linux-kernel - Re: [PATCH 0/6] Remove several VLAs in the crypto subsystem

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Message-ID: <CAJHCu1LLVoov_dHb-GuzyZpO3EVAwpeoJN_1PQHipBpAh8S1Gw@mail.gmail.com>
Date:   Sun, 8 Apr 2018 10:55:09 +0200
From:   Salvatore Mesoraca <s.mesoraca16@...il.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        linux-crypto <linux-crypto@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Eric Biggers <ebiggers3@...il.com>,
        Laura Abbott <labbott@...hat.com>
Subject: Re: [PATCH 0/6] Remove several VLAs in the crypto subsystem

2018-04-07 21:56 GMT+02:00 Kees Cook <keescook@...omium.org>:
> On Sat, Apr 7, 2018 at 11:38 AM, Salvatore Mesoraca
> <s.mesoraca16@...il.com> wrote:
>> As suggested by Laura Abbott[2], I'm resending my patch with
>> MAX_BLOCKSIZE and MAX_ALIGNMASK defined in an header, so they
>> can be used in other places.
>> I take this opportuinuty to deal with some other VLAs not
>> handled in the old patch.
>>
>> [1] http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
>> [2] http://lkml.kernel.org/r/4e536889-439a-49e6-dd95-2d4286913202@redhat.com
>>
>> Salvatore Mesoraca (6):
>>   crypto: api - laying macros for statically allocated buffers
>>   crypto: ctr - avoid VLA use
>>   crypto: api - avoid VLA use
>>   crypto: pcbc - avoid VLA use
>>   crypto: cts - avoid VLA use
>>   crypto: cfb - avoid VLA use
>>
>>  crypto/cfb.c      | 14 ++++++++++----
>>  crypto/cipher.c   |  7 ++++++-
>>  crypto/ctr.c      | 13 +++++++++++--
>>  crypto/cts.c      |  8 ++++++--
>>  crypto/internal.h |  8 ++++++++
>>  crypto/pcbc.c     |  9 +++++++--
>>  6 files changed, 48 insertions(+), 11 deletions(-)
>
> These all look good to me! Thanks for the refactoring. :)
>
> Reviewed-by: Kees Cook <keescook@...omium.org>

Thank you!

Salvatore