linux-kernel - [PATCH 0/5] x86/microcode: More urgent fixes

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: <20170109114147.5082-1-bp@alien8.de>
Date:   Mon,  9 Jan 2017 12:41:42 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     X86 ML <x86@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/5] x86/microcode: More urgent fixes

From: Borislav Petkov <bp@...e.de>

Hi guys,

here are fixes for three more issues with the microcode loader. First
one is culminating in adding an intel_get_microcode_revision() helper
which does the proper steps to get the current microcode revision on
an Intel CPU and should be used everywhere instead of opencoding (and
forgetting) to do a CPUID(1).

The other two are fixes for 06b8534cb728 ("x86/microcode: Rework
microcode loading") which slipped through my testing.

All this is for 4.10 only as it fixes fallout from stuff which went in
this merge window.

Please apply,
thanks.

Borislav Petkov (3):
  x86/CPU: Add native CPUID variants returning a single datum
  x86/microcode: Use native CPUID to tickle out microcode revision
  x86/microcode/intel: Add a helper which gives the microcode revision

Junichi Nomura (2):
  x86/microcode/intel: Fix allocation size of struct ucode_patch
  x86/microcode/intel: Use correct buffer size for saving microcode data

 arch/x86/include/asm/microcode_intel.h | 15 ++++++++
 arch/x86/include/asm/processor.h       | 18 +++++++++
 arch/x86/kernel/cpu/intel.c            | 11 ++----
 arch/x86/kernel/cpu/microcode/intel.c  | 70 +++++++++-------------------------
 4 files changed, 53 insertions(+), 61 deletions(-)

-- 
2.11.0