From: Alexander Aring aahringo@redhat.com
commit 1534efc7bbc1121e92c86c2dabebaf2c9dcece19 upstream.
This patch stops dumping llsec params for monitors which we don't support yet. Otherwise we will access llsec mib which isn't initialized for monitors.
Reported-by: syzbot+cde43a581a8e5f317bc2@syzkaller.appspotmail.com Signed-off-by: Alexander Aring aahringo@redhat.com Link: https://lore.kernel.org/r/20210405003054.256017-16-aahringo@redhat.com Signed-off-by: Stefan Schmidt stefan@datenfreihafen.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ieee802154/nl802154.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -820,8 +820,13 @@ nl802154_send_iface(struct sk_buff *msg, goto nla_put_failure;
#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + goto out; + if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) goto nla_put_failure; + +out: #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
genlmsg_end(msg, hdr);