diff options
| -rw-r--r-- | net/ipv4/route.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 74c074f45758..e959327c0ba8 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -390,7 +390,13 @@ static inline int ip_rt_proc_init(void) static inline bool rt_is_expired(const struct rtable *rth) { - return rth->rt_genid != rt_genid_ipv4(dev_net(rth->dst.dev)); + bool res; + + rcu_read_lock(); + res = rth->rt_genid != rt_genid_ipv4(dev_net_rcu(rth->dst.dev)); + rcu_read_unlock(); + + return res; } void rt_cache_flush(struct net *net) |