linux-kernel - [GIT PULL] x86/misc changes for v5.9

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: <20200803184720.GA1230231@gmail.com>
Date:   Mon, 3 Aug 2020 20:47:20 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/misc changes for v5.9

Linus,

Please pull the latest x86/misc git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-misc-2020-08-03

   # HEAD: a7e1f67ed29f0c339e2aa7483d13b085127566ab x86/msr: Filter MSR writes

Filter MSR writes from user-space by default, and print a syslog entry if
they happen outside the allowed set of MSRs, which is a single one for now,
MSR_IA32_ENERGY_PERF_BIAS.

The plan is to eventually disable MSR writes by default (they can still be
enabled via allow_writes=on).

Signed-off-by: Ingo Molnar <mingo@...nel.org>
 Thanks,

	Ingo

------------------>
Borislav Petkov (1):
      x86/msr: Filter MSR writes

 arch/x86/kernel/msr.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)