[NETNS]: Pass correct namespace in fib_validate_source.

Correct network namespace is available inside fib_validate_source. It
can be obtained from the device passed in. The device is not NULL as
in_device is obtained from it just above.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index e056154076b3..6761639dd0e9 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -228,6 +228,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
         struct fib_result res;
         int no_addr, rpf;
         int ret;
+        struct net *net;
 
         no_addr = rpf = 0;
         rcu_read_lock();
@@ -241,7 +242,8 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
         if (in_dev == NULL)
                 goto e_inval;
 
-        if (fib_lookup(&init_net, &fl, &res))
+        net = dev->nd_net;
+        if (fib_lookup(net, &fl, &res))
                 goto last_resort;
         if (res.type != RTN_UNICAST)
                 goto e_inval_res;
@@ -265,7 +267,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
         fl.oif = dev->ifindex;
 
         ret = 0;
-        if (fib_lookup(&init_net, &fl, &res) == 0) {
+        if (fib_lookup(net, &fl, &res) == 0) {
                 if (res.type == RTN_UNICAST) {
                         *spec_dst = FIB_RES_PREFSRC(res);
                         ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;