From e44d8fe2b5c27ecc230f886d4cc49fcbd86f87a0 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Fri, 4 Mar 2011 21:36:41 +0000 Subject: batman-adv: Disallow regular interface as mesh device When trying to associate a net_device with another net_device which already exists, batman-adv assumes that this interface is a fully initialized batman mesh interface without checking it. The behaviour when accessing data behind netdev_priv of a random net_device is undefined and potentially dangerous. Reported-by: Linus Lüssing Signed-off-by: Marek Lindner --- net/batman-adv/soft-interface.h | 1 + 1 file changed, 1 insertion(+) (limited to 'net/batman-adv/soft-interface.h') diff --git a/net/batman-adv/soft-interface.h b/net/batman-adv/soft-interface.h index 80a3607df186..4789b6f2a0b3 100644 --- a/net/batman-adv/soft-interface.h +++ b/net/batman-adv/soft-interface.h @@ -31,5 +31,6 @@ void interface_rx(struct net_device *soft_iface, int hdr_size); struct net_device *softif_create(char *name); void softif_destroy(struct net_device *soft_iface); +int softif_is_valid(struct net_device *net_dev); #endif /* _NET_BATMAN_ADV_SOFT_INTERFACE_H_ */ -- cgit v1.2.3-55-g7522