p2p/enode: remove data race in sliceIter (ethereum#20421)

makerdao · Dec 20, 2019 · 1ffa09a · 1ffa09a
1 parent 24ebeb4
commit 1ffa09a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/p2p/enode/iter.go b/p2p/enode/iter.go
@@ -88,6 +88,8 @@ func (it *sliceIter) Next() bool {
 }
 
 func (it *sliceIter) Node() *Node {
+	it.mu.Lock()
+	defer it.mu.Unlock()
 	if len(it.nodes) == 0 {
 		return nil
 	}