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Date: Fri, 8 Jul 2016 08:45:54 -0500 (CDT)
From: Christoph Lameter <cl@...ux.com>
To: Michael Ellerman <mpe@...erman.id.au>
cc: Kees Cook <keescook@...omium.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
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"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
"David S. Miller" <davem@...emloft.net>
Subject: Re: Re: [PATCH 9/9] mm: SLUB hardened usercopy
support
On Fri, 8 Jul 2016, Michael Ellerman wrote:
> > I wonder if this code should be using size_from_object() instead of s->size?
>
> Hmm, not sure. Who's SLUB maintainer? :)
Me.
s->size is the size of the whole object including debugging info etc.
ksize() gives you the actual usable size of an object.
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