network: fix ABRT

Fixes #14811 and oss-fuzz#20548.
2020-02-07 17:18:58 +09:00
parent e2c4070edf
commit f0c1ad308d
2 changed files with 7 additions and 1 deletions
@@ -999,7 +999,13 @@ int config_parse_address_generation_type(
        else {
                token->address_generation_type = IPV6_TOKEN_ADDRESS_GENERATION_STATIC;
                p = rvalue;
-       }
+        }
+
+        if (isempty(p)) {
+                log_syntax(unit, LOG_ERR, filename, line, 0,
+                           "Invalid IPv6Token= , ignoring assignment: %s", rvalue);
+                return 0;
+        }

        r = in_addr_from_string(AF_INET6, p, &buffer);
        if (r < 0) {