[patch] bridge: make buffer larger in br_setlink()

Dan Carpenter
2012-12-07T06:18:54Z

__IFLA_BRPORT_MAX is one larger than IFLA_BRPORT_MAX. We pass
IFLA_BRPORT_MAX to nla_parse_nested() so we need IFLA_BRPORT_MAX + 1
elements. Also Smatch complains that we read past the end of the array
when in br_set_port_flag() when it's called with IFLA_BRPORT_FAST_LEAVE.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Only needed in linux-next.

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 850b7d1..cfc5cfe 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -239,7 +239,7 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh)
struct ifinfomsg *ifm;
struct nlattr *protinfo;
struct net_bridge_port *p;
- struct nlattr *tb[IFLA_BRPORT_MAX];
+ struct nlattr *tb[__IFLA_BRPORT_MAX];
int err;

ifm = nlmsg_data(nlh);