From: Alexander Aring <aahringo@redhat.com>
Date: Mon, 5 Apr 2021 00:30:41 +0000 (-0400)
Subject: net: ieee802154: forbid monitor for set llsec params
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=88c17855ac4291fb462e13a86b7516773b6c932e;p=linux.git

net: ieee802154: forbid monitor for set llsec params

This patch forbids to set llsec params for monitor interfaces which we
don't support yet.

Reported-by: syzbot+8b6719da8a04beeafcc3@syzkaller.appspotmail.com
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-3-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
---

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 1600edb981073..ce8956f31ef98 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1384,6 +1384,9 @@ static int nl802154_set_llsec_params(struct sk_buff *skb,
 	u32 changed = 0;
 	int ret;
 
+	if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+		return -EOPNOTSUPP;
+
 	if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
 		u8 enabled;