chiark / gitweb /
fix possible endless loop for GOTO to non-existent LABEL
[elogind.git] / udev / udev-rules.c
index fac418e..b8b7e52 100644 (file)
@@ -1610,6 +1610,7 @@ static int parse_file(struct udev_rules *rules, const char *filename, unsigned s
                                if (strcmp(label, &rules->buf[rules->tokens[j].rule.label_off]) != 0)
                                        continue;
                                rules->tokens[i].key.rule_goto = j;
+                               break;
                        }
                        if (rules->tokens[i].key.rule_goto == 0)
                                err(rules->udev, "GOTO '%s' has no matching label in: '%s'\n", label, filename);
@@ -2504,6 +2505,8 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event
                                break;
                        }
                case TK_A_GOTO:
+                       if (cur->key.rule_goto == 0)
+                               break;
                        cur = &rules->tokens[cur->key.rule_goto];
                        continue;
                case TK_A_LAST_RULE: