[lkml]   [2007]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[patch 069/101] Dont add anycast reference to device multiple times
From: Michal Wrobel <>

[IPV6]: anycast refcnt fix

This patch fixes a bug in Linux IPv6 stack which caused anycast address
to be added to a device prior DAD has been completed. This led to
incorrect reference count which resulted in infinite wait for
unregister_netdevice completion on interface removal.

Signed-off-by: Michal Wrobel <>
Signed-off-by: David S. Miller <>
Signed-off-by: Greg Kroah-Hartman <>

net/ipv6/addrconf.c | 2 ++
1 file changed, 2 insertions(+)

--- linux-
+++ linux-
@@ -469,6 +469,8 @@ static void dev_forward_change(struct in
ipv6_dev_mc_dec(dev, &addr);
for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
+ if (ifa->flags&IFA_F_TENTATIVE)
+ continue;
if (idev->cnf.forwarding)
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-03-07 18:23    [W:0.197 / U:0.028 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site