1 files changed, 9 insertions, 0 deletions
diff --git a/third_party/rust/serde_json/tests/regression/issue953.rs b/third_party/rust/serde_json/tests/regression/issue953.rs
new file mode 100644
index 0000000000..771aa5287c
--- /dev/null
+++ b/third_party/rust/serde_json/tests/regression/issue953.rs
@@ -0,0 +1,9 @@
+use serde_json::Value;
+
+#[test]
+fn test() {
+    let x1 = serde_json::from_str::<Value>("18446744073709551615.");
+    assert!(x1.is_err());
+    let x2 = serde_json::from_str::<Value>("18446744073709551616.");
+    assert!(x2.is_err());
+}