From: John Johansen <john.johansen@canonical.com>
Date: Thu, 17 Mar 2016 19:02:54 +0000 (-0700)
Subject: apparmor: check that xindex is in trans_table bounds
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=23ca7b640b4a55f8747301b6bd984dd05545f6a7;p=linux-beck.git

apparmor: check that xindex is in trans_table bounds

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
---

diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index a55fb2f170c9..951ae4633979 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -676,7 +676,7 @@ static bool verify_xindex(int xindex, int table_size)
 	int index, xtype;
 	xtype = xindex & AA_X_TYPE_MASK;
 	index = xindex & AA_X_INDEX_MASK;
-	if (xtype == AA_X_TABLE && index > table_size)
+	if (xtype == AA_X_TABLE && index >= table_size)
 		return 0;
 	return 1;
 }