[PATCH net-next v3 2/6] net: bridge: Set strict_start_type for br_policy
From: Johannes Nixdorf <hidden>
Date: 2023-09-05 16:57:37
Also in:
bridge, linux-kselftest, lkml
Subsystem:
ethernet bridge, networking [general], the rest · Maintainers:
Nikolay Aleksandrov, Ido Schimmel, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Set any new attributes added to br_policy to be parsed strictly, to prevent userspace from passing garbage. Signed-off-by: Johannes Nixdorf <redacted> --- net/bridge/br_netlink.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 05c5863d2e20..1dc4e1bce740 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c@@ -1217,6 +1217,7 @@ static size_t br_port_get_slave_size(const struct net_device *brdev, } static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { + [IFLA_BR_UNSPEC] = { .strict_start_type = IFLA_BR_MCAST_QUERIER_STATE + 1 }, [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 }, [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 }, [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
--
2.42.0