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From: Russell Currey <ruscur@russell.cc>
To: linuxppc-dev@lists.ozlabs.org
Cc: Russell Currey <ruscur@russell.cc>,
	christophe.leroy@c-s.fr, joel@jms.id.au, mpe@ellerman.id.au,
	ajd@linux.ibm.com, dja@axtens.net, npiggin@gmail.com,
	kernel-hardening@lists.openwall.com
Subject: [PATCH v6 0/5] Implement STRICT_MODULE_RWX for powerpc
Date: Tue, 24 Dec 2019 16:55:40 +1100
Message-ID: <20191224055545.178462-1-ruscur@russell.cc> (raw)

v5 cover letter: https://lore.kernel.org/kernel-hardening/20191030073111.140493-1-ruscur@russell.cc/
v4 cover letter: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-October/198268.html
v3 cover letter: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-October/198023.html

Changes since v5:
	[1/5]: Addressed review comments from Christophe Leroy (thanks!)
	[2/5]: Use patch_instruction() instead of memcpy() thanks to mpe

Thanks for the feedback, hopefully this is the final iteration.  I have a patch
to remove the STRICT_KERNEL_RWX incompatibility with RELOCATABLE for book3s64
coming soon, so with that we should have a great basis for powerpc RWX going
forward.

Russell Currey (5):
  powerpc/mm: Implement set_memory() routines
  powerpc/kprobes: Mark newly allocated probes as RO
  powerpc/mm/ptdump: debugfs handler for W+X checks at runtime
  powerpc: Set ARCH_HAS_STRICT_MODULE_RWX
  powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig

 arch/powerpc/Kconfig                   |  2 +
 arch/powerpc/Kconfig.debug             |  6 +-
 arch/powerpc/configs/skiroot_defconfig |  1 +
 arch/powerpc/include/asm/set_memory.h  | 32 ++++++++++
 arch/powerpc/kernel/kprobes.c          |  6 +-
 arch/powerpc/mm/Makefile               |  1 +
 arch/powerpc/mm/pageattr.c             | 83 ++++++++++++++++++++++++++
 arch/powerpc/mm/ptdump/ptdump.c        | 21 ++++++-
 8 files changed, 147 insertions(+), 5 deletions(-)
 create mode 100644 arch/powerpc/include/asm/set_memory.h
 create mode 100644 arch/powerpc/mm/pageattr.c

-- 
2.24.1


             reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-24  5:55 Russell Currey [this message]
2019-12-24  5:55 ` [PATCH v6 1/5] powerpc/mm: Implement set_memory() routines Russell Currey
2020-01-08 12:52   ` Christophe Leroy
2020-02-03  0:46     ` Russell Currey
2020-02-03  7:06       ` Christophe Leroy
2020-01-20  8:35   ` Christophe Leroy
2019-12-24  5:55 ` [PATCH v6 2/5] powerpc/kprobes: Mark newly allocated probes as RO Russell Currey
2020-01-08 16:48   ` Christophe Leroy
2019-12-24  5:55 ` [PATCH v6 3/5] powerpc/mm/ptdump: debugfs handler for W+X checks at runtime Russell Currey
2019-12-31 17:14   ` Christophe Leroy
2020-01-07 10:48     ` Michael Ellerman
2019-12-24  5:55 ` [PATCH v6 4/5] powerpc: Set ARCH_HAS_STRICT_MODULE_RWX Russell Currey
2019-12-24  5:55 ` [PATCH v6 5/5] powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig Russell Currey

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