Thread (35 messages) flat view 35 messages, 1 author, 2021-04-12
STALE1959d

[PATCH AUTOSEL 5.11 29/51] net: ieee802154: stop dump llsec keys for monitors

From: Sasha Levin <sashal@kernel.org>
Date: 2021-04-12 16:27:07
Also in: lkml, stable
Subsystem: ieee 802.15.4 subsystem, networking [general], the rest · Maintainers: Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Alexander Aring <aahringo@redhat.com>

[ 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 (local)
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ieee802154/nl802154.c | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index dd43aa03200e..c85e4230ec60 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1493,6 +1493,11 @@ 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;
-- 
2.30.2
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