This is a note to let you know that I've just added the patch titled
net: ieee802154: forbid monitor for del llsec dev
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-dev.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 ba12e6cffad20c9d865723084a2821e2b2eb3b64
Author: Alexander Aring <aahringo@xxxxxxxxxx>
Date: Sun Apr 4 20:30:47 2021 -0400
net: ieee802154: forbid monitor for del llsec dev
[ Upstream commit ad8f9de1f3566686af35b1c6b43240726541da61 ]
This patch forbids to del llsec dev 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/20210405003054.256017-9-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 797888b4b2ce..4f6777193029 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1802,6 +1802,9 @@ static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
__le64 extended_addr;
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
if (!info->attrs[NL802154_ATTR_SEC_DEVICE] ||
nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
return -EINVAL;
