KASAN is an important runtime memory debugging feature in linux kernel which can detect use-after-free and out-of-bounds problems. Changes in v2: - Remove the porting of memmove and exclude the check instead. - Fix some code noted by Christoph Hellwig Changes in v3: - Update the KASAN documentation to mention that riscv is supported. Changes in v4: - Correct the commit log - Fix the bug reported by Greentime Hu Nick Hu (3): kasan: No KASAN's memmove check if archs don't have it. riscv: Add KASAN support kasan: Add riscv to KASAN documentation. Documentation/dev-tools/kasan.rst | 4 +- arch/riscv/Kconfig | 1 + arch/riscv/include/asm/kasan.h | 27 ++++++++ arch/riscv/include/asm/pgtable-64.h | 5 ++ arch/riscv/include/asm/string.h | 9 +++ arch/riscv/kernel/head.S | 3 + arch/riscv/kernel/riscv_ksyms.c | 2 + arch/riscv/kernel/setup.c | 5 ++ arch/riscv/kernel/vmlinux.lds.S | 1 + arch/riscv/lib/memcpy.S | 5 +- arch/riscv/lib/memset.S | 5 +- arch/riscv/mm/Makefile | 6 ++ arch/riscv/mm/kasan_init.c | 104 ++++++++++++++++++++++++++++ mm/kasan/common.c | 2 + 14 files changed, 173 insertions(+), 6 deletions(-) create mode 100644 arch/riscv/include/asm/kasan.h create mode 100644 arch/riscv/mm/kasan_init.c -- 2.17.0
