* [merged mm-stable] kasan-add-atomic-tests.patch removed from -mm tree
@ 2024-02-22 0:03 Andrew Morton
2024-02-23 20:25 ` Paul Heidekrüger
0 siblings, 1 reply; 4+ messages in thread
From: Andrew Morton @ 2024-02-22 0:03 UTC (permalink / raw)
To: mm-commits, vincenzo.frascino, ryabinin.a.a, mark.rutland, glider,
elver, dvyukov, andreyknvl, paul.heidekrueger, akpm
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 5853 bytes --]
The quilt patch titled
Subject: kasan: add atomic tests
has been removed from the -mm tree. Its filename was
kasan-add-atomic-tests.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Paul Heidekrüger <paul.heidekrueger@tum.de>
Subject: kasan: add atomic tests
Date: Fri, 2 Feb 2024 11:32:59 +0000
Test that KASan can detect some unsafe atomic accesses.
As discussed in the linked thread below, these tests attempt to cover
the most common uses of atomics and, therefore, aren't exhaustive.
Link: https://lkml.kernel.org/r/20240202113259.3045705-1-paul.heidekrueger@tum.de
Link: https://lore.kernel.org/all/20240131210041.686657-1-paul.heidekrueger@tum.de/T/#u
Signed-off-by: Paul Heidekrüger <paul.heidekrueger@tum.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=214055
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/kasan/kasan_test.c | 79 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
--- a/mm/kasan/kasan_test.c~kasan-add-atomic-tests
+++ a/mm/kasan/kasan_test.c
@@ -697,6 +697,84 @@ static void kmalloc_uaf3(struct kunit *t
KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[8]);
}
+static void kasan_atomics_helper(struct kunit *test, void *unsafe, void *safe)
+{
+ int *i_unsafe = (int *)unsafe;
+
+ KUNIT_EXPECT_KASAN_FAIL(test, READ_ONCE(*i_unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, WRITE_ONCE(*i_unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, smp_load_acquire(i_unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, smp_store_release(i_unsafe, 42));
+
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_read(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_set(unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_add(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_sub(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_and(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_andnot(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_or(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_xor(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_xchg(unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_cmpxchg(unsafe, 21, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_try_cmpxchg(unsafe, safe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_try_cmpxchg(safe, unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_sub_and_test(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_and_test(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_and_test(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_add_negative(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_add_unless(unsafe, 21, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_not_zero(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_unless_negative(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_unless_positive(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_if_positive(unsafe));
+
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_read(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_set(unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_sub(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_and(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_andnot(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_or(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_xor(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_xchg(unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_cmpxchg(unsafe, 21, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_try_cmpxchg(unsafe, safe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_try_cmpxchg(safe, unsafe, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_sub_and_test(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_and_test(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_and_test(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add_negative(42, unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add_unless(unsafe, 21, 42));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_not_zero(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_unless_negative(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_unless_positive(unsafe));
+ KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_if_positive(unsafe));
+}
+
+static void kasan_atomics(struct kunit *test)
+{
+ void *a1, *a2;
+
+ /*
+ * Just as with kasan_bitops_tags(), we allocate 48 bytes of memory such
+ * that the following 16 bytes will make up the redzone.
+ */
+ a1 = kzalloc(48, GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
+ a2 = kzalloc(sizeof(int), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
+
+ /* Use atomics to access the redzone. */
+ kasan_atomics_helper(test, a1 + 48, a2);
+
+ kfree(a1);
+ kfree(a2);
+}
+
static void kmalloc_double_kzfree(struct kunit *test)
{
char *ptr;
@@ -1883,6 +1961,7 @@ static struct kunit_case kasan_kunit_tes
KUNIT_CASE(kasan_strings),
KUNIT_CASE(kasan_bitops_generic),
KUNIT_CASE(kasan_bitops_tags),
+ KUNIT_CASE(kasan_atomics),
KUNIT_CASE(vmalloc_helpers_tags),
KUNIT_CASE(vmalloc_oob),
KUNIT_CASE(vmap_tags),
_
Patches currently in -mm which might be from paul.heidekrueger@tum.de are
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [merged mm-stable] kasan-add-atomic-tests.patch removed from -mm tree
2024-02-22 0:03 [merged mm-stable] kasan-add-atomic-tests.patch removed from -mm tree Andrew Morton
@ 2024-02-23 20:25 ` Paul Heidekrüger
2024-02-24 0:10 ` Andrew Morton
0 siblings, 1 reply; 4+ messages in thread
From: Paul Heidekrüger @ 2024-02-23 20:25 UTC (permalink / raw)
To: Andrew Morton
Cc: kasan-dev, linux-kernel, linux-mm, vincenzo.frascino,
ryabinin.a.a, mark.rutland, glider, elver, dvyukov, andreyknvl
On 21.02.2024 16:03, Andrew Morton wrote:
>
> The quilt patch titled
> Subject: kasan: add atomic tests
> has been removed from the -mm tree. Its filename was
> kasan-add-atomic-tests.patch
>
> This patch was dropped because it was merged into the mm-stable branch
> of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>
> ------------------------------------------------------
> From: Paul Heidekr??ger <paul.heidekrueger@tum.de>
> Subject: kasan: add atomic tests
> Date: Fri, 2 Feb 2024 11:32:59 +0000
>
> Test that KASan can detect some unsafe atomic accesses.
>
> As discussed in the linked thread below, these tests attempt to cover
> the most common uses of atomics and, therefore, aren't exhaustive.
>
> Link: https://lkml.kernel.org/r/20240202113259.3045705-1-paul.heidekrueger@tum.de
> Link: https://lore.kernel.org/all/20240131210041.686657-1-paul.heidekrueger@tum.de/T/#u
> Signed-off-by: Paul Heidekr??ger <paul.heidekrueger@tum.de>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=214055
> Acked-by: Mark Rutland <mark.rutland@arm.com>
> Cc: Marco Elver <elver@google.com>
> Cc: Andrey Konovalov <andreyknvl@gmail.com>
> Cc: Alexander Potapenko <glider@google.com>
> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
> Cc: Dmitry Vyukov <dvyukov@google.com>
> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---
>
> mm/kasan/kasan_test.c | 79 ++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 79 insertions(+)
>
> --- a/mm/kasan/kasan_test.c~kasan-add-atomic-tests
> +++ a/mm/kasan/kasan_test.c
> @@ -697,6 +697,84 @@ static void kmalloc_uaf3(struct kunit *t
> KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[8]);
> }
>
> +static void kasan_atomics_helper(struct kunit *test, void *unsafe, void *safe)
> +{
> + int *i_unsafe = (int *)unsafe;
> +
> + KUNIT_EXPECT_KASAN_FAIL(test, READ_ONCE(*i_unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, WRITE_ONCE(*i_unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, smp_load_acquire(i_unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, smp_store_release(i_unsafe, 42));
> +
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_read(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_set(unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_add(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_sub(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_and(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_andnot(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_or(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_xor(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_xchg(unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_cmpxchg(unsafe, 21, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_try_cmpxchg(unsafe, safe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_try_cmpxchg(safe, unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_sub_and_test(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_and_test(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_and_test(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_add_negative(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_add_unless(unsafe, 21, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_not_zero(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_inc_unless_negative(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_unless_positive(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_dec_if_positive(unsafe));
> +
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_read(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_set(unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_sub(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_and(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_andnot(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_or(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_xor(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_xchg(unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_cmpxchg(unsafe, 21, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_try_cmpxchg(unsafe, safe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_try_cmpxchg(safe, unsafe, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_sub_and_test(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_and_test(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_and_test(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add_negative(42, unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_add_unless(unsafe, 21, 42));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_not_zero(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_inc_unless_negative(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_unless_positive(unsafe));
> + KUNIT_EXPECT_KASAN_FAIL(test, atomic_long_dec_if_positive(unsafe));
> +}
> +
> +static void kasan_atomics(struct kunit *test)
> +{
> + void *a1, *a2;
> +
> + /*
> + * Just as with kasan_bitops_tags(), we allocate 48 bytes of memory such
> + * that the following 16 bytes will make up the redzone.
> + */
> + a1 = kzalloc(48, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
> + a2 = kzalloc(sizeof(int), GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
> +
> + /* Use atomics to access the redzone. */
> + kasan_atomics_helper(test, a1 + 48, a2);
> +
> + kfree(a1);
> + kfree(a2);
> +}
> +
> static void kmalloc_double_kzfree(struct kunit *test)
> {
> char *ptr;
> @@ -1883,6 +1961,7 @@ static struct kunit_case kasan_kunit_tes
> KUNIT_CASE(kasan_strings),
> KUNIT_CASE(kasan_bitops_generic),
> KUNIT_CASE(kasan_bitops_tags),
> + KUNIT_CASE(kasan_atomics),
> KUNIT_CASE(vmalloc_helpers_tags),
> KUNIT_CASE(vmalloc_oob),
> KUNIT_CASE(vmap_tags),
> _
>
> Patches currently in -mm which might be from paul.heidekrueger@tum.de are
>
>
Hi Andrew!
There was further discussion around this patch [1], which led to a v3 of the
above patch but might have gotten lost in the wave of emails.
I'm unsure what the protocol is now; do I send you a new patch for the diff
between the above patch and the v3 patch, or can you just use v3 instead of the
above patch?
I hope this doesn't cause too much trouble.
Many thanks,
Paul
[1]:
https://lore.kernel.org/all/20240212083342.3075850-1-paul.heidekrueger@tum.de/
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [merged mm-stable] kasan-add-atomic-tests.patch removed from -mm tree
2024-02-23 20:25 ` Paul Heidekrüger
@ 2024-02-24 0:10 ` Andrew Morton
2024-02-24 10:54 ` [PATCH] kasan: fix a2 allocation and remove explicit cast in atomic tests Paul Heidekrüger
0 siblings, 1 reply; 4+ messages in thread
From: Andrew Morton @ 2024-02-24 0:10 UTC (permalink / raw)
To: Paul Heidekrüger
Cc: kasan-dev, linux-kernel, linux-mm, vincenzo.frascino,
ryabinin.a.a, mark.rutland, glider, elver, dvyukov, andreyknvl
On Fri, 23 Feb 2024 21:25:04 +0100 Paul Heidekrüger <paul.heidekrueger@tum.de> wrote:
> I'm unsure what the protocol is now; do I send you a new patch for the diff
> between the above patch and the v3 patch, or can you just use v3 instead of the
> above patch?
Yes please.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] kasan: fix a2 allocation and remove explicit cast in atomic tests
2024-02-24 0:10 ` Andrew Morton
@ 2024-02-24 10:54 ` Paul Heidekrüger
0 siblings, 0 replies; 4+ messages in thread
From: Paul Heidekrüger @ 2024-02-24 10:54 UTC (permalink / raw)
To: akpm
Cc: andreyknvl, dvyukov, elver, glider, kasan-dev, linux-kernel,
linux-mm, mark.rutland, paul.heidekrueger, ryabinin.a.a,
vincenzo.frascino
Address the additional feedback since "kasan: add atomic tests"
(4e76c8cc3378a20923965e3345f40f6b8ae0bdba) by removing an explicit cast
and fixing the size as well as the check of the allocation of `a2`.
CC: Marco Elver <elver@google.com>
CC: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/all/20240131210041.686657-1-paul.heidekrueger@tum.de/T/#u
Fixes: 4e76c8cc3378a20923965e3345f40f6b8ae0bdba
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=214055
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Paul Heidekrüger <paul.heidekrueger@tum.de>
---
@Andrew:
I wasn't sure whether you'd be squashing this patch into v1 or
if it'll end up as a separate commit. Hope this works either way!
Changes PATCH v2 -> PATCH v3:
* Fix the wrong variable being used when checking a2 after allocation
* Add Andrey's reviewed-by tag
Changes PATCH v1 -> PATCH v2:
* Make explicit cast implicit as per Mark's feedback
* Increase the size of the "a2" allocation as per Andrey's feedback
* Add tags
Changes PATCH RFC v2 -> PATCH v1:
* Remove casts to void*
* Remove i_safe variable
* Add atomic_long_* test cases
* Carry over comment from kasan_bitops_tags()
Changes PATCH RFC v1 -> PATCH RFC v2:
* Adjust size of allocations to make kasan_atomics() work with all KASan modes
* Remove comments and move tests closer to the bitops tests
* For functions taking two addresses as an input, test each address in a separate function call.
* Rename variables for clarity
* Add tests for READ_ONCE(), WRITE_ONCE(), smp_load_acquire() and smp_store_release()
mm/kasan/kasan_test.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/kasan/kasan_test.c b/mm/kasan/kasan_test.c
index 4ef2280c322c..7f0f87a2c3c4 100644
--- a/mm/kasan/kasan_test.c
+++ b/mm/kasan/kasan_test.c
@@ -1152,7 +1152,7 @@ static void kasan_bitops_tags(struct kunit *test)
static void kasan_atomics_helper(struct kunit *test, void *unsafe, void *safe)
{
- int *i_unsafe = (int *)unsafe;
+ int *i_unsafe = unsafe;
KUNIT_EXPECT_KASAN_FAIL(test, READ_ONCE(*i_unsafe));
KUNIT_EXPECT_KASAN_FAIL(test, WRITE_ONCE(*i_unsafe, 42));
@@ -1218,8 +1218,8 @@ static void kasan_atomics(struct kunit *test)
*/
a1 = kzalloc(48, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
- a2 = kzalloc(sizeof(int), GFP_KERNEL);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a1);
+ a2 = kzalloc(sizeof(atomic_long_t), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, a2);
/* Use atomics to access the redzone. */
kasan_atomics_helper(test, a1 + 48, a2);
--
2.40.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-02-24 10:54 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2024-02-22 0:03 [merged mm-stable] kasan-add-atomic-tests.patch removed from -mm tree Andrew Morton
2024-02-23 20:25 ` Paul Heidekrüger
2024-02-24 0:10 ` Andrew Morton
2024-02-24 10:54 ` [PATCH] kasan: fix a2 allocation and remove explicit cast in atomic tests Paul Heidekrüger
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