diff --git a/Zend/zend_vm_execute.h b/Zend/zend_vm_execute.h
index f43fc024b9c31..2c4e5b9d69a9d 100644
--- a/Zend/zend_vm_execute.h
+++ b/Zend/zend_vm_execute.h
@@ -38110,9 +38110,18 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_FE_RESET_R_SPEC_CV_HANDLER(ZEN
 			} else {
 				properties = zobj->handlers->get_properties(zobj);
 			}
-			Z_FE_ITER_P(EX_VAR(opline->result.var)) = zend_hash_iterator_add(properties, 0);
-
-			ZEND_VM_NEXT_OPCODE_CHECK_EXCEPTION();
+			if (!properties) {
+				/* No properties to iterate over */
+				ZVAL_UNDEF(EX_VAR(opline->result.var));
+				Z_FE_ITER_P(EX_VAR(opline->result.var)) = (uint32_t)-1;
+				if (IS_CV != IS_TMP_VAR) {
+					GC_DELREF(zobj);
+				}
+				ZEND_VM_JMP(OP_JMP_ADDR(opline, opline->op2));
+			} else {
+				Z_FE_ITER_P(EX_VAR(opline->result.var)) = zend_hash_iterator_add(properties, 0);
+				ZEND_VM_NEXT_OPCODE_CHECK_EXCEPTION();
+			}
 		} else {
 			zend_bool is_empty = zend_fe_reset_iterator(array_ptr, 0 OPLINE_CC EXECUTE_DATA_CC);
 
diff --git a/ext/ffi/ffi.c b/ext/ffi/ffi.c
index 044bb61699560..76984c62ed829 100644
--- a/ext/ffi/ffi.c
+++ b/ext/ffi/ffi.c
@@ -4644,7 +4644,7 @@ static ZEND_COLD zend_function *zend_fake_get_method(zend_object **obj_ptr, zend
 
 static HashTable *zend_fake_get_properties(zend_object *obj) /* {{{ */
 {
-	return (HashTable*)&zend_empty_array;
+	return NULL;
 }
 /* }}} */
 
diff --git a/ext/ffi/tests/bug80186.phpt b/ext/ffi/tests/bug80186.phpt
new file mode 100644
index 0000000000000..18498e558aaf0
--- /dev/null
+++ b/ext/ffi/tests/bug80186.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Bug #80186 (Segfault when iterating over FFI object)
+--SKIPIF--
+<?php
+if (!extension_loaded('ffi')) die('skip ffi extension not available');
+?>
+--FILE--
+<?php
+$ffi = FFI::cdef('typedef int dummy;');
+foreach ($ffi as $_i) { }
+echo "no segfault\n";
+?>
+--EXPECT--
+no segfault