net: ieee802154: stop dump llsec keys for monitors

[ Upstream commit fb3c5cdf88cd504ef11d59e8d656f4bc896c6922 ]

This patch stops dumping llsec keys for monitors which we don't support
yet. Otherwise we will access llsec mib which isn't initialized for
monitors.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-4-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index f07a208ae21fe639d372871b4c0af58cd68f28d9..41d64b963c788229fdc2a05c45cb60be0fdb137b 100644 (file)
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1531,6 +1531,11 @@ nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
        if (err)
                return err;
 
+       if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+               err = skb->len;
+               goto out_err;
+       }
+
        if (!wpan_dev->netdev) {
                err = -EINVAL;
                goto out_err;