From 421eeea10d0a5e52256bce9544de477938104fdb Mon Sep 17 00:00:00 2001 From: Baozeng Ding Date: Thu, 26 May 2016 21:07:42 +0800 Subject: [PATCH] ieee802154: fix logic error in ieee802154_llsec_parse_dev_addr Fix a logic error to avoid potential null pointer dereference. Signed-off-by: Baozeng Ding Reviewed-by: Stefan Schmidt Signed-off-by: David S. Miller --- net/ieee802154/nl802154.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index ca207dbf673b..116187b5c267 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -1289,8 +1289,8 @@ ieee802154_llsec_parse_dev_addr(struct nlattr *nla, nl802154_dev_addr_policy)) return -EINVAL; - if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] && - !attrs[NL802154_DEV_ADDR_ATTR_MODE] && + if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || + !attrs[NL802154_DEV_ADDR_ATTR_MODE] || !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) return -EINVAL; -- 2.20.1