From: Dmitry Vyukov <dvyukov@google.com>
To: Paul Lawrence <paullawrence@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Michal Marek <mmarek@suse.com>,
LKML <linux-kernel@vger.kernel.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Linux-MM <linux-mm@kvack.org>,
"open list:KERNEL BUILD + fi..." <linux-kbuild@vger.kernel.org>,
Matthias Kaehlcke <mka@chromium.org>,
Michael Davidson <md@google.com>,
Greg Hackmann <ghackmann@google.com>
Subject: Re: [PATCH v2 2/5] kasan: Add tests for alloca poisonong
Date: Thu, 30 Nov 2017 09:30:41 +0100 [thread overview]
Message-ID: <CACT4Y+ZFeCg9Ja5UouHb0KABvR+nSwts2ZV995DnONZVN6nztQ@mail.gmail.com> (raw)
In-Reply-To: <20171129215050.158653-3-paullawrence@google.com>
On Wed, Nov 29, 2017 at 10:50 PM, 'Paul Lawrence' via kasan-dev
<kasan-dev@googlegroups.com> wrote:
> Signed-off-by: Greg Hackmann <ghackmann@google.com>
> Signed-off-by: Paul Lawrence <paullawrence@google.com>
>
> lib/test_kasan.c | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/lib/test_kasan.c b/lib/test_kasan.c
> index ef1a3ac1397e..2724f86c4cef 100644
> --- a/lib/test_kasan.c
> +++ b/lib/test_kasan.c
> @@ -472,6 +472,26 @@ static noinline void __init use_after_scope_test(void)
> p[1023] = 1;
> }
>
> +static noinline void __init kasan_alloca_oob_left(void)
> +{
> + volatile int i = 10;
> + char alloca_array[i];
> + char *p = alloca_array - 1;
> +
> + pr_info("out-of-bounds to left on alloca\n");
> + *(volatile char *)p;
> +}
> +
> +static noinline void __init kasan_alloca_oob_right(void)
> +{
> + volatile int i = 10;
> + char alloca_array[i];
> + char *p = alloca_array + i;
> +
> + pr_info("out-of-bounds to right on alloca\n");
> + *(volatile char *)p;
> +}
> +
> static int __init kmalloc_tests_init(void)
> {
> /*
> @@ -502,6 +522,8 @@ static int __init kmalloc_tests_init(void)
> memcg_accounted_kmem_cache();
> kasan_stack_oob();
> kasan_global_oob();
> + kasan_alloca_oob_left();
> + kasan_alloca_oob_right();
> ksize_unpoisons_memory();
> copy_user_test();
> use_after_scope_test();
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
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next prev parent reply other threads:[~2017-11-30 8:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 21:50 [PATCH v2 0/5] kasan: support alloca, LLVM Paul Lawrence
2017-11-29 21:50 ` [PATCH v2 1/5] kasan: support alloca() poisoning Paul Lawrence
2017-11-30 8:26 ` Dmitry Vyukov
2017-11-30 8:29 ` Dmitry Vyukov
2017-11-29 21:50 ` [PATCH v2 2/5] kasan: Add tests for alloca poisonong Paul Lawrence
2017-11-30 8:30 ` Dmitry Vyukov [this message]
2017-11-29 21:50 ` [PATCH v2 3/5] kasan: added functions for unpoisoning stack variables Paul Lawrence
2017-11-30 8:31 ` Dmitry Vyukov
2017-11-29 21:50 ` [PATCH v2 4/5] kasan: support LLVM-style asan parameters Paul Lawrence
2017-11-30 8:33 ` Dmitry Vyukov
2017-11-30 16:36 ` Andrey Ryabinin
2017-11-29 21:50 ` [PATCH v2 5/5] kasan: add compiler support for clang Paul Lawrence
2017-11-30 8:34 ` Dmitry Vyukov
2017-11-30 16:45 ` Andrey Ryabinin
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