diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index d377ea0609255c9a5cb7adec0a4f95ed0e250141..4201d68b60f217f85d15da09b76402d31ec22ed2 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1365,6 +1365,9 @@ __acquires(bitmap->lock)
 	sector_t csize;
 	int err;
 
+	if (page >= bitmap->pages)
+		return NULL;
+
 	err = md_bitmap_checkpage(bitmap, page, create, 0);
 
 	if (bitmap->bp[page].hijacked ||