[PATCH wpan 01/17] net: ieee802154: make shift exponent unsigned
From: Alexander Aring <aahringo@redhat.com>
Date: 2021-02-28 15:20:11
Subsystem:
ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch changes the iftype type variable to unsigned that it can never be reach a negative value. Reported-by: syzbot+7bf7b22759195c9a21e9@syzkaller.appspotmail.com Signed-off-by: Alexander Aring <aahringo@redhat.com> --- net/ieee802154/nl802154.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index e9e4652cd592..3ee09f6d13b7 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c@@ -898,8 +898,8 @@ static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; - enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); + u32 type = NL802154_IFTYPE_UNSPEC; /* TODO avoid failing a new interface * creation due to pending removal?
--
2.26.2