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Subject[PATCH v2 0/8] kasan: test: avoid crashing the kernel with HW_TAGS
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From: Andrey Konovalov <andreyknvl@gmail.com>

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.

Changes v1->v2:
- Touch both good and bad memory in memset tests as suggested by Marco.

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 | 80 +++++++++++++++++++++++++++++------------
lib/test_kasan_module.c | 20 +++++------
2 files changed, 66 insertions(+), 34 deletions(-)

--
2.25.1

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