tests: add ASAN repro for eval parse error in internal fake closure hook

morrisonlevi · morrisonlevi · commit 2242f59fa14b · 2026-02-04T14:31:00.000-07:00
Adds a PHPT that forces an eval() parse error inside an end-hook on an internal fake closure. Under ASAN this triggers a crash in ddtrace backtrace collection.
diff --git a/tests/ext/sandbox/install_hook/internal_fake_closure_forced_parse_error_asan.phpt b/tests/ext/sandbox/install_hook/internal_fake_closure_forced_parse_error_asan.phpt
@@ -0,0 +1,35 @@
+--TEST--
+ASAN repro: internal fake closure + forced eval parse error
+--SKIPIF--
+<?php
+if (PHP_VERSION_ID < 80000) {
+    die('skip: test requires PHP 8+');
+}
+?>
+--INI--
+datadog.trace.generate_root_span=0
+datadog.trace.auto_flush_enabled=0
+--ENV--
+DD_INSTRUMENTATION_TELEMETRY_ENABLED=0
+--FILE--
+<?php
+$closure = (new ReflectionFunction("intval"))->getClosure();
+
+\DDTrace\install_hook(
+    $closure,
+    function () {},
+    function () {
+        // Intentionally invalid PHP code to force a ParseError from eval().
+        eval('class Broken {');
+    },
+    \DDTrace\HOOK_INSTANCE
+);
+
+$callable = $closure;
+$callable(1);
+
+echo "ok\n";
+?>
+--EXPECT--
+ok
+
