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-rw-r--r--src/encoding/gob/decode.go2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/encoding/gob/decode.go b/src/encoding/gob/decode.go
index 8dece42e90..2da913fceb 100644
--- a/src/encoding/gob/decode.go
+++ b/src/encoding/gob/decode.go
@@ -1038,6 +1038,8 @@ func (dec *Decoder) compatibleType(fr reflect.Type, fw typeId, inProgress map[re
// typeString returns a human-readable description of the type identified by remoteId.
func (dec *Decoder) typeString(remoteId typeId) string {
+ typeLock.Lock()
+ defer typeLock.Unlock()
if t := idToType[remoteId]; t != nil {
// globally known type.
return t.string()