[PATCH net-next v2 11/13] macsec: validate IFLA_MACSEC_VALIDATION with NLA_POLICY_MAX
From: Sabrina Dubroca <sd@queasysnail.net>
Date: 2025-08-26 13:17:15
Subsystem:
networking drivers, networking [macsec], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Sabrina Dubroca, Linus Torvalds
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> --- drivers/net/macsec.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 5680e4b78dda..dc17b91dce2d 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c@@ -3772,7 +3772,7 @@ static const struct nla_policy macsec_rtnl_policy[IFLA_MACSEC_MAX + 1] = { [IFLA_MACSEC_ES] = { .type = NLA_U8 }, [IFLA_MACSEC_SCB] = { .type = NLA_U8 }, [IFLA_MACSEC_REPLAY_PROTECT] = { .type = NLA_U8 }, - [IFLA_MACSEC_VALIDATION] = { .type = NLA_U8 }, + [IFLA_MACSEC_VALIDATION] = NLA_POLICY_MAX(NLA_U8, MACSEC_VALIDATE_MAX), [IFLA_MACSEC_OFFLOAD] = NLA_POLICY_MAX(NLA_U8, MACSEC_OFFLOAD_MAX), };
@@ -4288,10 +4288,6 @@ static int macsec_validate_attr(struct nlattr *tb[], struct nlattr *data[], if ((sci && (scb || es)) || (scb && es)) return -EINVAL; - if (data[IFLA_MACSEC_VALIDATION] && - nla_get_u8(data[IFLA_MACSEC_VALIDATION]) > MACSEC_VALIDATE_MAX) - return -EINVAL; - if ((data[IFLA_MACSEC_REPLAY_PROTECT] && nla_get_u8(data[IFLA_MACSEC_REPLAY_PROTECT])) && !data[IFLA_MACSEC_WINDOW])
--
2.50.0