This is a note to let you know that I've just added the patch titled net: ieee802154: forbid monitor for del llsec seclevel to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-ieee802154-forbid-monitor-for-del-llsec-seclevel.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9dde130937e95b72adfae64ab21d6e7e707e2dac Mon Sep 17 00:00:00 2001 From: Alexander Aring <aahringo@xxxxxxxxxx> Date: Sun, 4 Apr 2021 20:30:53 -0400 Subject: net: ieee802154: forbid monitor for del llsec seclevel From: Alexander Aring <aahringo@xxxxxxxxxx> commit 9dde130937e95b72adfae64ab21d6e7e707e2dac upstream. This patch forbids to del llsec seclevel for monitor interfaces which we don't support yet. Otherwise we will access llsec mib which isn't initialized for monitors. Reported-by: syzbot+fbf4fc11a819824e027b@xxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Alexander Aring <aahringo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210405003054.256017-15-aahringo@xxxxxxxxxx Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/ieee802154/nl802154.c | 3 +++ 1 file changed, 3 insertions(+) --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -2087,6 +2087,9 @@ static int nl802154_del_llsec_seclevel(s struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_seclevel sl; + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + return -EOPNOTSUPP; + if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0) Patches currently in stable-queue which might be from aahringo@xxxxxxxxxx are queue-4.4/net-ieee802154-fix-nl802154-del-llsec-devkey.patch queue-4.4/net-ieee802154-fix-nl802154-del-llsec-key.patch queue-4.4/net-ieee802154-forbid-monitor-for-del-llsec-seclevel.patch queue-4.4/net-ieee802154-fix-nl802154-add-llsec-key.patch queue-4.4/net-ieee802154-forbid-monitor-for-set-llsec-params.patch queue-4.4/net-ieee802154-nl-mac-fix-check-on-panid.patch queue-4.4/net-mac802154-fix-general-protection-fault.patch queue-4.4/net-ieee802154-fix-nl802154-del-llsec-dev.patch queue-4.4/net-ieee802154-stop-dump-llsec-params-for-monitors.patch