From: Hangbin Liu <liuhangbin@xxxxxxxxx>
[ Upstream commit 5e1eeef69c0fef6249b794bda5d68f95a65d062f ]
When setting bond NS target, we use bond_is_ip6_target_ok() to check
if the address valid. The link local address was wrongly rejected in
bond_changelink(), as most time the user just set the ARP/NS target to
gateway, while the IPv6 gateway is always a link local address when user
set up interface via SLAAC.
So remove the link local addr check when setting bond NS target.
Fixes: 129e3c1bab24 ("bonding: add new option ns_ip6_target")
Reported-by: Li Liang <liali@xxxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
Reviewed-by: Jonathan Toppins <jtoppins@xxxxxxxxxx>
Acked-by: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/bonding/bond_netlink.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index f427fa1737c7..6f404f9c34e3 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -290,11 +290,6 @@ static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[],
addr6 = nla_get_in6_addr(attr);
- if (ipv6_addr_type(&addr6) & IPV6_ADDR_LINKLOCAL) {
- NL_SET_ERR_MSG(extack, "Invalid IPv6 addr6");
- return -EINVAL;
- }
-
bond_opt_initextra(&newval, &addr6, sizeof(addr6));
err = __bond_opt_set(bond, BOND_OPT_NS_TARGETS,
&newval);
--
2.35.1
