From: Alexander Aring <aahringo@redhat.com>
Date: Mon, 5 Apr 2021 00:30:48 +0000 (-0400)
Subject: net: ieee802154: stop dump llsec devkeys for monitors
X-Git-Tag: v4.4.268~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89a6f665b25fb3d91d3a1d31f9c3235efe74e05b;p=thirdparty%2Fkernel%2Fstable.git

net: ieee802154: stop dump llsec devkeys for monitors

[ Upstream commit 080d1a57a94d93e70f84b7a360baa351388c574f ]

This patch stops dumping llsec devkeys 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/20210405003054.256017-10-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 a602fd45e384d..19d0d22ff625b 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1839,6 +1839,11 @@ nl802154_dump_llsec_devkey(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;