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Date: Tue,  4 Apr 2017 15:12:15 -0700
From: Kees Cook <keescook@...omium.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Kees Cook <keescook@...omium.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Kalle Valo <kvalo@...eaurora.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Jakub Kicinski <jakub.kicinski@...ronome.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Olof Johansson <olof@...om.net>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	George Spelvin <linux@...encehorizons.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	David Windsor <dwindsor@...il.com>,
	linux-kernel@...r.kernel.org,
	kernel-hardening@...ts.openwall.com
Subject: [PATCH v2 4/7] bug: Enable DEBUG_CREDENTIALS under BUG_ON_DATA_CORRUPTION

Since CONFIG_DEBUG_CREDENTIALS already handles reporting and issuing a
BUG when it encounters corruption, add this to the list of corruption
test CONFIGs that are enabled under CONFIG_BUG_ON_DATA_CORRUPTION.

Signed-off-by: Kees Cook <keescook@...omium.org>
---
 lib/Kconfig.debug | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 5ac4d1148385..9a1b6b56cef4 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1288,7 +1288,7 @@ config DEBUG_NOTIFIERS
 
 config DEBUG_CREDENTIALS
 	bool "Debug credential management"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL || BUG_ON_DATA_CORRUPTION
 	help
 	  Enable this to turn on some debug checking for credential
 	  management.  The additional code keeps track of the number of
@@ -1996,6 +1996,7 @@ config TEST_STATIC_KEYS
 
 config BUG_ON_DATA_CORRUPTION
 	bool "Trigger a BUG when data corruption is detected"
+	select DEBUG_CREDENTIALS
 	select DEBUG_LIST
 	help
 	  This option enables several inexpensive data corruption checks.
-- 
2.7.4

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