linux-kernel - Re: [PATCH] KVM: x86: mask CPUID(0xD,0x1).EAX against host value

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20160407144051.GA13831@potion.brq.redhat.com>
Date:	Thu, 7 Apr 2016 16:40:52 +0200
From:	Radim Krčmář <rkrcmar@...hat.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] KVM: x86: mask CPUID(0xD,0x1).EAX against host value

2016-04-07 13:47+0200, Paolo Bonzini:
> This ensures that the guest doesn't see XSAVE extensions
> (e.g. xgetbv1 or xsavec) that the host lacks.
> 
> Cc: stable@...r.kernel.org
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
> ---

Reviewed-by: Radim Krčmář <rkrcmar@...hat.com>