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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 v5 0/5] Implement STRICT_MODULE_RWX for powerpc
Date: Wed, 30 Oct 2019 18:31:06 +1100
Message-ID: <20191030073111.140493-1-ruscur@russell.cc> (raw)

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 v4:
	[1/5]: Addressed review comments from Michael Ellerman (thanks!)
	[4/5]: make ARCH_HAS_STRICT_MODULE_RWX depend on
	       ARCH_HAS_STRICT_KERNEL_RWX to simplify things and avoid
	       STRICT_MODULE_RWX being *on by default* in cases where
	       STRICT_KERNEL_RWX is *unavailable*
	[5/5]: split skiroot_defconfig changes out into its own patch

The whole Kconfig situation is really weird and confusing, I believe the
correct resolution is to change arch/Kconfig but the consequences are so
minor that I don't think it's worth it, especially given that I expect
powerpc to have mandatory strict RWX Soon(tm).

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          |  3 +
 arch/powerpc/mm/Makefile               |  1 +
 arch/powerpc/mm/pageattr.c             | 77 ++++++++++++++++++++++++++
 arch/powerpc/mm/ptdump/ptdump.c        | 21 ++++++-
 8 files changed, 140 insertions(+), 3 deletions(-)
 create mode 100644 arch/powerpc/include/asm/set_memory.h
 create mode 100644 arch/powerpc/mm/pageattr.c

-- 
2.23.0


             reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-30  7:31 Russell Currey [this message]
2019-10-30  7:31 ` [PATCH v5 1/5] powerpc/mm: Implement set_memory() routines Russell Currey
2019-10-30  8:01   ` Christophe Leroy
2019-10-30  7:31 ` [PATCH v5 2/5] powerpc/kprobes: Mark newly allocated probes as RO Russell Currey
2019-11-01 14:23   ` Daniel Axtens
2019-11-02 10:45   ` Michael Ellerman
2019-12-05 23:47     ` Michael Ellerman
2019-12-12  6:43       ` Russell Currey
2019-10-30  7:31 ` [PATCH v5 3/5] powerpc/mm/ptdump: debugfs handler for W+X checks at runtime Russell Currey
2019-10-30  7:31 ` [PATCH v5 4/5] powerpc: Set ARCH_HAS_STRICT_MODULE_RWX Russell Currey
2019-10-30  7:31 ` [PATCH v5 5/5] powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig Russell Currey
2019-10-31  0:05   ` Joel Stanley
2019-10-30  8:58 ` [PATCH v5 0/5] Implement STRICT_MODULE_RWX for powerpc Christophe Leroy
2019-10-30 18:30   ` Kees Cook
2019-10-30 19:28     ` Christophe Leroy
2019-10-31  0:09   ` Russell Currey

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