linux-kernel - Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

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:   Thu, 24 Nov 2016 11:35:09 +0000
From:   David Howells <dhowells@...hat.com>
To:     Andrey Ryabinin <ryabinin.a.a@...il.com>
Cc:     dhowells@...hat.com, jmorris@...ei.org,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-ima-devel@...ts.sourceforge.net, herbert@...dor.apana.org.au
Subject: Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

Andrey Ryabinin <ryabinin.a.a@...il.com> wrote:

> I'm also made a fix for this yesterday -
> http://lkml.kernel.org/r/1479918484-31952-1-git-send-email-aryabinin@virtuozzo.com

I should add a record to the MAINTAINERS file that directs patches to MPI to
keyrings@...r.kernel.org so that I see things like this.

> The only small difference is that in my the limb space is not
> allocated when it's not needed, i.e. when res->nlimbs == 0.

I guess if nlimbs is 0 then the value is 0, right?

David