summaryrefslogtreecommitdiffstats
path: root/net/ipv4/route.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 987bf9ad..93bfd95 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2585,9 +2585,10 @@ static int ip_route_output_slow(struct net *net, struct rtable **rp,
goto out;
/* RACE: Check return value of inet_select_addr instead. */
- if (rcu_dereference(dev_out->ip_ptr) == NULL)
- goto out; /* Wrong error code */
-
+ if (!(dev_out->flags & IFF_UP) || !__in_dev_get_rcu(dev_out)) {
+ err = -ENETUNREACH;
+ goto out;
+ }
if (ipv4_is_local_multicast(oldflp->fl4_dst) ||
ipv4_is_lbcast(oldflp->fl4_dst)) {
if (!fl.fl4_src)
@@ -2648,8 +2649,12 @@ static int ip_route_output_slow(struct net *net, struct rtable **rp,
}
if (res.type == RTN_LOCAL) {
- if (!fl.fl4_src)
- fl.fl4_src = fl.fl4_dst;
+ if (!fl.fl4_src) {
+ if (res.fi->fib_prefsrc)
+ fl.fl4_src = res.fi->fib_prefsrc;
+ else
+ fl.fl4_src = fl.fl4_dst;
+ }
dev_out = net->loopback_dev;
fl.oif = dev_out->ifindex;
res.fi = NULL;
OpenPOWER on IntegriCloud