diff --git a/exec.c b/exec.c
index f46e596818..c4f9036184 100644
--- a/exec.c
+++ b/exec.c
@@ -1773,6 +1773,10 @@ static void reclaim_ramblock(RAMBlock *block)
 
 void qemu_ram_free(RAMBlock *block)
 {
+    if (!block) {
+        return;
+    }
+
     qemu_mutex_lock_ramlist();
     QLIST_REMOVE_RCU(block, next);
     ram_list.mru_block = NULL;