vm: cache: all allocations are now zero-initialised

vm/cache.c

@@ -198,6 +198,8 @@ void *vm_cache_alloc(struct vm_cache *cache, enum vm_flags flags)
 	}
 
 	spin_unlock_irqrestore(&cache->c_lock, irq_flags);
+
+	memset(p, 0x0, cache->c_obj_size);
 	return p;
 }