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>,
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 00/32] kmsan: Enable on s390
Date: Wed, 15 Nov 2023 21:30:32 +0100 [thread overview]
Message-ID: <20231115203401.2495875-1-iii@linux.ibm.com> (raw)
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 (32):
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: 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 | 2 +
arch/s390/boot/kmsan.c | 6 ++
arch/s390/boot/startup.c | 8 ++
arch/s390/boot/string.c | 15 ++++
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 | 49 ++++++++-----
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 | 2 +
arch/s390/kernel/unwind_bc.c | 2 +
arch/s390/kernel/vdso32/Makefile | 1 +
arch/s390/kernel/vdso64/Makefile | 1 +
arch/s390/purgatory/Makefile | 1 +
include/linux/kmsan-checks.h | 26 +++++++
include/linux/kmsan.h | 14 ++++
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 | 4 +-
mm/kmsan/instrumentation.c | 11 +--
mm/kmsan/kmsan.h | 3 +-
mm/kmsan/kmsan_test.c | 5 ++
mm/kmsan/report.c | 7 +-
mm/kmsan/shadow.c | 9 +--
mm/slub.c | 5 +-
38 files changed, 331 insertions(+), 81 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:[~2023-11-15 20:34 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-15 20:30 Ilya Leoshkevich [this message]
2023-11-15 20:30 ` [PATCH 01/32] ftrace: Unpoison ftrace_regs in ftrace_ops_list_func() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 02/32] kmsan: Make the tests compatible with kmsan.panic=1 Ilya Leoshkevich
2023-11-16 9:27 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 03/32] kmsan: Disable KMSAN when DEFERRED_STRUCT_PAGE_INIT is enabled Ilya Leoshkevich
2023-11-16 9:41 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 04/32] kmsan: Increase the maximum store size to 4096 Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 05/32] kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 06/32] kmsan: Fix kmsan_copy_to_user() " Ilya Leoshkevich
2023-11-16 10:13 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 07/32] kmsan: Remove a useless assignment from kmsan_vmap_pages_range_noflush() Ilya Leoshkevich
2023-11-16 10:52 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 08/32] kmsan: Remove an x86-specific #include from kmsan.h Ilya Leoshkevich
2023-11-16 9:44 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 09/32] kmsan: Introduce kmsan_memmove_metadata() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 10/32] kmsan: Expose kmsan_get_metadata() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 11/32] kmsan: Export panic_on_kmsan Ilya Leoshkevich
2023-11-16 9:14 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 12/32] kmsan: Allow disabling KMSAN checks for the current task Ilya Leoshkevich
2023-11-16 8:56 ` Alexander Potapenko
2023-11-16 9:17 ` Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 13/32] kmsan: Support SLAB_POISON Ilya Leoshkevich
2023-11-16 14:55 ` Alexander Potapenko
2023-11-16 15:08 ` Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 14/32] kmsan: Use ALIGN_DOWN() in kmsan_get_metadata() Ilya Leoshkevich
2023-11-16 9:54 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 15/32] mm: slub: Let KMSAN access metadata Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 16/32] mm: kfence: Disable KMSAN when checking the canary Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 17/32] lib/string: Add KMSAN support to strlcpy() and strlcat() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 18/32] lib/zlib: Unpoison DFLTCC output buffers Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 19/32] kmsan: Accept ranges starting with 0 on s390 Ilya Leoshkevich
2023-11-16 10:33 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 20/32] s390: Turn off KMSAN for boot, vdso and purgatory Ilya Leoshkevich
2023-11-16 9:20 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 21/32] s390: Use a larger stack for KMSAN Ilya Leoshkevich
2023-11-16 9:45 ` Alexander Potapenko
2023-11-15 20:30 ` [PATCH 22/32] s390/boot: Add the KMSAN runtime stub Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 23/32] s390/checksum: Add a KMSAN check Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 24/32] s390/cpacf: Unpoison the results of cpacf_trng() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 25/32] s390/ftrace: Unpoison ftrace_regs in kprobe_ftrace_handler() Ilya Leoshkevich
2023-11-15 20:30 ` [PATCH 26/32] s390/mm: Define KMSAN metadata for vmalloc and modules Ilya Leoshkevich
2023-11-16 15:03 ` Alexander Potapenko
2023-11-17 16:41 ` Alexander Gordeev
2023-11-15 20:30 ` [PATCH 27/32] s390/string: Add KMSAN support Ilya Leoshkevich
2023-11-16 21:42 ` kernel test robot
2023-11-15 20:31 ` [PATCH 28/32] s390/traps: Unpoison the kernel_stack_overflow()'s pt_regs Ilya Leoshkevich
2023-11-16 15:32 ` Alexander Potapenko
2023-11-15 20:31 ` [PATCH 29/32] s390/uaccess: Add KMSAN support to put_user() and get_user() Ilya Leoshkevich
2023-11-15 20:31 ` [PATCH 30/32] s390/unwind: Disable KMSAN checks Ilya Leoshkevich
2023-11-16 9:04 ` Alexander Potapenko
2023-11-16 9:05 ` Alexander Potapenko
2023-11-15 20:31 ` [PATCH 31/32] s390: Implement the architecture-specific kmsan functions Ilya Leoshkevich
2023-11-15 20:31 ` [PATCH 32/32] kmsan: Enable on s390 Ilya Leoshkevich
2023-11-16 8:42 ` [PATCH 00/32] " Alexander Potapenko
2023-11-16 10:13 ` Ilya Leoshkevich
2023-11-16 10:22 ` Christian Borntraeger
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