From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49131C3279B for ; Tue, 10 Jul 2018 18:19:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14F19208E5 for ; Tue, 10 Jul 2018 18:19:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 14F19208E5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732401AbeGJSSh (ORCPT ); Tue, 10 Jul 2018 14:18:37 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:51618 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732354AbeGJSSh (ORCPT ); Tue, 10 Jul 2018 14:18:37 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 60DDE1BB0; Tue, 10 Jul 2018 11:01:29 -0700 (PDT) Received: from lakrids.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D42D63F589; Tue, 10 Jul 2018 11:01:27 -0700 (PDT) From: Mark Rutland To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: catalin.marinas@arm.com, christoffer.dall@arm.com, kvmarm@lists.cs.columbia.edu, marc.zyngier@arm.com, mark.rutland@arm.com, will.deacon@arm.com Subject: [PATCH 0/2] arm64: spectre-v1 write fixes (CVE-2018-3693) Date: Tue, 10 Jul 2018 19:01:21 +0100 Message-Id: <20180710180123.56461-1-mark.rutland@arm.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These patches inhibit spectre-v1-write gadgets found in arch/arm64, using the same mitigation applied to existing spectre-v1-read gadgets. This issue is also known as CVE-2018-3693, or "bounds check bypass store". More details can be found in the Arm Cache Speculation Side-channels whitepaper, available from the Arm security updates site [1]. Thanks, Mark. [1] https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability Mark Rutland (2): arm64: fix possible spectre-v1 write in ptrace_hbp_set_event() KVM: arm/arm64: vgic: fix possible spectre-v1 write in vgic_mmio_write_apr() arch/arm64/kernel/ptrace.c | 19 +++++++++++-------- virt/kvm/arm/vgic/vgic-mmio-v2.c | 3 +++ 2 files changed, 14 insertions(+), 8 deletions(-) -- 2.11.0