diff options
| author | Hong Zhiguo <zhiguohong@tencent.com> | 2013-09-14 18:42:27 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-09-16 06:03:33 +0400 |
| commit | 1fb1754a8c70d69ab480763c423e0a74369c4a67 (patch) | |
| tree | 84ccb1544806928d3bfa10beff69027b3153f178 /net/bridge/br_netlink.c | |
| parent | 3274f687520fd472b80ac386aa0aa24c657ae330 (diff) | |
| download | linux-1fb1754a8c70d69ab480763c423e0a74369c4a67.tar.xz | |
bridge: use br_port_get_rtnl within rtnl lock
current br_port_get_rcu is problematic in bridging path
(NULL deref). Change these calls in netlink path first.
Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_netlink.c')
| -rw-r--r-- | net/bridge/br_netlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index b9259efa636e..e74ddc1c29a8 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -207,7 +207,7 @@ int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask) { int err = 0; - struct net_bridge_port *port = br_port_get_rcu(dev); + struct net_bridge_port *port = br_port_get_rtnl(dev); /* not a bridge port and */ if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN)) @@ -451,7 +451,7 @@ static size_t br_get_link_af_size(const struct net_device *dev) struct net_port_vlans *pv; if (br_port_exists(dev)) - pv = nbp_get_vlan_info(br_port_get_rcu(dev)); + pv = nbp_get_vlan_info(br_port_get_rtnl(dev)); else if (dev->priv_flags & IFF_EBRIDGE) pv = br_get_vlan_info((struct net_bridge *)netdev_priv(dev)); else |