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net: ieee802154: forbid monitor for del llsec seclevel
commit 9dde130937
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@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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 3 additions and 0 deletions
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@ -2092,6 +2092,9 @@ static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
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struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
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struct ieee802154_llsec_seclevel sl;
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if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
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return -EOPNOTSUPP;
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if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
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llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
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&sl) < 0)
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