linux-kernel - [GIT PULL] x86/cpu for v5.17

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <YdwVl0H54fmUIux0@zn.tnic>
Date:   Mon, 10 Jan 2022 12:16:39 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] x86/cpu for v5.17

Hi Linus,

please pull two x86/cpu updates for 5.17.

Thx.

---

The following changes since commit 136057256686de39cc3a07c2e39ef6bc43003ff6:

  Linux 5.16-rc2 (2021-11-21 13:47:39 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_cpu_for_v5.17_rc1

for you to fetch changes up to 244122b4d2e5221e6abd6e21d6a58170104db781:

  x86/lib: Add fast-short-rep-movs check to copy_user_enhanced_fast_string() (2021-12-29 13:46:02 +0100)

----------------------------------------------------------------
- Enable the short string copies for CPUs which support them, in
copy_user_enhanced_fast_string()

- Avoid writing MSR_CSTAR on Intel due to TDX guests raising a #VE trap

----------------------------------------------------------------
Andi Kleen (1):
      x86/cpu: Don't write CSTAR MSR on Intel CPUs

Tony Luck (1):
      x86/lib: Add fast-short-rep-movs check to copy_user_enhanced_fast_string()

 arch/x86/kernel/cpu/common.c | 15 +++++++++++++--
 arch/x86/lib/copy_user_64.S  |  4 ++--
 2 files changed, 15 insertions(+), 4 deletions(-)

-- 
Regards/Gruss,
    Boris.

SUSE Software Solutions Germany GmbH, GF: Ivo Totev, HRB 36809, AG Nürnberg