diff options
| -rw-r--r-- | net/ipv6/route.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 6361ad2fcf77..a1301334da48 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -5055,6 +5055,9 @@ static int fib6_nh_mtu_change(struct fib6_nh *nh, void *_arg) struct inet6_dev *idev = __in6_dev_get(arg->dev); u32 mtu = f6i->fib6_pmtu; + if (!idev) + return 0; + if (mtu >= arg->mtu || (mtu < arg->mtu && mtu == idev->cnf.mtu6)) fib6_metric_set(f6i, RTAX_MTU, arg->mtu); |