[PATCH 0/8] kasan: test: avoid crashing the kernel with HW_TAGS
From: andrey . konovalov
Date: Wed Aug 11 2021 - 15:21:47 EST
From: Andrey Konovalov <andreyknvl@xxxxxxxxx>
KASAN tests do out-of-bounds and use-after-free accesses. Running the
tests works fine for the GENERIC mode, as it uses qurantine and redzones.
But the HW_TAGS mode uses neither, and running the tests might crash
the kernel.
Rework the tests to avoid corrupting kernel memory.
Andrey Konovalov (8):
kasan: test: rework kmalloc_oob_right
kasan: test: avoid writing invalid memory
kasan: test: avoid corrupting memory via memset
kasan: test: disable kmalloc_memmove_invalid_size for HW_TAGS
kasan: test: only do kmalloc_uaf_memset for generic mode
kasan: test: clean up ksize_uaf
kasan: test: avoid corrupting memory in copy_user_test
kasan: test: avoid corrupting memory in kasan_rcu_uaf
lib/test_kasan.c | 74 ++++++++++++++++++++++++++++-------------
lib/test_kasan_module.c | 20 +++++------
2 files changed, 60 insertions(+), 34 deletions(-)
--
2.25.1