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Date: Tue,  4 Apr 2017 15:12:11 -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] bug: further enhance use of CHECK_DATA_CORRUPTION

This continues in applying the CHECK_DATA_CORRUPTION tests where
appropriate, and pulling similar CONFIGs under the same check. Most
notably, this adds the checks to refcount_t so that system builders can
Oops their kernels when encountering a potential refcounter attack. (And
so now the LKDTM tests for refcount issues pass correctly.)

The series depends on the changes in -next made to lib/refcount.c,
so it might be easiest if this goes through the locking tree...

v2 is a rebase to -next and adjusts to using WARN_ONCE() instead of WARN().

-Kees

v1 was here: https://lkml.org/lkml/2017/3/6/720

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