linux-kernel - [patch V5 00/12] uaccess: Provide and use scopes for user access

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Message-ID: <20251027083700.573016505@linutronix.de>
Date: Mon, 27 Oct 2025 09:43:40 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
cc: kernel test robot <lkp@...el.com>,
 Russell King <linux@...linux.org.uk>,
 linux-arm-kernel@...ts.infradead.org,
 Linus Torvalds <torvalds@...ux-foundation.org>,
 x86@...nel.org,
 Madhavan Srinivasan <maddy@...ux.ibm.com>,
 Michael Ellerman <mpe@...erman.id.au>,
 Nicholas Piggin <npiggin@...il.com>,
 Christophe Leroy <christophe.leroy@...roup.eu>,
 linuxppc-dev@...ts.ozlabs.org,
 Paul Walmsley <pjw@...nel.org>,
 Palmer Dabbelt <palmer@...belt.com>,
 linux-riscv@...ts.infradead.org,
 Heiko Carstens <hca@...ux.ibm.com>,
 Christian Borntraeger <borntraeger@...ux.ibm.com>,
 Sven Schnelle <svens@...ux.ibm.com>,
 linux-s390@...r.kernel.org,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
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 Jan Kara <jack@...e.cz>,
 linux-fsdevel@...r.kernel.org
Subject: [patch V5 00/12] uaccess: Provide and use scopes for user access

This is a follow up on the V4 feedback:

   https://lore.kernel.org/20251022102427.400699796@linutronix.de

Changes vs. V4:

  - Rename get/put_user_masked() to get/put_user_inline()

  - Remove the futex helpers. Keep the inline get/put for now as it needs
    more testing whether they are really valuable.

  - Picked up tags

The series is based on v6.18-rc1 and also available from git:

    git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git uaccess/scoped

Thanks,

	tglx
---
Thomas Gleixner (12):
      ARM: uaccess: Implement missing __get_user_asm_dword()
      uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
      x86/uaccess: Use unsafe wrappers for ASM GOTO
      powerpc/uaccess: Use unsafe wrappers for ASM GOTO
      riscv/uaccess: Use unsafe wrappers for ASM GOTO
      s390/uaccess: Use unsafe wrappers for ASM GOTO
      uaccess: Provide scoped user access regions
      uaccess: Provide put/get_user_inline()
      coccinelle: misc: Add scoped_masked_$MODE_access() checker script
      futex: Convert to get/put_user_inline()
      x86/futex: Convert to scoped user access
      select: Convert to scoped user access

 arch/arm/include/asm/uaccess.h               |   26 ++
 arch/powerpc/include/asm/uaccess.h           |    8 
 arch/riscv/include/asm/uaccess.h             |    8 
 arch/s390/include/asm/uaccess.h              |    4 
 arch/x86/include/asm/futex.h                 |   75 ++----
 arch/x86/include/asm/uaccess.h               |   12 -
 fs/select.c                                  |   12 -
 include/linux/uaccess.h                      |  314 ++++++++++++++++++++++++++-
 kernel/futex/core.c                          |    4 
 kernel/futex/futex.h                         |   58 ----
 scripts/coccinelle/misc/scoped_uaccess.cocci |  108 +++++++++
 11 files changed, 501 insertions(+), 128 deletions(-)