This patchset adds support for running KASAN-KUnit tests with the hardware tag-based mode and also contains a few fixes. Changes in v1->v2: - Fix return values of kasan_check_byte(). - Use KASAN_TEST_NEEDS_*() macros for checking configs required for tests. - Fix unused size in match_all_not_assigned(). - Fix typo in KASAN docs: "consist on" => "consist of". - Use READ/WRITE_ONCE() for accessing fail_data fields. - Doesn't leak memory in kmalloc_uaf2(). - Do up to 16 attempts in kmalloc_uaf2(). - Use kasan_report() for reporting from ksize() check. - Rename kasan_check() to kasan_byte_accessible(). - Add a test for kmem_cache_bulk_alloc(). - Checks that pointer tags are assigned from [KASAN_TAG_MIN, KASAN_TAG_KERNEL). - Don't run tests with kasan.mode=off. Andrey Konovalov (14): kasan: prefix global functions with kasan_ kasan: clarify HW_TAGS impact on TBI kasan: clean up comments in tests kasan: add macros to simplify checking test constraints kasan: add match-all tag tests kasan, arm64: allow using KUnit tests with HW_TAGS mode kasan: rename CONFIG_TEST_KASAN_MODULE kasan: add compiler barriers to KUNIT_EXPECT_KASAN_FAIL kasan: adapt kmalloc_uaf2 test to HW_TAGS mode kasan: fix memory corruption in kasan_bitops_tags test kasan: fix bug detection via ksize for HW_TAGS mode kasan: add proper page allocator tests kasan: add a test for kmem_cache_alloc/free_bulk kasan: don't run tests when KASAN is not enabled Documentation/dev-tools/kasan.rst | 24 +- arch/arm64/include/asm/memory.h | 1 + arch/arm64/include/asm/mte-kasan.h | 12 + arch/arm64/kernel/mte.c | 12 + arch/arm64/mm/fault.c | 16 +- include/linux/kasan-checks.h | 6 + include/linux/kasan.h | 16 ++ lib/Kconfig.kasan | 6 +- lib/Makefile | 2 +- lib/test_kasan.c | 423 +++++++++++++++++++++-------- lib/test_kasan_module.c | 5 +- mm/kasan/common.c | 56 ++-- mm/kasan/generic.c | 38 +-- mm/kasan/kasan.h | 69 +++-- mm/kasan/quarantine.c | 22 +- mm/kasan/report.c | 15 +- mm/kasan/report_generic.c | 8 +- mm/kasan/report_hw_tags.c | 8 +- mm/kasan/report_sw_tags.c | 8 +- mm/kasan/shadow.c | 26 +- mm/kasan/sw_tags.c | 20 +- mm/slab_common.c | 15 +- tools/objtool/check.c | 2 +- 23 files changed, 544 insertions(+), 266 deletions(-) -- 2.30.0.284.gd98b1dd5eaa7-goog
