linux-kernel - [PATCH v2 0/5] uapi: fix remaining kconfig leaks in UAPI headers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20260112-headers_install-config-leak-v2-0-4d8084444603@linutronix.de>
Date: Mon, 12 Jan 2026 08:58:28 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Vineet Gupta <vgupta@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Dinh Nguyen <dinguyen@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
 Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
 "H. Peter Anvin" <hpa@...or.com>
Cc: linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, Arnd Bergmann <arnd@...db.de>, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH v2 0/5] uapi: fix remaining kconfig leaks in UAPI headers

A few UAPI headers still contained references to kconfig symbols.
Clean them all up and afterwards remove the now useless exception
machinery in headers_install.sh.

Intended to be routed through the kbuild tree.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
Changes in v2:
- Drop ARC_HAS_SWAPE kconfig option, use ARCH_USE_BUILTIN_BSWAP
- Drop PSR_ENDSTATE from the ARM ptrace.h header.
- Drop nios2 uapi asm/swab.h.
- Link to v1: https://lore.kernel.org/r/20251230-headers_install-config-leak-v1-0-efba5c58073d@linutronix.de

---
Thomas Weißschuh (5):
      ARC: Always use SWAPE instructions and enable ARCH_USE_BUILTIN_BSWAP
      ARM: uapi: Drop PSR_ENDSTATE
      nios2: uapi: Remove custom asm/swab.h from UAPI
      x86/uapi: Stop leaking kconfig references to userspace
      scripts: headers_install.sh: Remove config leak ignore machinery

 arch/arc/Kconfig                         |  6 +-
 arch/arc/Makefile                        |  3 +-
 arch/arc/include/uapi/asm/swab.h         | 99 --------------------------------
 arch/arm/include/asm/processor.h         |  3 +-
 arch/arm/include/uapi/asm/ptrace.h       |  9 ---
 arch/arm/kernel/signal.c                 |  3 +-
 arch/nios2/include/{uapi => }/asm/swab.h |  0
 arch/x86/include/uapi/asm/auxvec.h       |  2 +-
 scripts/headers_install.sh               | 30 +---------
 9 files changed, 9 insertions(+), 146 deletions(-)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251229-headers_install-config-leak-b8a9219d8b3c

Best regards,
-- 
Thomas Weißschuh <thomas.weissschuh@...utronix.de>