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-rw-r--r--net/ipv6/addrconf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 39d861d00377..cb493e15959c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5718,6 +5718,9 @@ static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla)
struct nlattr *tb[IFLA_INET6_MAX + 1];
int err;
+ if (!idev)
+ return -EAFNOSUPPORT;
+
if (nla_parse_nested_deprecated(tb, IFLA_INET6_MAX, nla, NULL, NULL) < 0)
BUG();