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>,
"Bill Wendling" <morbo@google.com>,
"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>,
"Shuah Khan" <shuah@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>,
"Tamir Duberstein" <tamird@gmail.com>,
"Michael Kelley" <mhklinux@outlook.com>,
"kernel test robot" <lkp@intel.com>,
"Heiko Carstens" <hca@linux.ibm.com>,
"Uros Bizjak" <ubizjak@gmail.com>,
"Jan Hendrik Farr" <kernel@jfarr.cc>,
"Yafang Shao" <laoar.shao@gmail.com>,
"Marc Herbert" <Marc.Herbert@linux.intel.com>,
"Christopher Ferris" <cferris@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251020220005.work.095-kees@kernel.org \
--to=kees@kernel.org \
--cc=Marc.Herbert@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=aleksander.lobakin@intel.com \
--cc=arnd@arndb.de \
--cc=brauner@kernel.org \
--cc=brgerst@gmail.com \
--cc=cferris@google.com \
--cc=christophe.leroy@csgroup.eu \
--cc=elver@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=gustavoars@kernel.org \
--cc=hannes@cmpxchg.org \
--cc=hca@linux.ibm.com \
--cc=jack@suse.cz \
--cc=jeffxu@chromium.org \
--cc=justinstitt@google.com \
--cc=kernel@jfarr.cc \
--cc=kuba@kernel.org \
--cc=laoar.shao@gmail.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=lkp@intel.com \
--cc=llvm@lists.linux.dev \
--cc=masahiroy@kernel.org \
--cc=mhklinux@outlook.com \
--cc=mkoutny@suse.com \
--cc=morbo@google.com \
--cc=nathan@kernel.org \
--cc=nick.desaulniers+lkml@gmail.com \
--cc=nicolas.schier@linux.dev \
--cc=ojeda@kernel.org \
--cc=pabeni@redhat.com \
--cc=peterz@infradead.org \
--cc=przemyslaw.kitszel@intel.com \
--cc=rdunlap@infradead.org \
--cc=shakeel.butt@linux.dev \
--cc=shuah@kernel.org \
--cc=tamird@gmail.com \
--cc=thomas.weissschuh@linutronix.de \
--cc=tj@kernel.org \
--cc=ubizjak@gmail.com \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).