linux-kernel - [patch V3 00/32] x86: Add guard pages to exception and interrupt stacks

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Date:   Sun, 14 Apr 2019 17:59:36 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Andy Lutomirski <luto@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>
Subject: [patch V3 00/32] x86: Add guard pages to exception and interrupt
 stacks

Hi!

This is an updated version of the guard page series:

 V1:   https://lkml.kernel.org/r/20190331214020.836098943@linutronix.de
 V2:   https://lkml.kernel.org/r/20190405150658.237064784@linutronix.de

Changes vs. V2:

  - Fixed the broken stack trace storage in slub

  - Adjust the guard page ordering and fix the top macro (Sean)

  - Fix an off by one in the debug stack check (Sean)

  - Rename ISTACK_ prefix to ESTACK_ (Josh)

  - Collected Acked/Reviewed-by tags

The lot is also available from tip:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/stackguards

     310a7f5b0b42 ("x86/irq/64: Remove stack overflow debug code")

Thanks,

        tglx

8<-------------
 Documentation/x86/kernel-stacks       |   13 +++-
 arch/x86/Kconfig                      |    2 
 arch/x86/entry/entry_64.S             |   16 ++---
 arch/x86/include/asm/cpu_entry_area.h |   69 +++++++++++++++++++++--
 arch/x86/include/asm/debugreg.h       |    2 
 arch/x86/include/asm/irq.h            |    6 --
 arch/x86/include/asm/page_32_types.h  |    8 +-
 arch/x86/include/asm/page_64_types.h  |   16 ++---
 arch/x86/include/asm/processor.h      |   43 +++++---------
 arch/x86/include/asm/smp.h            |    2 
 arch/x86/include/asm/stackprotector.h |    6 +-
 arch/x86/include/asm/stacktrace.h     |    2 
 arch/x86/kernel/asm-offsets_64.c      |    4 +
 arch/x86/kernel/cpu/common.c          |   60 +++-----------------
 arch/x86/kernel/dumpstack_32.c        |    8 +-
 arch/x86/kernel/dumpstack_64.c        |   99 +++++++++++++++++++++++-----------
 arch/x86/kernel/head_64.S             |    2 
 arch/x86/kernel/idt.c                 |   19 +++---
 arch/x86/kernel/irq_32.c              |   41 +++++++-------
 arch/x86/kernel/irq_64.c              |   89 +++++++++++++++---------------
 arch/x86/kernel/irqinit.c             |    4 -
 arch/x86/kernel/nmi.c                 |   20 ++++++
 arch/x86/kernel/setup_percpu.c        |    5 -
 arch/x86/kernel/smpboot.c             |   15 ++++-
 arch/x86/kernel/vmlinux.lds.S         |    7 +-
 arch/x86/mm/cpu_entry_area.c          |   64 +++++++++++++++------
 arch/x86/mm/fault.c                   |    3 -
 arch/x86/tools/relocs.c               |    2 
 arch/x86/xen/smp_pv.c                 |    4 +
 arch/x86/xen/xen-head.S               |   10 +--
 drivers/xen/events/events_base.c      |    1 
 mm/slab.c                             |   30 ++++------
 32 files changed, 382 insertions(+), 290 deletions(-)