linux-kernel - Re: [PATCH v2 2/2] x86/kvm/hyper-v: disallow setting illegal vectors for direct mode stimers

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]

Message-ID: <20181213121802.GB2474@rkaganb.sw.ru>
Date:   Thu, 13 Dec 2018 12:18:06 +0000
From:   Roman Kagan <rkagan@...tuozzo.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
CC:     "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] x86/kvm/hyper-v: disallow setting illegal vectors
 for direct mode stimers

On Wed, Dec 12, 2018 at 05:50:17PM +0100, Vitaly Kuznetsov wrote:
> APIC vectors used for direct mode stimers should be valid for lAPIC and
> just like genuine Hyper-V we should #GP when an illegal one is specified.
> 
> Add the appropriate check to stimer_set_config()
> 
> Suggested-by: Roman Kagan <rkagan@...tuozzo.com>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> ---
>  arch/x86/kvm/hyperv.c | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Roman Kagan <rkagan@...tuozzo.com>