Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 58e354c0 authored by David Ahern's avatar David Ahern Committed by David S. Miller
Browse files

net/ipv6: Handle reject routes with onlink flag 



Verification of nexthops with onlink flag need to handle unreachable
routes. The lookup is only intended to validate the gateway address
is not a local address and if the gateway resolves the egress device
must match the given device. Hence, hitting any default reject route
is ok.

Fixes: fc1e64e1 ("net/ipv6: Add support for onlink flag")
Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c861ef83

net/ipv6/route.c

+2 −1
Original line number Diff line number Diff line
@@ -2488,7 +2488,8 @@ static int ip6_route_check_nh_onlink(struct net *net, 
	err = 0;

	grt = ip6_nh_lookup_table(net, cfg, gw_addr, tbid, 0);

	if (grt) {

		if (grt->rt6i_flags & flags || dev != grt->dst.dev) {

		if (!grt->dst.error &&

		    (grt->rt6i_flags & flags || dev != grt->dst.dev)) {

			NL_SET_ERR_MSG(extack, "Nexthop has invalid gateway");

			err = -EINVAL;

		}