Merge commit '77cf2366'

* commit '77cf2366':
  asfdec: alloc enough space for storing name in asf_read_metadata_obj
Merged-by: NHendrik Leppkes <h.leppkes@gmail.com>

libavformat/asfdec_o.c

@@ -583,7 +583,7 @@ static int asf_read_metadata_obj(AVFormatContext *s, const GUIDParseTable *g)
             break;
         type     = avio_rl16(pb);
         val_len  = avio_rl32(pb);
-        name     = av_malloc(name_len);
+        name     = av_malloc(buflen);
         if (!name)
             return AVERROR(ENOMEM);
         avio_get_str16le(pb, name_len, name,