path: root/net
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authorDavid S. Miller <>2011-12-13 17:35:06 -0500
committerRohan Somvanshi <>2012-01-11 10:31:31 -0800
commit8192849c42716b15a8ee8ebececf4e7c585ca5c7 (patch)
tree23db606237e5c8290d88fba57a05193665beff06 /net
parent0f98ee27faf8a6ec88bac804b19e79854ea0e0b8 (diff)
ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow().
[ Upstream commit bb3c36863e8001fc21a88bebfdead4da4c23e848 ] After commit 8e2ec639173f325977818c45011ee176ef2b11f6 ("ipv6: don't use inetpeer to store metrics for routes.") the test in rt6_alloc_cow() for setting the ANYCAST flag is now wrong. 'rt' will always now have a plen of 128, because it is set explicitly to 128 by ip6_rt_copy. So to restore the semantics of the test, check the destination prefix length of 'ort'. Signed-off-by: David S. Miller <> Signed-off-by: Greg Kroah-Hartman <> Change-Id: Iea67f1fb5976ad72d27e45dff42017894f30b563 Reviewed-on: http://git-master/r/74223 Reviewed-by: Varun Wadekar <> Tested-by: Varun Wadekar <>
Diffstat (limited to 'net')
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 57b82dc1ae91..f02fe523bd3a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -725,7 +725,7 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
int attempts = !in_softirq();
if (!(rt->rt6i_flags&RTF_GATEWAY)) {
- if (rt->rt6i_dst.plen != 128 &&
+ if (ort->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
ipv6_addr_copy(&rt->rt6i_gateway, daddr);