bug79094.diff

diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c
index e1001062e5..005a877126 100644
--- a/Zend/zend_execute_API.c
+++ b/Zend/zend_execute_API.c
@@ -527,10 +527,18 @@ ZEND_API uint32_t zend_get_executed_lineno(void) /* {{{ */
 		ex = ex->prev_execute_data;
 	}
 	if (ex) {
-		if (EG(exception) && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
+		if (EG(exception)
+		 && ex->opline >= &EG(exception_op)[0]
+		 && ex->opline <= &EG(exception_op)[3]
+		 && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
 		    ex->opline->lineno == 0 && EG(opline_before_exception)) {
 			return EG(opline_before_exception)->lineno;
 		}
+		if (ex->opline < ex->func->op_array.opcodes
+		 || ex->opline > ex->func->op_array.opcodes + ex->func->op_array.last) {
+			/* EX(opline) may be uninitialized */
+			ex->opline = ex->func->op_array.opcodes;
+		}
 		return ex->opline->lineno;
 	} else {
 		return 0;