1 files changed, 14 insertions, 2 deletions
diff --git a/vendor/go.mongodb.org/mongo-driver/bson/bsoncodec/default_value_decoders.go b/vendor/go.mongodb.org/mongo-driver/bson/bsoncodec/default_value_decoders.go
index 7e08aab35..8702d6d39 100644
--- a/vendor/go.mongodb.org/mongo-driver/bson/bsoncodec/default_value_decoders.go
+++ b/vendor/go.mongodb.org/mongo-driver/bson/bsoncodec/default_value_decoders.go
@@ -330,7 +330,7 @@ func (DefaultValueDecoders) intDecodeType(dc DecodeContext, vr bsonrw.ValueReade
 	case reflect.Int64:
 		return reflect.ValueOf(i64), nil
 	case reflect.Int:
-		if int64(int(i64)) != i64 { // Can we fit this inside of an int
+		if i64 > math.MaxInt { // Can we fit this inside of an int
 			return emptyValue, fmt.Errorf("%d overflows int", i64)
 		}
 
@@ -434,7 +434,7 @@ func (dvd DefaultValueDecoders) UintDecodeValue(dc DecodeContext, vr bsonrw.Valu
 			return fmt.Errorf("%d overflows uint64", i64)
 		}
 	case reflect.Uint:
-		if i64 < 0 || int64(uint(i64)) != i64 { // Can we fit this inside of an uint
+		if i64 < 0 || uint64(i64) > uint64(math.MaxUint) { // Can we fit this inside of an uint
 			return fmt.Errorf("%d overflows uint", i64)
 		}
 	default:
@@ -1521,6 +1521,18 @@ func (dvd DefaultValueDecoders) ValueUnmarshalerDecodeValue(_ DecodeContext, vr
 		return ValueDecoderError{Name: "ValueUnmarshalerDecodeValue", Types: []reflect.Type{tValueUnmarshaler}, Received: val}
 	}
 
+	// If BSON value is null and the go value is a pointer, then don't call
+	// UnmarshalBSONValue. Even if the Go pointer is already initialized (i.e.,
+	// non-nil), encountering null in BSON will result in the pointer being
+	// directly set to nil here. Since the pointer is being replaced with nil,
+	// there is no opportunity (or reason) for the custom UnmarshalBSONValue logic
+	// to be called.
+	if vr.Type() == bsontype.Null && val.Kind() == reflect.Ptr {
+		val.Set(reflect.Zero(val.Type()))
+
+		return vr.ReadNull()
+	}
+
 	if val.Kind() == reflect.Ptr && val.IsNil() {
 		if !val.CanSet() {
 			return ValueDecoderError{Name: "ValueUnmarshalerDecodeValue", Types: []reflect.Type{tValueUnmarshaler}, Received: val}