From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 13 May 2021 07:47:42 +0000 (+0900)
Subject: network: route: check validity of interface name in MultiPathRoute=
X-Git-Tag: v249-rc1~198^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=70a2d9dd3193e88ec89363826161ae04131baf6a;p=thirdparty%2Fsystemd.git

network: route: check validity of interface name in MultiPathRoute=
---

diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c
index f613da99226..e588f3a2151 100644
--- a/src/network/networkd-route.c
+++ b/src/network/networkd-route.c
@@ -2757,6 +2757,12 @@ int config_parse_multipath_route(
                 if (r > 0)
                         m->ifindex = r;
                 else {
+                        if (!ifname_valid_full(dev, IFNAME_VALID_ALTERNATIVE)) {
+                                log_syntax(unit, LOG_WARNING, filename, line, 0,
+                                           "Invalid interface name '%s' in %s=, ignoring: %s", dev, lvalue, rvalue);
+                                return 0;
+                        }
+
                         m->ifname = strdup(dev);
                         if (!m->ifname)
                                 return log_oom();