From: Eliad Peller <eliad@wizery.com>
Date: Wed, 11 Jun 2014 07:23:35 +0000 (+0300)
Subject: regulatory: add NUL to alpha2
X-Git-Tag: fixes-for-v3.18-merge-window~162^2^2~1^2~6
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=a5fe8e7695dc3f547e955ad2b662e3e72969e506

regulatory: add NUL to alpha2

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.

Cc: stable@vger.kernel.org
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index 259992444e80..dad7ab20a8cb 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[];
 };