From: Alexander Aring <aahri...@redhat.com>

[ Upstream commit b6e2949544a183f590ae6f3ef2d1aaaa2c44e38a ]

This patch forbids to del llsec key 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 <aahri...@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-6-aahri...@redhat.com
Signed-off-by: Stefan Schmidt <ste...@datenfreihafen.org>
Signed-off-by: Sasha Levin <sas...@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 0920f320b59b..7fdcbaecc4fd 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1625,6 +1625,9 @@ static int nl802154_del_llsec_key(struct sk_buff *skb, 
struct genl_info *info)
        struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
        struct ieee802154_llsec_key_id id;
 
+       if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+               return -EOPNOTSUPP;
+
        if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
            nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, 
info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
                return -EINVAL;
-- 
2.30.2



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