v6: https://lore.kernel.org/lkml/20240621002616.40684-1-...@linux.ibm.com/
v6 -> v7: Drop the ptdump patch.
All patches are reviewed.
v5: https://lore.kernel.org/lkml/20240619154530.163232-1-...@linux.ibm.com/
v5 -> v6: Include KMSAN vmalloc areas in page table dump.
Fix doc comments; use KMSAN_WARN_ON (Alexander P.).
Patches that need review:
- [PATCH 16/39] kmsan: Expose KMSAN_WARN_ON()
- [PATCH 32/39] s390/ptdump: Add KMSAN page markers
v4: https://lore.kernel.org/lkml/20240613153924.961511-1-...@linux.ibm.com/
v4 -> v5: Fix the __memset() build issue.
Change the attribute #defines to lowercase in order to match
the existing code style.
Fix the kmsan_virt_addr_valid() implementation to avoid
recursion in debug builds, like it's done on x86_64 - dropped
R-bs, please take another look.
Add kmsan_disable_current()/kmsan_enable_current() doc;
Fix the poisoned memchr_inv() value in a different way;
Add the missing linux/instrumented.h #include;
(Alexander P.).
Patches that need review:
- [PATCH 12/37] kmsan: Introduce memset_no_sanitize_memory()
- [PATCH 13/37] kmsan: Support SLAB_POISON
- [PATCH 17/37] mm: slub: Disable KMSAN when checking the padding
bytes
- [PATCH 36/37] s390/kmsan: Implement the architecture-specific
functions
v3: https://lore.kernel.org/lkml/20231213233605.661251-1-...@linux.ibm.com/
v3 -> v4: Rebase.
Elaborate why ftrace_ops_list_func() change is needed on
x64_64 (Steven).
Add a comment to the DFLTCC patch (Alexander P.).
Simplify diag224();
Improve __arch_local_irq_attributes style;
Use IS_ENABLED(CONFIG_KMSAN) for vmalloc area (Heiko).
Align vmalloc area on _SEGMENT_SIZE (Alexander G.).
v2: https://lore.kernel.org/lkml/20231121220155.1217090-1-...@linux.ibm.com/
v2 -> v3: Drop kmsan_memmove_metadata() and strlcpy() patches;
Remove kmsan_get_metadata() stub;
Move kmsan_enable_current() and kmsan_disable_current() to
include/linux/kmsan.h, explain why a counter is needed;
Drop the memset_no_sanitize_memory() patch;
Use __memset() in the SLAB_POISON patch;
Add kmsan-checks.h to the DFLTCC patch;
Add recursion check to the arch_kmsan_get_meta_or_null()
patch (Alexander P.).
Fix inline + __no_kmsan_checks issues.
New patch for s390/irqflags, that resolves a lockdep warning.
New patch for s390/diag, that resolves a false positive when
running on an LPAR.
New patch for STCCTM, same as above.
New patch for check_bytes_and_report() that resolves a false
positive that occurs even on Intel.
v1: https://lore.kernel.org/lkml/20231115203401.2495875-1-...@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
Closes:
https://lore.kernel.org/oe-kbuild-all/202311170550.bsbo44ix-...@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 (38):
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: 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()
kmsan: Do not round up pg_data_t size
kmsan: Expose KMSAN_WARN_ON()
mm: slub: Let KMSAN access metadata
mm: slub: Disable KMSAN when checking the padding bytes
mm: kfence: Disable KMSAN when checking the canary
lib/zlib: Unpoison DFLTCC output buffers
kmsan: Accept ranges starting with 0 on s390
s390/boot: Turn off KMSAN
