From: Alexander Aring <aahri...@redhat.com> [ Upstream commit 9ec87e322428d4734ac647d1a8e507434086993d ]
This patch forbids to add llsec seclevel 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/20210405003054.256017-14-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 10fc37e45e2b..f0b47d43c9f6 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -2120,6 +2120,9 @@ static int nl802154_add_llsec_seclevel(struct sk_buff *skb, struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_seclevel sl; + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + return -EOPNOTSUPP; + if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0) return -EINVAL; -- 2.30.2
