diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-17 09:50:59 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-25 21:23:47 -0700 |
| commit | 80d98a915c07e6de6c3a2c08dea843f441273081 (patch) | |
| tree | 32e2a76b76dd9d4f703eea779bf37d4dff461be7 /net | |
| parent | 27819a8a40b34b2db511181cfbfdf7f76281651d (diff) | |
Revert "8021q: fix a potential use-after-free"
This reverts commit 9829fe9806e22d7a822f4c947cc432c8d1774b54 which is
upstream commit 4a7df340ed1bac190c124c1601bfc10cde9fb4fb
It turns out this causes problems on the 3.0-stable release.
Reported-by: Thomas Voegtle <tv@lio96.de>
Acked-by: Cong Wang <amwang@redhat.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/8021q/vlan.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 1e93a917b3d..917ecb93ea2 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -108,6 +108,13 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) grp = rtnl_dereference(real_dev->vlgrp); BUG_ON(!grp); + /* Take it out of our own structures, but be sure to interlock with + * HW accelerating devices or SW vlan input packet processing if + * VLAN is not 0 (leave it there for 802.1p). + */ + if (vlan_id && (real_dev->features & NETIF_F_HW_VLAN_FILTER)) + ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id); + grp->nr_vlans--; if (vlan->flags & VLAN_FLAG_GVRP) @@ -132,13 +139,6 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) call_rcu(&grp->rcu, vlan_rcu_free); } - /* Take it out of our own structures, but be sure to interlock with - * HW accelerating devices or SW vlan input packet processing if - * VLAN is not 0 (leave it there for 802.1p). - */ - if (vlan_id && (real_dev->features & NETIF_F_HW_VLAN_FILTER)) - ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id); - /* Get rid of the vlan's reference to real_dev */ dev_put(real_dev); } |