diff options
Diffstat (limited to 'net/ipv4/netfilter/ipt_MASQUERADE.c')
| -rw-r--r-- | net/ipv4/netfilter/ipt_MASQUERADE.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c index 9931152..9a30807 100644 --- a/net/ipv4/netfilter/ipt_MASQUERADE.c +++ b/net/ipv4/netfilter/ipt_MASQUERADE.c @@ -123,8 +123,16 @@ static int masq_inet_event(struct notifier_block *this, unsigned long event, void *ptr) { - struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev; - return masq_device_event(this, event, dev); + struct in_device *idev = ((struct in_ifaddr *)ptr)->ifa_dev; + /* The masq_dev_notifier will catch the case of the device going + * down. So if the inetdev is dead and being destroyed we have + * no work to do. Otherwise this is an individual address removal + * and we have to perform the flush. + */ + if (idev->dead) + return NOTIFY_DONE; + + return masq_device_event(this, event, idev->dev); } static struct notifier_block masq_dev_notifier = { |