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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 0/5] add stack protector and guard page support
Date: Mon, 11 Sep 2023 17:08:55 +0200	[thread overview]
Message-ID: <20230911150900.3584523-1-a.fatoum@pengutronix.de> (raw)

GCC's strong stack protector feature is increasingly used as default in
many distros, because of comparatively low overhead. This series adds
support in barebox to catch stack frame overflow as well as a guard
page feature to catch stack region overflow.

Ahmad Fatoum (5):
  include: move PAGE_ definitions into linux/pagemap.h
  ARM: mark early C setup functions as __prereloc
  lib: add stackprotector support
  ARM: mmu: catch stack overflowing into TTB with stack guard page
  commands: add stacksmash command for causing stack overflows

 Makefile                           |   3 -
 arch/arm/cpu/common.c              |   2 +-
 arch/arm/cpu/interrupts_32.c       |  21 +++++-
 arch/arm/cpu/interrupts_64.c       |  38 +++++++---
 arch/arm/cpu/mmu_32.c              |  16 +++++
 arch/arm/cpu/mmu_64.c              |  15 ++++
 arch/arm/cpu/start.c               |   4 +-
 arch/arm/include/asm/barebox-arm.h |  18 ++++-
 arch/arm/include/asm/reloc.h       |   2 +-
 arch/arm/lib64/string.c            |   2 +-
 commands/Kconfig                   |   6 ++
 commands/Makefile                  |   1 +
 commands/stacksmash.c              |  58 ++++++++++++++++
 include/common.h                   |   6 +-
 include/linux/compiler_types.h     |  21 ++++++
 include/linux/pagemap.h            |   8 ++-
 lib/Kconfig                        |   2 +
 lib/Kconfig.hardening              | 108 +++++++++++++++++++++++++++++
 lib/Makefile                       |   1 +
 lib/stackprot.c                    |  32 +++++++++
 lib/string.c                       |   2 +-
 scripts/Makefile.lib               |  10 +++
 22 files changed, 350 insertions(+), 26 deletions(-)
 create mode 100644 commands/stacksmash.c
 create mode 100644 lib/Kconfig.hardening
 create mode 100644 lib/stackprot.c

-- 
2.39.2




             reply	other threads:[~2023-09-11 15:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-11 15:08 Ahmad Fatoum [this message]
2023-09-11 15:08 ` [PATCH 1/5] include: move PAGE_ definitions into linux/pagemap.h Ahmad Fatoum
2023-09-11 15:08 ` [PATCH 2/5] ARM: mark early C setup functions as __prereloc Ahmad Fatoum
2023-09-11 15:08 ` [PATCH 3/5] lib: add stackprotector support Ahmad Fatoum
2023-09-21  8:52   ` [PATCH] fixup! " Ahmad Fatoum
2023-09-11 15:08 ` [PATCH 4/5] ARM: mmu: catch stack overflowing into TTB with stack guard page Ahmad Fatoum
2023-09-11 15:09 ` [PATCH 5/5] commands: add stacksmash command for causing stack overflows Ahmad Fatoum
2023-09-12  4:48   ` Thorsten Scherer
2023-09-11 15:47 ` [PATCH] fixup! lib: add stackprotector support Ahmad Fatoum
2023-09-14  9:14 ` [PATCH] fixup! commands: add stacksmash command for causing stack overflows Ahmad Fatoum
2023-09-14 10:22   ` Thorsten Scherer
2023-09-14 11:05     ` Ahmad Fatoum
2023-09-21  8:49 ` [PATCH 0/5] add stack protector and guard page support Sascha Hauer

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