Fixed bug #75396

Do not run finally blocks in generators on unclean shutdown (e.g.
caused by exit). This is consistent with how finally blocks outside
of generators behave.

Author: nikic

NEWS

@@ -7,6 +7,8 @@ PHP                                                                        NEWS
   . Fixed bug #75786 (segfault when using spread operator on generator passed
     by reference). (Nikita)
   . Fixed bug #75799 (arg of get_defined_functions is optional). (carusogabriel)
+  . Fixed bug #75396 (Exit inside generator finally results in fatal error).
+    (Nikita)
 
 - Opcache:
   . Fixed bug #75720 (File cache not populated after SHM runs full). (Dmitry)

Zend/tests/generators/bug75396.phpt

@@ -0,0 +1,22 @@
+--TEST--
+Bug #75396: Exit inside generator finally results in fatal error
+--FILE--
+<?php
+
+$gen = (function () {
+    yield 42;
+
+    try {
+        echo "Try\n";
+        exit("Exit\n");
+    } finally {
+        echo "Finally\n";
+    }
+})();
+
+$gen->send("x");
+
+?>
+--EXPECT--
+Try
+Exit

Zend/zend_generators.c

@@ -185,7 +185,8 @@ static void zend_generator_dtor_storage(zend_object *object) /* {{{ */
 		generator->node.parent = NULL;
 	}
 
-	if (EXPECTED(!ex) || EXPECTED(!(ex->func->op_array.fn_flags & ZEND_ACC_HAS_FINALLY_BLOCK))) {
+	if (EXPECTED(!ex) || EXPECTED(!(ex->func->op_array.fn_flags & ZEND_ACC_HAS_FINALLY_BLOCK))
+			|| CG(unclean_shutdown)) {
 		return;
 	}