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Date: Wed, 17 Aug 2016 13:17:36 -0700
From: Stephen Boyd <sboyd@codeaurora.org>
To: Kees Cook <keescook@chromium.org>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
        Laura Abbott <labbott@redhat.com>,
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        Dan Williams <dan.j.williams@intel.com>,
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Subject: Re: [PATCH v2 0/5] bug: Provide toggle for BUG on data corruption
Message-ID: <20160817201736.GB361@codeaurora.org>
References: <1471393229-27182-1-git-send-email-keescook@chromium.org>
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On 08/16, Kees Cook wrote:
> This adds a CONFIG to trigger BUG()s when the kernel encounters
> unexpected data structure integrity as currently detected with
> CONFIG_DEBUG_LIST.
> 
> Specifically list operations have been a target for widening flaws to gain
> "write anywhere" primitives for attackers, so this also consolidates the
> debug checking to avoid code and check duplication (e.g. RCU list debug
> was missing a check that got added to regular list debug). It also stops
> manipulations when corruption is detected, since worsening the corruption
> makes no sense. (Really, everyone should build with CONFIG_DEBUG_LIST
> since the checks are so inexpensive.)
> 
> This is mostly a refactoring of similar code from PaX and Grsecurity,
> along with MSM kernel changes by Stephen Boyd.

Which commit in the MSM kernel from me? I wonder if perhaps
you're thinking of a patch from Syed Rameez Mustafa like commit
1c014f321e6d67f47 in the msm-3.4 kernel.

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