linux-kernel - [RFC][PATCH 00/13] Provide saturating helpers for allocation

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Message-Id: <20180509004229.36341-1-keescook@chromium.org>
Date:   Tue,  8 May 2018 17:42:16 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Matthew Wilcox <mawilcox@...rosoft.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kernel-hardening@...ts.openwall.com
Subject: [RFC][PATCH 00/13] Provide saturating helpers for allocation

This is a stab at providing three new helpers for allocation size
calculation:

struct_size(), array_size(), and array3_size().

These are implemented on top of Rasmus's overflow checking functions,
and the last 8 patches are all treewide conversions of open-coded
multiplications into the various combinations of the helper functions.

-Kees