linux-kernel - [PATCH v2 0/2] usercopy: Convert test_user

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Date: Mon, 10 Jun 2024 14:33:27 -0700
From: Kees Cook <kees@...nel.org>
To: Mark Rutland <mark.rutland@....com>
Cc: Kees Cook <kees@...nel.org>,
	Vitor Massaru Iha <vitor@...saru.org>,
	Ivan Orlov <ivan.orlov0322@...il.com>,
	Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	kunit-dev@...glegroups.com,
	linux-hardening@...r.kernel.org
Subject: [PATCH v2 0/2] usercopy: Convert test_user_copy to KUnit test

Hi,

This builds on the proposal[1] from Mark and lets me convert the
existing usercopy selftest to KUnit. Besides adding this basic test to
the KUnit collection, it also opens the door for execve testing (which
depends on having a functional current->mm), and should provide the
basic infrastructure for adding Mark's much more complete usercopy tests.

 v2:
 - dropped "initial VMA", turns out it wasn't needed (Mark)
 - various cleanups in the test itself (Vitor)
 - moved new kunit resource to a separate file (David)
 v1: https://lore.kernel.org/all/20240519190422.work.715-kees@kernel.org/

-Kees

[1] https://lore.kernel.org/lkml/20230321122514.1743889-2-mark.rutland@arm.com/

Kees Cook (2):
  kunit: test: Add vm_mmap() allocation resource manager
  usercopy: Convert test_user_copy to KUnit test

 MAINTAINERS                                |   1 +
 include/kunit/test.h                       |  17 ++
 lib/Kconfig.debug                          |  21 +-
 lib/Makefile                               |   2 +-
 lib/kunit/Makefile                         |   1 +
 lib/kunit/user_alloc.c                     | 111 +++++++++
 lib/{test_user_copy.c => usercopy_kunit.c} | 273 ++++++++++-----------
 7 files changed, 271 insertions(+), 155 deletions(-)
 create mode 100644 lib/kunit/user_alloc.c
 rename lib/{test_user_copy.c => usercopy_kunit.c} (47%)

-- 
2.34.1