[GIT PULL] x86/entry changes for v6.8

From: Ingo Molnar
Date: Mon Jan 08 2024 - 06:30:29 EST


Linus,

Please pull the latest x86/entry git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-entry-2024-01-08

# HEAD: 1e4d3001f59fb7a9917cb746544b65e616b5f809 x86/entry: Harden return-to-user

x86/entry changes for v6.8:

- Optimize common_interrupt_return()

- Harden the return-to-user code by making a CONFIG_DEBUG_ENTRY=y
check unconditional & moving it closer to the IRET.

Thanks,

Ingo

------------------>
Peter Zijlstra (2):
x86/entry: Optimize common_interrupt_return()
x86/entry: Harden return-to-user


arch/x86/entry/calling.h | 12 +++++++++---
arch/x86/entry/entry_64.S | 33 ++++++++++++++++++++++-----------
2 files changed, 31 insertions(+), 14 deletions(-)