From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752049AbdJIGai (ORCPT ); Mon, 9 Oct 2017 02:30:38 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:47931 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751530AbdJIGah (ORCPT ); Mon, 9 Oct 2017 02:30:37 -0400 X-ME-Sender: X-Sasl-enc: XNW8IXgbP4sGEHGsHJJRAOAtgE0Ym7A2mnMQCTT+5e4G 1507530635 From: "Tobin C. Harding" To: Paolo Bonzini , rkrcmar@redhat.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, "Tobin C. Harding" Subject: [PATCH] KVM: remove printing of token address Date: Mon, 9 Oct 2017 17:30:14 +1100 Message-Id: <1507530614-10504-1-git-send-email-me@tobin.cc> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org KVM currently prints the address of the consumer token. It is not immediately clear what benefit it is to see this address. Printing this address leaks kernel pointers into dmesg and is a security risk. Remove the consumer token address from error message output. Signed-off-by: Tobin C. Harding --- virt/kvm/eventfd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index f2ac53ab8243..b54503ed60bd 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -416,8 +416,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) irqfd->consumer.start = kvm_arch_irq_bypass_start; ret = irq_bypass_register_consumer(&irqfd->consumer); if (ret) - pr_info("irq bypass consumer (token %p) registration fails: %d\n", - irqfd->consumer.token, ret); + pr_info("irq bypass consumer registration fails: %d\n", ret); } #endif -- 2.7.4