linux-hardening - [GIT PULL] strlcpy removal for v6.8-rc1

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Message-ID: <202401191311.B6AA79D@keescook>
Date: Fri, 19 Jan 2024 13:14:55 -0800
From: Kees Cook <keescook@...omium.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	Andy Whitcroft <apw@...onical.com>,
	Azeem Shaikh <azeemshaikh38@...il.com>,
	Brian Foster <bfoster@...hat.com>,
	Dwaipayan Ray <dwaipayanray1@...il.com>,
	Joe Perches <joe@...ches.com>, Kees Cook <keescook@...omium.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	linux-bcachefs@...r.kernel.org, linux-hardening@...r.kernel.org,
	Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [GIT PULL] strlcpy removal for v6.8-rc1

Hi Linus,

Please pull this strlcpy removal for v6.8-rc1. As promised, it is the
"part 2" of the hardening tree, late in -rc1 now that all the other trees
with strlcpy() removals have landed. One new user appeared (in bcachefs)
but was a trivial refactor. The kernel is now free of the strlcpy() API!

Thanks!

-Kees

The following changes since commit b0d326da462e20285236e11e4cbc32085de9f363:

  Merge tag 'sched-urgent-2024-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (2024-01-18 11:57:33 -0800)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/strlcpy-removal-v6.8-rc1

for you to fetch changes up to d26270061ae66b915138af7cd73ca6f8b85e6b44:

  string: Remove strlcpy() (2024-01-19 11:59:11 -0800)

----------------------------------------------------------------
strlcpy removal for v6.8-rc1

- Remove of the final (very recent) user of strlcpy() (in bcachefs).

- Remove the strlcpy() API. Long live strscpy().

----------------------------------------------------------------
Kees Cook (2):
      bcachefs: Replace strlcpy() with strscpy()
      string: Remove strlcpy()

 fs/bcachefs/super.c                           |  4 +--
 include/linux/fortify-string.h                | 51 ---------------------------
 include/linux/string.h                        |  3 --
 lib/nlattr.c                                  |  2 +-
 lib/string.c                                  | 15 --------
 lib/test_fortify/write_overflow-strlcpy-src.c |  5 ---
 lib/test_fortify/write_overflow-strlcpy.c     |  5 ---
 7 files changed, 3 insertions(+), 82 deletions(-)
 delete mode 100644 lib/test_fortify/write_overflow-strlcpy-src.c
 delete mode 100644 lib/test_fortify/write_overflow-strlcpy.c

-- 
Kees Cook