linux-kernel - Re: [PATCH 0/2] Add kvzalloc_struct to complement kvzalloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 14 Feb 2018 11:43:46 -0800
From:   Joe Perches <joe@...ches.com>
To:     Matthew Wilcox <willy@...radead.org>
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, 2018-02-14 at 11:36 -0800, Matthew Wilcox wrote:
> On Wed, Feb 14, 2018 at 11:32:45AM -0800, Joe Perches wrote:
> > On Wed, 2018-02-14 at 11:23 -0800, Kees Cook wrote:
> > > On Wed, Feb 14, 2018 at 10:47 AM, Joe Perches <joe@...ches.com> wrote:
> > > > I think expanding the number of allocation functions
> > > > is not necessary.
> > > 
> > > I think removing common mispatterns in favor of overflow-protected
> > > allocation functions makes sense.
> > 
> > Function symmetry matters too.
> > 
> > These allocation functions are specific to kvz<foo>
> > and are not symmetric for k<foo>, v<foo>, devm_<foo>
> > <foo>_node, and the like.
> 
> 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?