[PATCH 7/7] regulatory: add NULL to alpha2

[Emmanuel Grumbach <emmanuel.grumbach@intel.com>]

From: Eliad Peller <eliad@wizery.com>

alpha2 is defined as 2-chars array, but is used in multiple
places as string (e.g. with nla_put_string calls), which
might leak kernel data.

Solve it by simply adding an extra char for the NULL
terminator, making such operations safe.

Change-Id: Ib31639dc65deab62953923cab3cdf169cb1d0d32
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 include/net/regulatory.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index 2599924..dad7ab2 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -167,7 +167,7 @@ struct ieee80211_reg_rule {
 struct ieee80211_regdomain {
 	struct rcu_head rcu_head;
 	u32 n_reg_rules;
-	char alpha2[2];
+	char alpha2[3];
 	enum nl80211_dfs_regions dfs_region;
 	struct ieee80211_reg_rule reg_rules[];
 };
-- 
1.8.3.2