diff --git a/mm/slob.c b/mm/slob.c
index 41d32c3..b3a4558 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -334,6 +334,8 @@
 		BUG_ON(!b);
 		spin_unlock_irqrestore(&slob_lock, flags);
 	}
+	if (unlikely((gfp & __GFP_ZERO) && b))
+		memset(b, 0, size);
 	return b;
 }