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Message-ID: <20180214195631.GC20627@bombadil.infradead.org>
Date: Wed, 14 Feb 2018 11:56:31 -0800
From: Matthew Wilcox <willy@...radead.org>
To: Joe Perches <joe@...ches.com>
Cc: Kees Cook <keescook@...omium.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Matthew Wilcox <mawilcox@...rosoft.com>,
Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH 0/2] Add kvzalloc_struct to complement kvzalloc_array
On Wed, Feb 14, 2018 at 11:43:46AM -0800, Joe Perches wrote:
> On Wed, 2018-02-14 at 11:36 -0800, Matthew Wilcox wrote:
> > If somebody wants them, then we can add them.
>
> Yeah, but I don't think any of it is necessary.
>
> How many of these struct+bufsize * count entries
> actually exist?
Wrong question. How many of them currently exist that don't check for
integer overflow? How many of them will be added in the future that
will fail to check for integer overflow?
I chose five at random to fix as demonstration that the API is good.
There are more; I imagine that Julia will be able to tell us how many.
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