From: Kees Cook <kees@kernel.org>
To: Miguel Ojeda <ojeda@kernel.org>
Cc: "Kees Cook" <kees@kernel.org>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nick Desaulniers" <nick.desaulniers+lkml@gmail.com>,
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"Justin Stitt" <justinstitt@google.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Marco Elver" <elver@google.com>,
"Przemek Kitszel" <przemyslaw.kitszel@intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Christian Brauner" <brauner@kernel.org>,
"Jan Kara" <jack@suse.cz>,
"Nicolas Schier" <nicolas.schier@linux.dev>,
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"Gustavo A. R. Silva" <gustavoars@kernel.org>,
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"Yafang Shao" <laoar.shao@gmail.com>,
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"Alexander Lobakin" <aleksander.lobakin@intel.com>,
"Paolo Abeni" <pabeni@redhat.com>, "Tejun Heo" <tj@kernel.org>,
"Jeff Xu" <jeffxu@chromium.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Shakeel Butt" <shakeel.butt@linux.dev>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Brian Gerst" <brgerst@gmail.com>,
linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: [PATCH 0/3] compiler_types: Introduce __counted_by_ptr()
Date: Mon, 20 Oct 2025 15:01:14 -0700 [thread overview]
Message-ID: <20251020220005.work.095-kees@kernel.org> (raw)
Hi,
Add the __counted_by_ptr() macro for annotating pointer struct members
with the "counted_by" attribute. Add LKDTM test, and a first user.
-Kees
Kees Cook (3):
compiler_types: Introduce __counted_by_ptr()
lkdtm/bugs: Add __counted_by_ptr() test PTR_BOUNDS
coredump: Use __counted_by_ptr for struct core_name::corename
init/Kconfig | 11 +++
Makefile | 4 ++
include/linux/compiler_types.h | 21 +++++-
include/uapi/linux/stddef.h | 4 ++
drivers/misc/lkdtm/bugs.c | 90 ++++++++++++++++++++++---
fs/coredump.c | 8 +--
tools/testing/selftests/lkdtm/tests.txt | 2 +
7 files changed, 127 insertions(+), 13 deletions(-)
--
2.34.1
next reply other threads:[~2025-10-20 22:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-20 22:01 Kees Cook [this message]
2025-10-20 22:01 ` [PATCH 1/3] compiler_types: Introduce __counted_by_ptr() Kees Cook
2025-10-20 22:34 ` Marco Elver
2025-10-20 22:53 ` Bill Wendling
2025-10-21 9:59 ` Peter Zijlstra
2025-10-21 9:54 ` Peter Zijlstra
2025-10-21 19:24 ` Kees Cook
2025-10-22 8:20 ` Peter Zijlstra
2025-10-23 0:47 ` Kees Cook
2025-10-23 8:01 ` Peter Zijlstra
2025-10-23 13:45 ` Kees Cook
2025-10-20 22:01 ` [PATCH 2/3] lkdtm/bugs: Add __counted_by_ptr() test PTR_BOUNDS Kees Cook
2025-10-20 22:01 ` [PATCH 3/3] coredump: Use __counted_by_ptr for struct core_name::corename Kees Cook
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