From 50fb0fafd1546f2dc6bf931f3a44f63704ce78ac Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Thu, 6 Mar 2014 17:51:57 +0100 Subject: [PATCH] ipv6: don't set DST_NOCOUNT for remotely added routes [ Upstream commit c88507fbad8055297c1d1e21e599f46960cbee39 ] DST_NOCOUNT should only be used if an authorized user adds routes locally. In case of routes which are added on behalf of router advertisments this flag must not get used as it allows an unlimited number of routes getting added remotely. Signed-off-by: Sabrina Dubroca Acked-by: Hannes Frederic Sowa Signed-off-by: David S. Miller Signed-off-by: Jiri Slaby --- net/ipv6/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 0accb1321dd61..77f81beabbd34 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1500,7 +1500,7 @@ int ip6_route_add(struct fib6_config *cfg) if (!table) goto out; - rt = ip6_dst_alloc(net, NULL, DST_NOCOUNT, table); + rt = ip6_dst_alloc(net, NULL, (cfg->fc_flags & RTF_ADDRCONF) ? 0 : DST_NOCOUNT, table); if (!rt) { err = -ENOMEM; -- 2.47.3