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authorAlexander Aring <aahringo@redhat.com>2021-04-04 20:30:46 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-04-28 12:05:46 +0200
commit91a35cfd989b5635adad13909688c1f25ef2afcc (patch)
treeca6e5d005808468f35b9d6269184e6e5e00efe22
parent0068d5f0ac1048d68fe838ef51c075bd7d1c510e (diff)
net: ieee802154: forbid monitor for add llsec dev
[ Upstream commit 5303f956b05a2886ff42890908156afaec0f95ac ] This patch forbids to add 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@redhat.com> Link: https://lore.kernel.org/r/20210405003054.256017-8-aahringo@redhat.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--net/ieee802154/nl802154.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index e4ba6764c4a3..a602fd45e384 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1750,6 +1750,9 @@ static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
struct ieee802154_llsec_device dev_desc;
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
&dev_desc) < 0)
return -EINVAL;