From: Alexander Aring <aahringo@redhat.com>
Date: Mon, 5 Apr 2021 00:30:42 +0000 (-0400)
Subject: net: ieee802154: stop dump llsec keys for monitors
X-Git-Tag: v4.4.268~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3479cf505a2c5baadeea543705d14d6e1337539c;p=thirdparty%2Fkernel%2Fstable.git

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 c23c08f49c3c3..78a0edf268541 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1481,6 +1481,11 @@ 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;