diff --git a/testing/btest/opt/regress-lambda-ASAN.zeek b/testing/btest/opt/regress-lambda-ASAN.zeek
new file mode 100644
index 0000000000..e6979c5e57
--- /dev/null
+++ b/testing/btest/opt/regress-lambda-ASAN.zeek
@@ -0,0 +1,35 @@
+# @TEST-DOC: Regression test for lambda construction that used to violate memory safety
+# @TEST-REQUIRES: test "${ZEEK_USE_CPP}" != "1"
+#
+# It just needs to run without crashing. It generates a bunch of warnings but
+# those aren't of interest here.
+# @TEST-EXEC: zeek -b -O ZAM %INPUT
+
+function g()
+	{
+	}
+
+function gen0(f: function())
+	{
+	function[f]()
+		{
+		print f;
+		};
+	}
+
+function genN(c: count)
+	{
+	switch c
+		{
+		case 0: gen0(g); break;
+		case 1: gen0(g); break;
+		case 2: gen0(g); break;
+		case 3: gen0(g); break;
+		case 4: gen0(g); break;
+		}
+	}
+
+event zeek_init()
+	{
+	genN(3);
+	}