linux-kernel - Re: [PATCH 0/4] selftests/vm/pkeys: Bug fixes and a new test

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] [day] [month] [year] [list]

Message-ID: <871r96b0v9.fsf@linux.ibm.com>
Date:   Sun, 13 Jun 2021 14:24:50 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
To:     Dave Hansen <dave.hansen@...ux.intel.com>, linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>, tglx@...utronix.de,
        linuxram@...ibm.com, sandipan@...ux.ibm.com,
        akpm@...ux-foundation.org, fweimer@...hat.com,
        desnesn@...ux.vnet.ibm.com, mingo@...nel.org,
        bauerman@...ux.ibm.com, mpe@...erman.id.au, mhocko@...nel.org,
        msuchanek@...e.de, shuah@...nel.org, x86@...nel.org
Subject: Re: [PATCH 0/4] selftests/vm/pkeys: Bug fixes and a new test

Dave Hansen <dave.hansen@...ux.intel.com> writes:

> There has been a lot of activity on the x86 front around the XSAVE
> architecture which is used to context-switch processor state (among
> other things).  In addition, AMD has recently joined the protection
> keys club by adding processor support for PKU.
>
> The AMD implementation helped uncover a kernel bug around the PKRU
> "init state", which actually applied to Intel's implementation but
> was just harder to hit.  This series adds a test which is expected
> to help find this class of bug both on AMD and Intel.  All the work
> around pkeys on x86 also uncovered a few bugs in the selftest.
>
> Any testing of this new code (especially from my powerpc friends)
> would be appreciated.

I tested this on ppc64.

Tested-by: Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com>

>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ram Pai <linuxram@...ibm.com>
> Cc: Sandipan Das <sandipan@...ux.ibm.com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Florian Weimer <fweimer@...hat.com>
> Cc: "Desnes A. Nunes do Rosario" <desnesn@...ux.vnet.ibm.com>
> Cc: Ingo Molnar <mingo@...nel.org>
> Cc: Thiago Jung Bauermann <bauerman@...ux.ibm.com>
> Cc: "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Michal Hocko <mhocko@...nel.org>
> Cc: Michal Suchanek <msuchanek@...e.de>
> Cc: Shuah Khan <shuah@...nel.org>
> Cc: x86@...nel.org