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Diffstat (limited to 'net/ipv6/ip6_gre.c')
-rw-r--r--net/ipv6/ip6_gre.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index f8a103bdbd60..69727bc168cb 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -335,11 +335,13 @@ static struct ip6_tnl *ip6gre_tunnel_locate(struct net *net,
if (t || !create)
return t;
- if (parms->name[0])
+ if (parms->name[0]) {
+ if (!dev_valid_name(parms->name))
+ return NULL;
strlcpy(name, parms->name, IFNAMSIZ);
- else
+ } else {
strcpy(name, "ip6gre%d");
-
+ }
dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN,
ip6gre_tunnel_setup);
if (!dev)