2600,7 +2600,7 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,

     /* try relative path, we do not try the absolute because it can leak information about our

        system to an attacker */

     if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {

-        char filename[1024];

+        char filename[1025];

         const char *src_path;

         int i, l;

@@ -2630,6 +2630,8 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,

             av_strlcat(filename, ref->path + l + 1, sizeof(filename));

+            if (strlen(filename) + 1 == sizeof(filename))

+                return AVERROR(ENOENT);

             if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))

                 return 0;

         }