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authorWANG Cong <xiyou.wangcong@gmail.com>2017-05-03 22:07:31 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-05-14 13:32:58 +0200
commit5117f03fd6e20d552daebe5f509a897b1df700a3 (patch)
tree34cf8d4a6eb0aed0b835d7e17a7c974f2d27c79e /include/net
parent545f144825390ab93fef326cfa99ab246c02955c (diff)
ipv6: initialize route null entry in addrconf_init()
[ Upstream commit 2f460933f58eee3393aba64f0f6d14acb08d1724 ] Andrey reported a crash on init_net.ipv6.ip6_null_entry->rt6i_idev since it is always NULL. This is clearly wrong, we have code to initialize it to loopback_dev, unfortunately the order is still not correct. loopback_dev is registered very early during boot, we lose a chance to re-initialize it in notifier. addrconf_init() is called after ip6_route_init(), which means we have no chance to correct it. Fix it by moving this initialization explicitly after ipv6_add_dev(init_net.loopback_dev) in addrconf_init(). Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/ip6_route.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 295d291269e2..6275d651f76e 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -77,6 +77,7 @@ static inline struct dst_entry *ip6_route_output(struct net *net,
struct dst_entry *ip6_route_lookup(struct net *net, struct flowi6 *fl6,
int flags);
+void ip6_route_init_special_entries(void);
int ip6_route_init(void);
void ip6_route_cleanup(void);