Nick Hu <nickhu@xxxxxxxxxxxxx> 於 2019年10月28日 週一 上午10:41寫道： > > 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 > Hi Nick, I have tested KASAN feature with test_kasan.ko based on commit cd9e72b80090a8cd7d84a47a30a06fa92ff277d1 (tag: riscv/for-v5.4-rc3) and it passed in Qemu and Unleashed board. Thank you for fixing the bug. :) Tested-by: Greentime Hu <greentime.hu@xxxxxxxxxx>
