linux-kernel - Re: [PATCH] kvm: don't take vcpu mutex for obviously invalid vcpu ioctls

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:	Mon, 22 Sep 2014 23:29:16 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Marcelo Tosatti <mtosatti@...hat.com>,
	David Matlack <dmatlack@...gle.com>
CC:	Gleb Natapov <gleb@...nel.org>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kvm: don't take vcpu mutex for obviously invalid vcpu
 ioctls

Il 22/09/2014 22:08, Marcelo Tosatti ha scritto:
> > This patch does not change functionality, it just makes invalid ioctls
> > fail faster.
> 
> Should not be executing vcpu ioctls without interrupt KVM_RUN in the
> first place.

This is not entirely true, there are a couple of asynchronous ioctls
though they are not used on x86 (commit 2122ff5eab8f, KVM: move vcpu
locking to dispatcher for generic vcpu ioctls, 2010-05-13).

Paolo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/