From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
Alexander Potapenko <glider@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Heiko Carstens <hca@linux.ibm.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Marco Elver <elver@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Pekka Enberg <penberg@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Vlastimil Babka <vbabka@suse.cz>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>,
Dmitry Vyukov <dvyukov@google.com>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-s390@vger.kernel.org,
linux-trace-kernel@vger.kernel.org,
Mark Rutland <mark.rutland@arm.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Sven Schnelle <svens@linux.ibm.com>,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v2 00/33] kmsan: Enable on s390
Date: Tue, 21 Nov 2023 23:00:54 +0100 [thread overview]
Message-ID: <20231121220155.1217090-1-iii@linux.ibm.com> (raw)
v1: https://lore.kernel.org/lkml/20231115203401.2495875-1-iii@linux.ibm.com/
v1 -> v2: Add comments, sort #includes, introduce
memset_no_sanitize_memory() and use it to avoid unpoisoning
of redzones, change vmalloc alignment to _REGION3_SIZE, add
R-bs (Alexander P.).
Fix building
[PATCH 28/33] s390/string: Add KMSAN support
with FORTIFY_SOURCE.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311170550.bSBo44ix-lkp@intel.com/
Hi,
This series provides the minimal support for Kernel Memory Sanitizer on
s390. Kernel Memory Sanitizer is clang-only instrumentation for finding
accesses to uninitialized memory. The clang support for s390 has already
been merged [1].
With this series, I can successfully boot s390 defconfig and
debug_defconfig with kmsan.panic=1. The tool found one real
s390-specific bug (fixed in master).
Best regards,
Ilya
[1] https://reviews.llvm.org/D148596
Ilya Leoshkevich (33):
ftrace: Unpoison ftrace_regs in ftrace_ops_list_func()
kmsan: Make the tests compatible with kmsan.panic=1
kmsan: Disable KMSAN when DEFERRED_STRUCT_PAGE_INIT is enabled
kmsan: Increase the maximum store size to 4096
kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces
kmsan: Fix kmsan_copy_to_user() on arches with overlapping address
spaces
kmsan: Remove a useless assignment from
kmsan_vmap_pages_range_noflush()
kmsan: Remove an x86-specific #include from kmsan.h
kmsan: Introduce kmsan_memmove_metadata()
kmsan: Expose kmsan_get_metadata()
kmsan: Export panic_on_kmsan
kmsan: Allow disabling KMSAN checks for the current task
kmsan: Introduce memset_no_sanitize_memory()
kmsan: Support SLAB_POISON
kmsan: Use ALIGN_DOWN() in kmsan_get_metadata()
mm: slub: Let KMSAN access metadata
mm: kfence: Disable KMSAN when checking the canary
lib/string: Add KMSAN support to strlcpy() and strlcat()
lib/zlib: Unpoison DFLTCC output buffers
kmsan: Accept ranges starting with 0 on s390
s390: Turn off KMSAN for boot, vdso and purgatory
s390: Use a larger stack for KMSAN
s390/boot: Add the KMSAN runtime stub
s390/checksum: Add a KMSAN check
s390/cpacf: Unpoison the results of cpacf_trng()
s390/ftrace: Unpoison ftrace_regs in kprobe_ftrace_handler()
s390/mm: Define KMSAN metadata for vmalloc and modules
s390/string: Add KMSAN support
s390/traps: Unpoison the kernel_stack_overflow()'s pt_regs
s390/uaccess: Add KMSAN support to put_user() and get_user()
s390/unwind: Disable KMSAN checks
s390: Implement the architecture-specific kmsan functions
kmsan: Enable on s390
Documentation/dev-tools/kmsan.rst | 4 +-
arch/s390/Kconfig | 1 +
arch/s390/Makefile | 2 +-
arch/s390/boot/Makefile | 3 +
arch/s390/boot/kmsan.c | 6 ++
arch/s390/boot/startup.c | 8 ++
arch/s390/boot/string.c | 16 ++++
arch/s390/include/asm/checksum.h | 2 +
arch/s390/include/asm/cpacf.h | 2 +
arch/s390/include/asm/kmsan.h | 36 +++++++++
arch/s390/include/asm/pgtable.h | 10 +++
arch/s390/include/asm/string.h | 20 +++--
arch/s390/include/asm/thread_info.h | 2 +-
arch/s390/include/asm/uaccess.h | 110 ++++++++++++++++++++--------
arch/s390/kernel/ftrace.c | 1 +
arch/s390/kernel/traps.c | 6 ++
arch/s390/kernel/unwind_bc.c | 4 +
arch/s390/kernel/vdso32/Makefile | 3 +-
arch/s390/kernel/vdso64/Makefile | 3 +-
arch/s390/purgatory/Makefile | 2 +
include/linux/kmsan-checks.h | 26 +++++++
include/linux/kmsan.h | 23 ++++++
include/linux/kmsan_types.h | 2 +-
kernel/trace/ftrace.c | 1 +
lib/string.c | 6 ++
lib/zlib_dfltcc/dfltcc.h | 1 +
lib/zlib_dfltcc/dfltcc_util.h | 23 ++++++
mm/Kconfig | 1 +
mm/kfence/core.c | 5 +-
mm/kmsan/core.c | 2 +-
mm/kmsan/hooks.c | 30 +++++++-
mm/kmsan/init.c | 5 +-
mm/kmsan/instrumentation.c | 11 +--
mm/kmsan/kmsan.h | 9 +--
mm/kmsan/kmsan_test.c | 5 ++
mm/kmsan/report.c | 7 +-
mm/kmsan/shadow.c | 9 +--
mm/slub.c | 12 ++-
38 files changed, 345 insertions(+), 74 deletions(-)
create mode 100644 arch/s390/boot/kmsan.c
create mode 100644 arch/s390/include/asm/kmsan.h
--
2.41.0
next reply other threads:[~2023-11-21 22:03 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 22:00 Ilya Leoshkevich [this message]
2023-11-21 22:00 ` [PATCH v2 01/33] ftrace: Unpoison ftrace_regs in ftrace_ops_list_func() Ilya Leoshkevich
2023-11-22 23:32 ` Steven Rostedt
2023-12-08 14:16 ` Alexander Potapenko
2023-12-08 14:31 ` Steven Rostedt
2023-12-12 2:05 ` Ilya Leoshkevich
2023-11-21 22:00 ` [PATCH v2 02/33] kmsan: Make the tests compatible with kmsan.panic=1 Ilya Leoshkevich
2023-11-21 22:00 ` [PATCH v2 03/33] kmsan: Disable KMSAN when DEFERRED_STRUCT_PAGE_INIT is enabled Ilya Leoshkevich
2023-11-21 22:00 ` [PATCH v2 04/33] kmsan: Increase the maximum store size to 4096 Ilya Leoshkevich
2023-12-08 16:31 ` Alexander Potapenko
2023-11-21 22:00 ` [PATCH v2 05/33] kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces Ilya Leoshkevich
2023-12-11 9:52 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 06/33] kmsan: Fix kmsan_copy_to_user() " Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 07/33] kmsan: Remove a useless assignment from kmsan_vmap_pages_range_noflush() Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 08/33] kmsan: Remove an x86-specific #include from kmsan.h Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 09/33] kmsan: Introduce kmsan_memmove_metadata() Ilya Leoshkevich
2023-12-08 16:51 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 10/33] kmsan: Expose kmsan_get_metadata() Ilya Leoshkevich
2023-12-11 10:07 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 11/33] kmsan: Export panic_on_kmsan Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 12/33] kmsan: Allow disabling KMSAN checks for the current task Ilya Leoshkevich
2023-12-11 11:50 ` Alexander Potapenko
2023-12-13 15:01 ` Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 13/33] kmsan: Introduce memset_no_sanitize_memory() Ilya Leoshkevich
2023-12-08 13:48 ` Alexander Potapenko
2023-12-08 14:07 ` Ilya Leoshkevich
2023-12-08 15:25 ` Alexander Potapenko
2023-12-13 1:31 ` Ilya Leoshkevich
2023-12-13 11:32 ` Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 14/33] kmsan: Support SLAB_POISON Ilya Leoshkevich
2023-12-08 13:51 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 15/33] kmsan: Use ALIGN_DOWN() in kmsan_get_metadata() Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 16/33] mm: slub: Let KMSAN access metadata Ilya Leoshkevich
2023-11-30 15:26 ` Vlastimil Babka
2023-11-21 22:01 ` [PATCH v2 17/33] mm: kfence: Disable KMSAN when checking the canary Ilya Leoshkevich
2023-12-08 12:53 ` Alexander Potapenko
2023-12-08 13:55 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 18/33] lib/string: Add KMSAN support to strlcpy() and strlcat() Ilya Leoshkevich
2023-12-08 16:50 ` Alexander Potapenko
2023-12-13 0:53 ` Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 19/33] lib/zlib: Unpoison DFLTCC output buffers Ilya Leoshkevich
2023-12-08 13:32 ` Alexander Potapenko
2023-12-08 14:14 ` Ilya Leoshkevich
2023-12-08 14:25 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 20/33] kmsan: Accept ranges starting with 0 on s390 Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 21/33] s390: Turn off KMSAN for boot, vdso and purgatory Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 22/33] s390: Use a larger stack for KMSAN Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 23/33] s390/boot: Add the KMSAN runtime stub Ilya Leoshkevich
2023-12-08 16:56 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 24/33] s390/checksum: Add a KMSAN check Ilya Leoshkevich
2023-12-08 13:38 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 25/33] s390/cpacf: Unpoison the results of cpacf_trng() Ilya Leoshkevich
2023-12-11 10:36 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 26/33] s390/ftrace: Unpoison ftrace_regs in kprobe_ftrace_handler() Ilya Leoshkevich
2023-12-08 14:18 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 27/33] s390/mm: Define KMSAN metadata for vmalloc and modules Ilya Leoshkevich
2023-12-11 10:13 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 28/33] s390/string: Add KMSAN support Ilya Leoshkevich
2023-12-11 10:49 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 29/33] s390/traps: Unpoison the kernel_stack_overflow()'s pt_regs Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 30/33] s390/uaccess: Add KMSAN support to put_user() and get_user() Ilya Leoshkevich
2023-12-11 10:46 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 31/33] s390/unwind: Disable KMSAN checks Ilya Leoshkevich
2023-11-21 22:01 ` [PATCH v2 32/33] s390: Implement the architecture-specific kmsan functions Ilya Leoshkevich
2023-12-11 10:26 ` Alexander Potapenko
2023-12-11 10:39 ` Ilya Leoshkevich
2023-12-11 10:45 ` Alexander Potapenko
2023-11-21 22:01 ` [PATCH v2 33/33] kmsan: Enable on s390 Ilya Leoshkevich
2023-11-29 9:19 ` Alexander Potapenko
2023-11-29 9:58 ` Ilya Leoshkevich
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=20231121220155.1217090-1-iii@linux.ibm.com \
--to=iii@linux.ibm.com \
--cc=42.hyeyoo@gmail.com \
--cc=agordeev@linux.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=borntraeger@linux.ibm.com \
--cc=cl@linux.com \
--cc=dvyukov@google.com \
--cc=elver@google.com \
--cc=glider@google.com \
--cc=gor@linux.ibm.com \
--cc=hca@linux.ibm.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=kasan-dev@googlegroups.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mhiramat@kernel.org \
--cc=penberg@kernel.org \
--cc=rientjes@google.com \
--cc=roman.gushchin@linux.dev \
--cc=rostedt@goodmis.org \
--cc=svens@linux.ibm.com \
--cc=vbabka@suse.cz \
/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).