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Subject[PATCH 4.19 18/57] net: ieee802154: forbid monitor for add llsec devkey
Date
From: Alexander Aring <aahringo@redhat.com>

[ Upstream commit a347b3b394868fef15b16f143719df56184be81d ]

This patch forbids to add llsec devkey for monitor interfaces 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/20210405003054.256017-11-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ieee802154/nl802154.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 6d9fc2947dd8..eaeff7c08bdf 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1936,6 +1936,9 @@ static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info
struct ieee802154_llsec_device_key key;
__le64 extended_addr;

+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
info->attrs[NL802154_ATTR_SEC_DEVKEY],
--
2.30.2


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