From: andrey.konovalov@linux.dev
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Marco Elver <elver@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Alexander Potapenko <glider@google.com>,
kasan-dev@googlegroups.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/8] kasan: test: avoid crashing the kernel with HW_TAGS
Date: Wed, 11 Aug 2021 21:21:16 +0200 [thread overview]
Message-ID: <cover.1628709663.git.andreyknvl@gmail.com> (raw)
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.
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
next reply other threads:[~2021-08-11 19:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 19:21 andrey.konovalov [this message]
2021-08-11 19:21 ` [PATCH 1/8] kasan: test: rework kmalloc_oob_right andrey.konovalov
2021-08-12 8:57 ` Marco Elver
2021-08-11 19:21 ` [PATCH 2/8] kasan: test: avoid writing invalid memory andrey.konovalov
2021-08-12 8:57 ` Marco Elver
2021-08-12 13:02 ` Andrey Konovalov
2021-08-11 19:21 ` [PATCH 3/8] kasan: test: avoid corrupting memory via memset andrey.konovalov
2021-08-12 8:56 ` Marco Elver
2021-08-12 12:55 ` Andrey Konovalov
2021-08-11 19:21 ` [PATCH 4/8] kasan: test: disable kmalloc_memmove_invalid_size for HW_TAGS andrey.konovalov
2021-08-12 8:57 ` Marco Elver
2021-08-11 19:21 ` [PATCH 5/8] kasan: test: only do kmalloc_uaf_memset for generic mode andrey.konovalov
2021-08-12 8:56 ` Marco Elver
2021-08-11 19:23 ` [PATCH 6/8] kasan: test: clean up ksize_uaf andrey.konovalov
2021-08-12 8:56 ` Marco Elver
2021-08-11 19:30 ` [PATCH 7/8] kasan: test: avoid corrupting memory in copy_user_test andrey.konovalov
2021-08-12 8:50 ` Marco Elver
2021-08-11 19:34 ` [PATCH 8/8] kasan: test: avoid corrupting memory in kasan_rcu_uaf andrey.konovalov
2021-08-12 8:50 ` Marco Elver
2021-08-12 8:58 ` [PATCH 0/8] kasan: test: avoid crashing the kernel with HW_TAGS Marco Elver
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