diff --git a/libavformat/vqf.c b/libavformat/vqf.c
index 409c014a92..68ba5c0db0 100644
--- a/libavformat/vqf.c
+++ b/libavformat/vqf.c
@@ -62,7 +62,8 @@ static void add_metadata(AVFormatContext *s, uint32_t tag,
     buf = av_malloc(len+1);
     if (!buf)
         return;
-    avio_read(s->pb, buf, len);
+    if (len != avio_read(s->pb, buf, len))
+        return;
     buf[len] = 0;
     AV_WL32(key, tag);
     av_dict_set(&s->metadata, key, buf, AV_DICT_DONT_STRDUP_VAL);