diff options
| -rw-r--r-- | net/ipv6/addrconf.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 2db2116d3e6b..23cec53b568a 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3448,6 +3448,12 @@ static void addrconf_type_change(struct net_device *dev, unsigned long event) ipv6_mc_unmap(idev); } +static bool addr_is_local(const struct in6_addr *addr) +{ + return ipv6_addr_type(addr) & + (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); +} + static int addrconf_ifdown(struct net_device *dev, int how) { struct net *net = dev_net(dev); @@ -3505,7 +3511,8 @@ restart: * address is retained on a down event */ if (!keep_addr || - !(ifa->flags & IFA_F_PERMANENT)) { + !(ifa->flags & IFA_F_PERMANENT) || + addr_is_local(&ifa->addr)) { hlist_del_init_rcu(&ifa->addr_lst); goto restart; } @@ -3554,7 +3561,8 @@ restart: write_unlock_bh(&idev->lock); spin_lock_bh(&ifa->lock); - if (keep_addr && (ifa->flags & IFA_F_PERMANENT)) { + if (keep_addr && (ifa->flags & IFA_F_PERMANENT) && + !addr_is_local(&ifa->addr)) { /* set state to skip the notifier below */ state = INET6_IFADDR_STATE_DEAD; ifa->state = 0; |