From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755834AbcGHOtU (ORCPT ); Fri, 8 Jul 2016 10:49:20 -0400 Received: from foss.arm.com ([217.140.101.70]:43400 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755171AbcGHOtA (ORCPT ); Fri, 8 Jul 2016 10:49:00 -0400 Date: Fri, 8 Jul 2016 15:49:00 +0100 From: Will Deacon To: torvalds@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, james.morse@arm.com Subject: [GIT PULL] arm64: fixes for -rc7 Message-ID: <20160708144859.GC6493@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, A couple of late fixes here, but one that we've been sitting on for a few weeks while the details were worked out. Specifically, we now enforce USER_DS on taking exceptions whilst in the kernel, which avoids leaking kernel data to userspace through things like perf. The other patch is an update to a workaround for a hardware erratum on some Cavium SoCs. Please pull, Will --->8 The following changes since commit 4c2e07c6a29e0129e975727b9f57eede813eea85: Linux 4.7-rc5 (2016-06-26 17:52:03 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-fixes for you to fetch changes up to 47c459beabe969c6751e2ea8d1f85c5fa1652d6c: arm64: Enable workaround for Cavium erratum 27456 on thunderx-81xx (2016-07-07 18:35:21 +0100) ---------------------------------------------------------------- arm64 fixes: - Enforce USER_DS on exception entry from EL1 - Apply workaround for Cavium errata #27456 on Thunderx-81xx parts ---------------------------------------------------------------- Ganapatrao Kulkarni (1): arm64: Enable workaround for Cavium erratum 27456 on thunderx-81xx James Morse (1): arm64: kernel: Save and restore UAO and addr_limit on exception entry arch/arm64/include/asm/cputype.h | 2 ++ arch/arm64/include/asm/ptrace.h | 2 ++ arch/arm64/kernel/asm-offsets.c | 1 + arch/arm64/kernel/cpu_errata.c | 6 ++++++ arch/arm64/kernel/entry.S | 19 +++++++++++++++++-- arch/arm64/mm/fault.c | 3 ++- 6 files changed, 30 insertions(+), 3 deletions(-)