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[IPV6] ADDRCONF: Fix possible inet6_ifaddr leakage with CONFIG_OPTIMISTIC_DAD.
The inet6_ifaddr for source address of RS is leaked if the address is not an optimistic address. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -627,7 +627,6 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
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struct sk_buff *skb;
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struct icmp6hdr *hdr;
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__u8 * opt;
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struct inet6_ifaddr *ifp;
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int send_sllao = dev->addr_len;
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int len;
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int err;
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@ -643,12 +642,12 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
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* supress the inclusion of the sllao.
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*/
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if (send_sllao) {
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ifp = ipv6_get_ifaddr(saddr, dev, 1);
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struct inet6_ifaddr *ifp = ipv6_get_ifaddr(saddr, dev, 1);
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if (ifp) {
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if (ifp->flags & IFA_F_OPTIMISTIC) {
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send_sllao=0;
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in6_ifa_put(ifp);
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send_sllao = 0;
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}
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in6_ifa_put(ifp);
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} else {
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send_sllao = 0;
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}
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