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| author | Alexander Aring <aahringo@redhat.com> | 2021-04-04 20:30:53 -0400 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2021-04-06 22:32:52 +0200 |
| commit | 9dde130937e95b72adfae64ab21d6e7e707e2dac (patch) | |
| tree | 1e7272c69231eb3bd1d70bc1fb42ee611a810bbb | |
| parent | 9ec87e322428d4734ac647d1a8e507434086993d (diff) | |
| download | linux-stable-9dde130937e95b72adfae64ab21d6e7e707e2dac.tar.gz linux-stable-9dde130937e95b72adfae64ab21d6e7e707e2dac.tar.bz2 linux-stable-9dde130937e95b72adfae64ab21d6e7e707e2dac.zip | |
net: ieee802154: forbid monitor for del llsec seclevel
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@syzkaller.appspotmail.com
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-15-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
| -rw-r--r-- | net/ieee802154/nl802154.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 28427ce52a9b..effc4c1a4780 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -2133,6 +2133,9 @@ static int nl802154_del_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 (!info->attrs[NL802154_ATTR_SEC_LEVEL] || llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0) |