This is a note to let you know that I've just added the patch titled net: ieee802154: forbid monitor for del llsec devkey to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-ieee802154-forbid-monitor-for-del-llsec-devkey.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 36d92e29a521283851ede8bcfdde9833774f5dd9 Author: Alexander Aring <aahringo@xxxxxxxxxx> Date: Sun Apr 4 20:30:50 2021 -0400 net: ieee802154: forbid monitor for del llsec devkey [ Upstream commit 6fb8045319ef172dc88a8142e7f8b58c7608137e ] This patch forbids to del 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@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210405003054.256017-12-aahringo@xxxxxxxxxx Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 65987215dd0c..0c43b951a33f 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -1970,6 +1970,9 @@ static int nl802154_del_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_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) return -EINVAL;