linux-kernel - [PATCH 0/2] x86/perf: A CR4.PCE bugfix and clarification

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-next>] [day] [month] [year] [list]

Message-Id: <cover.1489694270.git.luto@kernel.org>
Date:   Thu, 16 Mar 2017 12:59:38 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     X86 ML <x86@...nel.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bpetkov@...e.de>,
        Vince Weaver <vincent.weaver@...ne.edu>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 0/2] x86/perf: A CR4.PCE bugfix and clarification

Hi all-

Vince found a bug in our CR4.PCE handling.  While investigating, I
found what looked like another bug but actually wasn't.

Here's a fix for the bug (cc'd to stable) and a comment and lockdep
annotation for why the other non-bug isn't actually a bug.

Andy Lutomirski (2):
  x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm
  x86/perf: Clarify why x86_pmu_event_mapped() isn't racy

 arch/x86/events/core.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

-- 
2.9.3