[PATCH AUTOSEL 5.11 34/51] net: ieee802154: forbid monitor for del llsec dev
From: Sasha Levin <sashal@kernel.org>
Date: 2021-04-12 16:25:09
Also in:
lkml, stable
Subsystem:
ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Alexander Aring <aahringo@redhat.com> [ 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@redhat.com> Link: https://lore.kernel.org/r/20210405003054.256017-9-aahringo@redhat.com (local) Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@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 29aaeb094959..5c386575aec0 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c@@ -1781,6 +1781,9 @@ 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;
--
2.30.2